Cleansing composition and article

Abstract

A cleansing composition comprising a non-biological surfactant and a biosurfactant. The composition may comprise a glycolipid (such as a rhamnolipid, a trehalolipid, a sophorolipid, or a mannosyleryth

Description

Field The invention relates to a cleansing composition comprising one or more biosurfactants and one or more non-biological surfactants, to a cleansing article comprising the composition and to methods and uses of such compositions and articles, preferably in the fields of household or personal care. Background Cleansing compositions are required to effectively clean soil from surfaces for example skin, hair and household surfaces. Many cleansing compositions comprise non-aqueous solvents and harsh surfactants, which are undesirable due to their impact on human skin. The impact of detergents on the environment is also a growing concern among consumers. It is therefore desirable to provide cleansing compositions that are effective at removing soils (especially hard to remove soils), whilst being mild and environmentally friendly. Aqueous cleansing compositions which are effective at low concentrations of surfactant, such as those referred to as micellar water are of particular interest in personal care applications. These are used primarily for removal of cosmetics, although may find application as general cleansing compositions. Removal of cosmetics requires mildness in combination with effective detergency, for example to remove waterproof and / or oil-based cosmetics, such as mascara, from skin and hair. It is particularly important for cleansing compositions to be mild if they are to be applied to delicate facial skin e.g. adjacent to the eyes. In use, cleansing compositions may be applied to a substrate material prior to application to a surface to be cleaned. The cleansing composition may be applied to a substrate material at the point of use or may be pre-applied to a substrate material such that the cleansing composition is supplied as a component of a cleansing article. For example, a cleansing composition may be applied to a cloth (for example a face or body cloth) or a cotton wool pad at the point of use, or may be pre-applied, for example in the form of a wet-wipe. This produces an article for the consumer to easily clean and wipe surfaces, such as skin or counter-tops, and can improve cleansing efficacy. Ready-made articles, such as wet-wipes, are more convenient for consumers. There is also growing demand for more environmentally friendly options within the wet-wipe market. It is common for cleansing compositions to produce a foam when agitated, however, this can cause problems in manufacturing of both the compositions and, especially, wet-wipes. For example, manufacturing processes may need to be slowed down to avoid foam formation or to allow the foam to dissipate. Alongside other benefits, improving manufacturing efficiency may reduce the environmental impact of these products. High foam is undesirable in cleansing compositions used on the face especially around the eyes and in cleansing compositions used in auto-dishwash. Summary It is thus an objective of the present invention to provide cleansing compositions and articles which provides improved cleaning performance when compared with existing compositions and articles, preferably wherein the compositions and articles are low foaming. According to a first aspect of the invention, there is provided a cleansing composition comprising one or more non-biological surfactants and one or more biosurfactants, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. The inventors have surprisingly found that the use of one or more biosurfactants in combination with one or more non-biological surfactants can provide an unexpectedly low foaming composition which provides effective cleaning. According to a second aspect of the invention, there is provided a cleansing article comprising a fibrous substrate impregnated with a cleansing composition of the first aspect. According to a third aspect of the invention, there is provided a method ofcleaning to at least a portion of a surface, wherein the method comprises contacting the portion of the surface with the cleansing composition of the first aspect or the cleansing article of the second aspect. According to a fourth aspect of the invention, there is provided a use of a cleansing composition or cleansing article according to the first or second aspects to provide cleaning to at least a portion of a surface. According to a fifth aspect of the invention, there is provided a method of forming a cleansing article according to the second aspect, the method comprising impregnating the fibrous substrate with the cleansing composition. According to a sixth aspect of the invention, there is provided a kit comprising a cleansing composition according to the first aspect and a fibrous substrate to which the cleansing composition may be applied. According to a seventh aspect of the invention, there is provided a product comprising the cleansing composition or cleansing article according to the first or second aspects and packaging for the cleansing composition orcleansing article. Detailed Description Unless otherwise stated, the following terms used in the specification and claims have the meanings set out below. The term "hydrocarbyl" is used in its ordinary sense, which is well-known to those skilled in the art. Specifically, it refers to a group having a carbon atom directly attached to the remainder of the molecule and having predominantly hydrocarbon character. The terms “alkyl” and “alkenyl” include both straight and branched chain alkyl and alkenyl groups respectively unless otherwise stated. References to individual alkyl groups such as “propyl” are specific for the straight chain version only and references to individual branched chain alkyl groups such as “isopropyl” are specific for the branched chain version only. For example, “C3-C35 alkyl” includes C11-C23 alkyl, C7-C23 alkyl, propyl, isopropyl and t-butyl. References to individual alkenyl groups such as “propenyl” are specific for the straight chain version only and references to individual branched chain alkenyl groups such as “isopropenyl” are specific for the branched chain version only. For example, “C3-C35 alkenyl” includes C11-C23 alkenyl, C7-C23 alkenyl, propenyl and isopropenyl. The term “aryl” as used herein relates to an organic radical derived from an aromatic hydrocarbon by removal of one hydrogen, and includes any monocyclic, bicyclic or polycyclic carbon ring of up to 7 members in each ring, wherein at least one ring is aromatic. As used in the specification and the appended claims, the singular forms "a", "an," and "the" include both singular and plural referents unless the context clearly dictates otherwise. Throughout this specification, the term “comprising” or “comprises” means including the component(s) specified but not to the exclusion of the presence of other components. The term “consisting essentially of’ or “consists essentially of’ means including the components specified but excluding other components except for components added for a purpose other than achieving the technical effect of the invention. The term “consisting of’ or “consists of’ means including the components specified but excluding other components. Whenever appropriate, depending upon the context, the use of the term “comprises” or “comprising” may also be taken to include the meaning “consists essentially of’ or “consisting essentially of’, and also may also be taken to include the meaning “consists of’ or “consisting of’. References herein to the composition being “free of’ or “free from” certain components are intended to mean that the component referenced is excluded from the composition, although a negligible amount, such as 0.01 wt% or less based on the total weight of the composition, of the component may be present for example due to impurities that may be present. As used herein, unless otherwise expressly specified, all numbers such as those expressing values, ranges, amounts of percentages may be read as if prefaced by the word “about”, even if the term does not expressly appear. The recitation of numerical ranges by endpoints includes all integer numbers and, where appropriate, fractions subsumed within that range (e.g. 1 to 5 can include 1,2,3,4 when referring to, for example, a number of elements, and can also include 1.5, 2, 2.70 and 3.80, when referring to, for example, measurements). The recitation of end points also includes the end point values themselves (e.g. from 1.0 to 5.0 includes both 1.0 and 5.0). Any numerical range recited herein is intended to include all sub-ranges subsumed therein. The optional features set out herein may be used either individually or in combination with each other where appropriate and particularly in the combinations as set out in the accompanying claims. The optional features for each exemplary aspect of the invention, as set out herein are also applicable to any other aspects or exemplary aspects of the invention, where appropriate. In other words, the skilled person reading this specification should consider the optional features for each aspect or embodiment of the invention as interchangeable and combinable between different aspects of the invention. As used herein, the term "and / or," when used in a list of two or more items, means that any one of the listed items can be employed by itself or any combination of two or more of the listed items can be employed. For example, if a list is described as comprising group A, B, and / or C, the list can comprise A alone; B alone; C alone; A and B in combination; A and C in combination, B and C in combination; or A, B, and C in combination. References to “one or more” of a list of components means that any one of the listed items can be employed by itself or any combination of two or more of the listed items can be employed. For example, if a list is described as one or more of A, B, and C, the list can comprise A alone; B alone; C alone; A and B in combination; A and C in combination, B and C in combination; or A, B, and C in combination. According to a first aspect of the invention, there is provided a cleansing composition comprising one or more non-biological surfactants and one or more biosurfactants, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. Thus included within the first aspect of the invention are: a) cleansing compositions comprising a biosurfactant (for example a glycolipid) and a non-biological surfactant, provided that the cleansing composition does not comprise a taurate surfactant, and b) cleansing compositions that comprise a biosurfactant and a non-biological surfactant, provided that the cleansing composition does not comprise a glycolipid, and c) cleansing compositions comprising a biosurfactant and a non-biological surfactant, provided that the cleansing composition does not comprise a taurate surfactant and does not comprise a glycolipid. According to a first embodiment of the first aspect, the cleansing composition comprises one or more non-biological surfactants and one or more biosurfactants, provided that the cleansing composition does not comprise a taurate surfactant (i.e. as a non-biological surfactant thereof). Preferably, in such a composition the one or more biosurfactants include one or more glycolipids. For example, included within the first embodiment of the first aspect are cleansing compositions comprising a glycolipid (for example a sophorolipid) and an alkyl glucoside and that do not contain a taurate surfactant. According to a second embodiment of the first aspect, the cleansing composition comprises one or more non-biological surfactants and one or more biosurfactants, provided that the cleansing composition does not comprise a glycolipid (i.e. as the biosurfactant thereof). For example, included within the second embodiment of the first aspect are cleansing compositions comprising a non-glycolipid biosurfactant (for example a polymeric biosurfactant) and an alkyl glucoside and that do not contain a glycolipid. According to a third embodiment of the first aspect, the cleansing composition comprises one or more non-biological surfactants and one or more biosurfactants, provided that the cleansing composition does not comprise a taurate surfactant (i.e. as a non-biological surfactant thereof) and does not comprise a glycolipid (i.e. as a biological surfactant thereof). For example, included within the third embodiment of the first aspect are cleansing compositions comprising a non-glycolipid biosurfactant (for example a polymeric biosurfactant) and an alkyl glucoside and that do not contain both of a glycolipid and a taurate surfactant. References herein to the first aspect apply to each of the first, second and third embodiments thereof unless otherwise stated and the requirements of the first aspect apply to the first, second and third embodiments thereof as appropriate. Any details described in relation to the first aspect may apply to each of the first, second and third embodiments thereof unless otherwise indicated. References herein to one or more biosurfactants include mixtures of different biosurfactants when more than one biosurfactant is used. Biosurfactants typically have a very high Renewable Carbon Index (RCI) of up to 100% and completely biodegrade, improving the sustainability profile of the invention. By the term “biosurfactant” we mean a surfactant that is produced by microorganisms, for example which may be a product of a fermentation process. Typically, a biosurfactant is generated as a metabolic product during bacterial, fungal or algal fermentation, and the metabolic product may be further derivatised. Thus, references herein to a biosurfactant refer to biosurfactants that are direct metabolic products of bacterial, fungal or algal fermentation, as well as derivatives of the direct metabolic products. Similarly, references herein to a specific biosurfactant also referto derivatives of that biosurfactant unless otherwise stated. The use of biosurfactants in the composition, method and use of the invention is advantageous, because biosurfactants are natural products, are generated in a sustainable way, are environmentally benign and typically have low toxicity. Biosurfactants are typically classified in four categories as polymeric biosurfactants, lipopeptides (or also called proteo-lipids), phospholipids and glycolipids. The one or more biosurfactants may be a complex mixture of biosurfactants. Biosurfactants may comprise one or more fatty acid and / or fatty alcohol residues. Suitably biosurfactants useful in the invention comprise one or more fatty acid residues. The one or more fatty acid and / or fatty alcohol residues that may be present in the biosurfactants may be the same or different and may be derived from any suitable fatty acid and / or fatty alcohol, preferably from a naturally occurring fatty acid and / orfatty alcohol. Fatty acid residues are mostly derived from natural plant oils in the form of triglycerides. For example, biocatalysts may hydrolyse lipid esters in natural plant oils forming fatty acids and glycerol. Suitably, the fatty acid and / orfatty alcohol residues may comprise a branched or unbranched, saturated or unsaturated, hydrocarbyl group. The fatty acid and / or fatty alcohol residues that may be present in the biosurfactants may comprise from 4 to 50 carbon atoms, for example from 6 to 30 carbon atoms, preferably from 8 to 24 carbon atoms, more preferably from 12 to 22, or from 14 to 20 or from 16 to 18 carbon atoms. Preferred biosurfactants may therefore comprise residues of fatty acids derived from oleic acid, hydroxy substituted oleic acid (such as ricinoleic acid), palmitic acid and vegetable oils (such as sunflower, corn, soya, safflower oil and rapeseed oil). Any suitable biosurfactant(s) may be used provided that the conditions of the first aspect are fulfilled. Thus, in the first embodiment of the first aspect, the biosurfactant may be any suitable biosurfactant, and in the second and third embodiments of the first aspect, the biosurfactant may be any suitable biosurfactant that is not a glycolipid. The one or more biosurfactants may each have any suitable molecular weight, such as a molecular weight of from 200 to 3000 g mol-1, for example from 250 to 2000 g mol-1, such as from 500 to 1500 g mol-1. For compositions of the first embodiment of the first aspect, the one or more biosurfactants may suitably be selected from one or more of a glycolipid, a lipopeptide, a phospholipid and a polymeric biosurfactant. For example, the one or more biosurfactants may be a glycolipid and a lipopeptide, or may be a glycolipid, a lipopeptide and a phospholipid, or may be two different glycolipids and so on (i.e. such that combinations of the one or more biosurfactants may be used). Preferably for compositions of the first embodiment of the first aspect, the one or more biosurfactants comprise one or more glycolipids. In compositions of the first embodiment of the first aspect, the one or more biosurfactants may be one or more glycolipids. Glycolipids comprise one or more carbohydrate residues in addition to the one or more fatty acid and / or fatty alcohol residues. The carbohydrate and fatty acid / fatty alcohol residues are joined either by means of a linker group or a direct bond, for example via an ester, amide or glycosidic bond. Suitable glycolipids may comprise one or more carbohydrate residues selected from rhamnose, trehalose, sophorose, mannose, galactose, glucose, cellobiose, glucosamine, sulfoquinovose, fructose, xylose, sucrose, lactose, maltose, sorbitol, erythritol and / or mannitol residues. For example, the one or more carbohydrate residues may be selected from rhamnose, trehalose, sophorose, mannose, erythritol, galactose, cellobiose and / or glucose residues. Preferably, the one or more carbohydrate residues may be selected from rhamnose, trehalose, sophorose, mannose and / or erythritol residues. More preferably, the one or more carbohydrate residues may be selected from sophorose and / or rhamnose residues. Most preferably, the one or more carbohydrate residues may be sophorose residues. Suitable glycolipids may be selected from one or more of a rhamnolipid, a trehalolipid, a sophorolipid, a mannosylerythritol lipid, a glycolipid produced by Meyerozama guilliermondii, Saccharomyces cerevisiae, Candida utilis, Candida bombicola and / or Marinobacter hydrocarbonoclasticus. In compositions of the first embodiment of the first aspect, suitable glycolipids may be selected from one or more of a rhamnolipid, a trehalolipid, a sophorolipid and a mannosylerythritol lipid. Preferably, in compositions of the first embodiment of the first aspect, the one or more glycolipids may be one or more sophorolipids. For example, in compositions of the first embodiment of the first aspect the one or more biosurfactants may be selected from one or more of a rhamnolipid, a trehalolipid, a sophorolipid and a mannosylerythritol lipid. The one or more biosurfactants may be selected from one or more of a rhamnolipid and a sophorolipid. Suitably, the one or more biosurfactants may be one or more sophorolipids. Rhamnolipids comprise a rhamnose residue. Examples of suitable rhamnolipids may include those produced by species of Pseudomonas, Lysinibacillus and / or Serratia, for example those produced by Pseudomonas aeruginosa, Pseudomonas cepacia, Lysinibacillus sphaericus and / or Serratia rubidaea. Trehalolipids comprise a trehalose residue. Examples of suitable trehalolipids may include those produced by species of Nocardia, Rhodococcus, Starmerella, Arthrobacter, Corynebacterium and / or Candida, for example those produced by Rhodococcus erythropolis, Nocardia farcinica and / or Candida bombicola (also known as Starmerella bombicola). Sophorolipids comprise a sophorose residue. Examples of suitable sophorolipids may include those produced by species of Candida, Starmerella and / or Cutaneotrichosporon, for example those produced by Candida sphaerica, Starmerella bombicola and / or Cutaneotrichosporon mucoides. Suitable sophorolipids may exist in the “lactonic” form wherein a fatty acid residue is bonded separately to each ring of the sophorose residue to form a lactonic macrocycle. When the fatty acid residue is not bonded to a sophorose residue this may be known as the “acidic” form. Suitable sophorolipids may have a molar ratio of acidic to lactonic form in the range 99:1 to 1:99, for example in the range 50:50 to 60:40 or in the range 50:50 to 40:60. Suitable sophorolipids may have a molar ratio of acidic to lactonic form of 70:30 or of 30:70. Suitably, greater than 60%, for example greater than 70%, preferably greater than 80%, more preferably greater than 90%, of the sophorolipids may comprise an unsaturated fatty acid and / or fatty alcohol residue. Mannosylerythritol lipids comprise a mannose residue and an erythritol residue, preferably joined by an ether bond. Examples of suitable mannosylerythritol lipids may include those produced by species of Pseudozyma and / or Ustilago, for example Pseudozyma aphidis or Pseudozyma antarctica. For compositions of the second and third embodiments of the first aspect, the one or more biosurfactants may suitably be selected from one or more of a lipopeptide, a phospholipid and a polymeric biosurfactant. The composition of the first, second or third embodiment of the first aspect may comprise one or more lipopeptides. Lipopeptides comprise one or more peptide residues in addition to the one or more fatty acid and / or fatty alcohol residues. The one or more peptide residues may be cyclic peptide residues. Suitable lipopeptides may include surfactins, lichenysins, and / or those produced by Pseudomonas azotoformans, Bacillus velezensis, Bacillus pseudomycoides, Virgibacillus salaries, Bacillus cereus, Bacillus pumilius or Halomonas species. Surfactins may be produced by Bacillus species, such as B. subtillis or B. nealsonii. Lichenysins may be produced by Bacillus species, such as B. licheniformis. For example, in the composition of the first, second or third embodiment of the first aspect the one or more biosurfactants may be selected from one or more of surfactin and lichenysin. The composition of the first, second or third embodiment of the first aspect may comprise one or more phospholipids. Phospholipids comprise one or more phosphate groups in addition to the one or more fatty acid and / or fatty alcohol residues. Phospholipids may further comprise a linker group joining the one or more phosphate groups and the one or more fatty acid and / or fatty alcohol residues. Suitable linkergroups may for example comprises an alcohol residue such as glycerol or sphingosine. Suitable phospholipids include those produced by species of Acinetobacter and / or Acidithiobacillus, for example Acidithiobacillus thiooxidans. The composition of the first, second or third embodiment of the first aspect may comprise one or more polymeric biosurfactants. Polymeric biosurfactants are biopolymers (e.g. polysaccharides, polypeptides) and suitably comprise fatty acid and / or fatty alcohol residues. Suitable polymeric biosurfactants include cellulose, guar, diutan, starch, chitin, chitosan, glycogen, xanthan, dextran, dextrin, welan, gellan, pullulan, pectin, scleroglucan, schizophyllan, levan, locust bean gum, peptidoglycan, tara, konjak, tamarind, starch, karaya, tragacanth, carrageenan, glycan, succinoglycan, glucan, scleroglucan, maltodextrin, cyclodextrin, inulin, alginates, amylose, amylopectin, liposan, rufisan, emulsan, lipomanan and / or alasan. Polymeric biosurfactants may include those produced by species of Candida and / or Acinetobacter, for example Candida lipolytica, Acinetobacter Iwoffi and / or Acinetobacter radioresistens. For example, in the composition of the first, second or third embodiment of the first aspect the one or more biosurfactants may be selected from one or more of liposan, rufisan, emulsan and alasan. For example, in the composition of the first embodiment of the first aspect the one or more biosurfactants may be selected from one or more of a rhamnolipid, a trehalolipid, a sophorolipid, a mannosylerythritol lipid, surfactin, lichenysin, liposan, rufisan, emulsan and alasan. Suitable biosurfactants may be those produced by species of Pseudomonas, Lysinibacillus, Serratia, Nocardia, Rhodococcus, Candida, Starmerella, Cutaneotrichosporon, Pseudozyma, Meyerozyma, Saccharomyces, Marinobacter, Bacillus, Lactobacillus Virgibacillus, Halomonas, Thiobacillus, Acidithiobacillus, Klebsiella, Alcanivorax, Arthrobacter, Rhodotorula, Tsukamurella, Ustilago, Sphingomonas, Mycobacterium, Streptomyces, Gluconobacter, Aspergillus and / or Acinetobacter. The biosurfactants that are produced by a specific micro-organism may vary depending on the feedstock used and other variables in the growth conditions (e.g. temperature, pH, agitation and dissolved oxygen). Preferably, feedstocks comprise carbohydrates and / or lipids. Preferred lipid feedstocks are in the form of triglycerides. The feedstocks may comprise agricultural and / or industrial waste, for example vegetable oils, animal or vegetable fats, cooking oil waste, whey, glycerol, and / or combinations thereof. Biosurfactants suitable for the invention are preferably produced by micro-organisms from feedstock comprising carbohydrate and one or more lipids. More preferably, they are produced from feedstock comprising carbohydrate and one or more of vegetable oils (for example rapeseed, palm, sunflower, corn, soya and / or safflower oils), animal fats and vegetable fats. Suitable biosurfactants may be recovered from the fermentation broth before use by known recovery methods. For example, the biosurfactants may be recovered by precipitation, filtration (including ultrafiltration), adsorption to solid supports, centrifugation, chromatography (e.g. ionexchange chromatography), foam fractionation, liquid-liquid extraction, and / or gravity separation (decanting). Suitable biosurfactants may be used as crude extracts, or they may undergo further purification and / or derivatisation before use. Where biosurfactants are further purified, this may involve one or more purification techniques available to the skilled person, for example chromatographic techniques, ultrafiltration or washing with a suitable solvent (which solvent may be polar or non-polar). Where biosurfactants are further derivatised, this may comprise derivatisation of the fatty acid and / or fatty alcohol residues. Where the fatty acid or fatty alcohol residue has an unsaturated alkyl group, suitable methods for derivatisation of the fatty acid or fatty alcohol residue include mild reductive, strong reductive or oxidative ozonolysis with sodium periodate (resulting in a dialdehyde, diol or diacid respectively); dihydroxylation, for example with OsO4; epoxidation, for example with m-chloroperoxybenzoic acid; reduction, for example with H2 on a Pd / C catalyst; ring opening metathesis; treatment with HBr; or mono-hydroxylation, for example by hydroboration with an oxidative work-up. When the biosurfactant is a glycolipid, the carbohydrate residue may be derivatised at the alcohol groups by esterification (e.g. with an anhydride), carboxymethylation (e.g. with an a-chloro acid), oxidation (to e.g. aldehyde or carboxylic acid), reaction with a non-ionic epoxide (e.g. ethylene oxide, propylene oxide), reaction with a cationic epoxide (e.g. glycidyltrimethyl ammonium chloride). The carbohydrate residue may be further derivatised by oxidative ring opening (e.g. with a periodate) resulting in a dialdehyde. Derivatives of biosurfactants comprising aldehyde groups may be further derivatised, for example to alcohols, carboxylic acids, esters, amides, imines and / or amines. Derivatives of biosurfactants comprising carboxylic acid groups may be further derivatised, for example to esters and / or amides. Derivatives of biosurfactants comprising 1,2-diol groups may be further derivatised, for example by C-C bond cleavage with periodate or peroxide, or reaction with an aldehyde. The cleansing composition of the first aspect comprises one or more non-biological surfactants. The term “non-biological surfactant” is used herein to refer to a surfactant which is not a biosurfactant, suitably a surfactant that is not a product of a fermentation process. References herein to one or more non-biological surfactants include mixtures of different non-biological surfactants when more than one non-biological surfactant is used. The one or more non-biological surfactants may be synthetic detergents, also known as “syndets”. Non-biological surfactants may include anionic, non-ionic, cationic and / or amphoteric surfactants. Any suitable non-biological surfactant(s) may be used provided that the conditions of the first aspect are fulfilled. Thus, in the first and third embodiments of the first aspect, the non-biological surfactant may be any suitable non-biological surfactant which is not a taurate surfactant, and in the second embodiments of the first aspect, the non-biological surfactant may be any suitable non-biological surfactant. References herein to a taurate surfactant are intended to mean any non-biological surfactant that comprises a taurate group (including an acyl taurate group or a salt thereof). Thus, when the cleansing composition does not comprise a taurate surfactant, the cleansing composition does not include any non-biological surfactants that comprise a taurate group. For cleansing compositions of the first and third embodiments of the first aspect, the one or more non-biological surfactants may be selected from one or more of an anionic surfactant which is not a taurate surfactant, a non-ionic surfactant, a cationic surfactant and an amphoteric surfactant, suitably the one or more non-biological surfactants may be selected from one or more of an anionic surfactant which is not a taurate surfactant, an amphoteric surfactant and a non-ionic surfactant, more preferably an anionic surfactant which is not a taurate surfactant and a non-ionic surfactant. Preferably, in such cleansing compositions, the one or more non-biological surfactants may be selected from one or more of a sulfonate surfactant, a sulfate surfactant, an isethionate surfactant, an acyl amino acid surfactant (e.g. an acyl sarcosinate, an acyl alaninate, an acyl glycinate or an acyl glutamate), a lactylate surfactant, an aromatic ester, a glycerol ester, an alkyl glucoside and a fatty alcohol. In cleansing compositions of the first or third embodiment of the first aspect, it is especially preferred for the one or more non-biological surfactants to be selected from one or more of a sulfonate surfactant, a sulfate surfactant, an isethionate surfactant, a lactylate surfactant, an aromatic ester, a glycerol ester, an alkyl glucoside and a fatty alcohol. In cleansing compositions of the first or third embodiment of the first aspect, it is especially preferred for the one or more non-biological surfactants to be selected from one or more of an alkyl glucoside, an acyl amino acid surfactant (such as an acyl sarcosinate), a lactylate surfactant, a sulfonate surfactant, an isethionate surfactant, an amphoacetate (for example an alkylamphoacetate) and an alkylamidopropyl betaine (for example cocamidopropyl betaine). For cleansing compositions of the first or third embodiment of the first aspect, a non-biological anionic surfactant which is not a taurate surfactant may be selected from one or more of a sulfate surfactant (such as a mono- or di-alkyl sulfate or alkyl ether sulfate), a sulfonate surfactant, a phosphate surfactant, a sulfosuccinate surfactant, a sulfoacetate surfactant, an isethionate surfactant, an amino acid surfactant (such as a glutamate, alaninate, sarcosinate or glycinate surfactant), and a lactylate surfactant. Particularly exemplary salts of the above, where applicable, are the sodium, potassium, ammonium, magnesium and triethanolamine salts. For compositions of the second embodiment of the first aspect, the one or more non-biological surfactants may be selected from one or more of an anionic surfactant, a non-ionic surfactant, a cationic surfactant and an amphoteric surfactant. Suitably, in such cleansing compositions, the non-biological surfactants may be selected from one or more of an anionic, an amphoteric and a non-ionic surfactant, more preferably an anionic surfactant and a non-ionic surfactant. For example, for compositions of the second embodiment of the first aspect, the one or more non-biological surfactants may preferably be selected from one or more of a sulfonate surfactant, a sulfate surfactant, an isethionate surfactant, a lactylate surfactant, an acyl amino acid surfactant (e.g. an acyl sarcosinate, an acyl alaninate, an acyl glycinate or an acyl glutamate), an aromatic ester, a glycerol ester, an alkyl glucoside and a fatty alcohol. Cleansing compositions of the first, second and third embodiments of the first aspect may comprise one or more non-biological anionic surfactants which are not taurate surfactants. Where the non-biological surfactants include one or more sulfate surfactants, these may suitably be selected from one or more of an alkali metal salt of a mono- or di-alkyl sulfate and / or a mono-or di-alkyl ether sulfate, such as sodium lauryl sulfate, sodium coco sulfate and / or sodium lauryl ether sulfate (sodium laureth sulfate). Where the non-biological surfactants include one or more sulfonate surfactants, these may suitably be selected from one or more of an alkyl sulfonate, an alkyl aryl sulfonate, a primary alkane disulfonate, an alkene sulfonate, a hydroxyalkane sulfonate, an alkyl glyceryl ether sulfonate, an alpha-olefin sulfonate, a sulfonate of an alkylphenolpolyglycol ether, an alkyl sulfosuccinate, an alkyl ether sulfosuccinate, a sulfoacetate, and salts thereof. The sulfonate surfactants are suitably alkali metal salts of alkyl sulfonates, alkyl aryl sulfonates and / or alphaolefin sulfonates. Preferred sulfonates include alpha-olefin sulfonates such as sodium C14-C16 olefin sulfonate. Examples of suitable sulfate and sulfonate surfactants include alkyl glyceryl ether sulfonate, ammonium lauryl sulfate, ammonium laureth sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, lauric monoglyceride sodium sulfate, sodium lauryl sulfate, sodium laureth sulfate, potassium lauryl sulfate, potassium laureth sulfate, ammonium cocoyl sulfate, ammonium lauroyl sulfate, sodium cocoyl sulfate, sodium lauroyl sulfate, potassium cocoyl sulfate, potassium lauryl sulfate, triethanolamine lauryl sulfate, triethanolamine lauryl sulfate, monoethanolamine cocoyl sulfate, monoethanolamine lauryl sulfate, sodium tridecyl benzene sulfonate, sodium dodecyl benzene sulfonate, and combinations thereof. Where the non-biological surfactants include one or more isethionate surfactants, they preferably include acyl isethionate surfactants, such as acyl alkyl isethionate surfactants. Suitable acyl isethionate surfactants are compounds of formula R10COOCHR11CHR12SO3'M+ wherein R10 represents an optionally substituted C4-C36 hydrocarbyl group; R11 and R12 each independently represent hydrogen or a C1-C4 alkyl and M+ represents a cation (such as an alkali metal cation, for example sodium, or an ammonium cation). Preferred acyl isethionate surfactants include sodium cocoyl isethionate, sodium lauroyl isethionate, sodium cocoyl methyl isethionate and sodium lauroyl methyl isethionate, and combinations thereof. Especially preferred isethionate surfactants are sodium cocoyl isethionate and sodium lauroyl methyl isethionate. Where the non-biological surfactants include one or more isethionate surfactants, they may preferably include acyl alkyl isethionate surfactants of formula R10COOCHR11CHR12SO3'M+ wherein R10 represents an optionally substituted C4-C36 hydrocarbyl group; one of R11 and R12 represents hydrogen and the other of R11 and R12 represents a C1-C4 alkyl group and M+ represents a cation (such as an alkali metal cation, for example sodium, or an ammonium cation). Preferred acyl alkyl isethionate surfactants include sodium cocoyl methyl isethionate and sodium lauroyl methyl isethionate, and combinations thereof. Suitable lactylate surfactants include alkali salts of acyl lactylate surfactants, such as sodium lauroyl lactylate. Such acyl lactylate surfactants may comprise one or more lactylate moieties, for example from one to three lactylate moieties. The acyl groups are preferably derived from fatty acids. Suitable acyl amino acid surfactants include alkali salts of acyl amino acid surfactants. Suitable acyl amino acid surfactants preferably comprise at least one amino acid residue and at least one fatty acid residue. The amino acid residues may be synthetic or biologically derived. Preferred acyl amino acid surfactants include one or more of an acyl sarcosinate, an acyl alaninate, an acyl glycinate and an acyl glutamate. Suitable acyl glycinates include cocoamphocarboxyglycinate; tallowamphocarboxygycinate; capryloamphocarboxyglycinate, oleoamphocarboxyglycinate, bis-2-hydroxyethyl tallow glycinate; lauryl amphoglycinate; tallow polyamphoglycinate; coco amphoglycinate; oleic polyamphoglycinate; / V-C10 / 12 fatty acid amidoethyl- / V-(2-hydroxyethyl)-glycinate; A / -Ci2 / is-fatty acid amidoethyl-N-(2-hydroxyethyl)- glycinate; dihydroxyethyl tallow gycinate, and combinations thereof. Suitable acyl sarcosinates include sodium lauroyl sarcosinate. Cleansing compositions of the first, second and third embodiments of the of the first aspect may comprise one or more non-biological non-ionic surfactants. Suitable non-ionic non-biological surfactants may include alcohol alkoxylate surfactants (such as alcohol ethoxylates, alcohol propoxylates, and ethylene oxide / propylene oxide copolymer derived surfactants), aliphatic esters, aromatic esters, sugar esters, (especially sorbitan esters), glycerol esters including glycerol partial esters and glycerol triesters, fatty alcohols (such as cetearyl alcohol, lauryl alcohol, stearyl alcohol, behenyl alcohol), alkanolamides and alkyl glucosides. Preferred non-ionic surfactants for use herein are fatty alcohols, aromatic esters, glycerol esters and alkyl glucosides, especially alkyl glucosides. Suitable alkyl glucosides comprise one or more glucose moieties and an alkyl or alkenyl group. Where an alkyl glucoside comprises more than one glucose moieties, these are preferably present as an oligomer connected by glycosidic bonds. Suitable alkyl glucosides may comprise from 1 to 10 glucose moieties, preferably from 1 to 3. Suitable alkyl glucosides comprise an alkyl or alkenyl group having from 4 to 24 carbon atoms, for example decyl glucoside, lauryl glucoside, cocoyl glucoside, capryl glucoside or caprylyl glucoside, and combinations thereof. Cleansing compositions of the first, second and third embodiments of the of the first aspect may comprise one or more non-biological cationic surfactants. Suitable non-biological cationic surfactants may include quaternary ammonium compounds (particularly trimethyl quaternary compounds), phosphonium quaternary ions and polymeric cationic surfactants (such as polyquaternium-7, polyquaternium-10, polyquaternium-11, guar hydroxypropyltrimonium chloride, and hydroxypropyl guar hydroxypropyltrimonium chloride). Cleansing compositions of the first, second and third embodiments of the of the first aspect may comprise one or more non-biological amphoteric or zwitterionic surfactants. Suitable non-biological amphoteric surfactants for use in compositions of the first aspect of the invention include those based on fatty nitrogen derivates and those based on betaines. Suitable non-biological amphoteric or zwitterionic surfactants may be selected from betaines (for example alkyl betaines), alkylamidopropyl betaines (for example cocamidopropyl betaine), alkylamidopropyl hydroxy sultaines, amphoacetates (for example alkylamphoacetates), amphodiacetates (for example alkylamphodiacetates), alkyl propionates, alkylamphodipropionates, alkylamphopropionates, alkyliminodipropionates and alkyliminodiacetate. Cocamidopropyl betaine is preferred. Non-biological amphoteric or zwitterionic surfactants for use in compositions of the first aspect may include those which have an alkyl or alkenyl group of 7 to 22 carbon atoms and comply with an overall structural formula: O R8 R7^C-NH(CH2)m^N-X-Y“ R9 where R7 is alkyl or alkenyl of 7 to 22 carbon atoms; R8 and R9 are each independently alkyl, hydroxyalkyl or carboxyalkyl of 1 to 6 carbon atoms; m is 2 to 4; n is 0 or 1; X is alkylene of 1 to 6 carbon atoms optionally substituted with hydroxyl; and Y is -CO2 or-SOs. Non-biological amphoteric or zwitterionic surfactants may include simple betaines of formula: R8 R7—N—CH2CO2_ R9 and amido betaines of formula: O R8 7 II l+ R7-C—NH(CH2)m—N—CH2CO2- R9 where m is 2 or 3. In both formulae R7, R8 and R9 are as defined previously. R7 may, in particular, be a mixture of C12 and C14 alkyl groups derived from coconut so that at least half, preferably at least three quarters, of the groups R7 has 10 to 14 carbon atoms. R8 and R9 are preferably methyl. Non-biological amphoteric or zwitterionic surfactants may include sulfobetaines of formula: R8 R7-N—(CH2)3SO3-R9 O R8 R7-C-NH(CH2)m—N—(CH2)3SO3- R9 where m is 2 or 3, or variants of these in which -(CH2)3SO3_ is replaced by OH —CH2-CH-CH2SO3_ where R7, R8 and R9 in these formulae are as defined previously. Non-biological amphoteric or zwitterionic surfactants may include amphoacetates and diamphoacetates. Amphoacetates generally conform to the following formula: R10CONHCH2CH2N—CH2CH2OH CH2COO“M+ Diamphoacetates generally conform to the following formula: ch2coo m+ I R10CONHCH2CH2N-CH2CH20-CH2COO m+ where R10 is an aliphatic group (such as an alkyl group) of 8 to 22 carbon atoms and M+ is a cation such as sodium, potassium, ammonium, or substituted ammonium. Suitable amphoacetate and amphodiacetate surfactants include lauroamphoacetate (for example sodium lauroamphoacetate); lauroamphodiacetate (for example sodium lauroamphodiacetate); cocoamphoacetate (for example sodium cocoamphoacetate); cocoamphodiacetate (for example disodium cocoamphodiacetate); capryloamphodiacete (for example disodium capryloamphodiacete); and wheatgermamphodiacetate (for example disodium wheatgermamphodiacetate). Suitable betaine surfactants include alkylamido betaine; alkyl betaine, C12 / 14 alkyldimethyl betaine; cocoamidopropylbetaine; tallow bis(hydroxyethyl) betaine; hexadecyldimethylbetaine; cocodimethylbetaine; alkyl amido propyl sulfo betaine; alkyl dimethyl amine betaine; coco amido propyl dimethyl betaine; alkyl amido propyl dimethyl amine betaine; cocamidopropyl betaine; lauryl betaine; laurylamidopropyl betaine, cocamido betaine, lauryl amido betaine, alkyl amino betaine; alkyl amido betaine; coco betaine; lauryl betaine; diemethicone propyl PG-betaine; oleyl betaine; N-alkyldimethyl betaine; coco biguamide derivative, Cs amido betaine; C12 amido betaine; lauryl dimethyl betaine; alkylamidopropyl betaine; amido betaine; alkyl betaine; cetyl betaine; oleamidopropyl betaine; isostearamidopropyl betaine; lauramidopropyl betaine; 2-alkyl- / V-carboxymethyl- / V-hydroxyethyl imidazolinium betaine; 2-alkyl- / V-carboxyethyl- / V-hydroxyethyl imidazolinium betaine; 2-alkyl- / V-sodium carboxymethyl- / V-carboxymethyl oxyethyl imidazolinium betaine; A / -alkyl acid amidopropyl-A / ,A / -dimethyl-A / -(3-sulfopropyl)-ammonium-betaine; / V-alkyl- / V, / V-dimethyl- / V-(3-sulfopropyl)-ammonium-betaine; cocodimethyl betaine; apricotamidopropyl betaine; isostearamidopropyl betaine; myristamidopropyl betaine; palmitamidopropyl betaine; alkamidopropyl hydroxyl sultaine; cocamidopropyl hydroxyl sultaine; undecylenamidopropyl betaine; cocoamidosulfobetaine; alkyl amido betaine; C12 / 18 alkyl amido propyl dimethyl amine betaine; lauryldimethyl betaine; ricinol amidobetaine; tallow aminobetaine. Preferred amphoteric surfactants include alkyl betaines and amphoacetates, such as sodium cocoamphoacetate and coco betaine. In any of the first, second or third embodiments of the first aspect, the one or more non-biological surfactants may preferably be selected from one or more of an acyl amino acid surfactant (especially an acyl sarcosinate), a lactylate surfactant, an alkyl glucoside, an amphoacetate, an alkylamidopropyl betaine, an alpha-olefin sulfonate and an isethionate surfactant. Most preferably, the one or more non-biological surfactants may be selected from one or more of an amphoacetate (especially sodium cocoamphoacetate), an alpha-olefin sulfonate (especially sodium C14-C16 olefin sulfonate) and an acyl alkyl isethionate (especially sodium lauroyl methyl isethionate or sodium cocoyl methyl isethionate). The combination of surfactants used in the cleansing compositions may be free of alkoxylated compounds which could lead to the presence of 1,4-dioxane; or sulfate surfactants which can lead to skin and ocular irritation; or linear and / or branched alkylbenzene sulfonates which are derived from petrochemical sources. The combination of surfactants used in the cleansing compositions may be free of alkoxylated compounds and free of sulfate surfactants and free of linear and / or branched alkylbenzene sulfonates. Where the composition of the first aspect comprises two or more non-biological surfactants, the composition preferably comprises one or more alkyl glucosides and one or more acyl lactylates. For example, the one or more alkyl glucosides and one or more acyl lactylates may be present in a weight ratio of from 1:1 to 10:1. The first embodiment of the first aspect preferably comprises one or more biosurfactants selected from one or more of a rhamnolipid, a trehalolipid, a sophorolipid, a mannosylerythritol lipid, surfactin, lichenysin, liposan, rufisan, emulsan and alasan and one or more non-biological surfactants selected from one or more of a sulfonate surfactant, a sulfate surfactant, an isethionate surfactant, a lactylate surfactant, an aromatic ester, a glycerol ester, an alkyl glucoside and a fatty alcohol. The second embodiment of the first aspect preferably comprises one or more biosurfactants selected from one or more of a lipopeptide, a phospholipid and a polymeric biosurfactant and one or more non-biological surfactants selected from one or more, a sulfonate surfactant, a sulfate surfactant, an isethionate surfactant, a lactylate surfactant, an acyl amino acid surfactant (e.g. an acyl sarcosinate, an acyl alaninate, an acyl glycinate or an acyl glutamate), an aromatic ester, a glycerol ester, an alkyl glucoside and a fatty alcohol. Suitably, the first embodiment of first aspect may comprise a sophorolipid and an alkyl glucoside, preferably wherein the weight ratio of sophorolipid to alkyl glucoside is from 1:1 to 8:1, such as from 2:1 to 6:1, most preferably 3:1 to 5:1. Suitably, the composition of the first embodiment of the first aspect may comprise a sophorolipid, an alkyl glucoside and an acyl lactylate. The weight ratio of the one or more biosurfactants to the one or more non-biological surfactants may be any suitable ratio. For example, the weight ratio of the one or more biosurfactants to the one or more non-biological surfactants may be from 12:1 to 1:12, such as from 9:1 to 1:9, for example from 4:1 to 1:4, or from 7:3 to 3:7. The weight ratio of the one or more biosurfactants to the one or more non-biological surfactants may be from 9:1 to 1:9, preferably from 1.5:1 to 1:9, most preferably from 1.5:1 to 3:7. Suitably, the one or more non-biological surfactants are present in the composition in an equal or greater amount than the one or more biosurfactants, by weight. The cleansing composition suitably comprises the one biosurfactants and one or more non-biological surfactants in an amount that is suitable for providing cleansing, for example to a natural or biological surface. For example, the combined (total) amount of the one or more biosurfactants and the one or more non-biological surfactants present in the cleansing composition may be from 0.01 to 20 wt%, such as from 0.01 to 10 wt% or from 0.01 to 5 wt%, preferably from 0.1 to 2 wt% or 0.1 to 1.5 wt%, for example from 0.1 to 1 wt%, based on the total weight of the composition. The cleansing composition of the first aspect may be in the form of a concentrate composition. Thus, there may be provided a concentrate composition comprising one or more non-biological surfactants and one or more biosurfactants, provided that the concentrate composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. The combined (total) amount of the one or more non-biological surfactants and one or more biosurfactants in the concentrate composition is typically greater than 20 wt%, such as from 21 to 85 or from 25 to 75 wt%, or preferably from 30 to 75 wt% based on the total weight of the concentrate composition. The concentrate composition may be diluted with a suitable solvent (such as a solvent disclosed herein such as water) to produce a cleansing composition which is ready to use for cleansing. A concentrate composition may provide benefits in use, such as reduced environmental impact of transport and reduced cost of storage. The one or more biosurfactants may be present in the cleansing composition of the first aspect in an amount of from 0.01 to 10 wt%, such as from 0.01 to 5 wt% based on the total weight of the composition and / or the one or more non-biological surfactants may be present in an amount of from 0.01 to 10 wt%, such as from 0.01 to 5 wt% based on the total weight of the composition. The cleansing composition may further comprise a solvent. Suitable solvents and amounts thereof will be known to persons skilled in the art. For example, suitable solvents include water, alcohols such as ethanol or isopropanol, glycols such as ethylene glycol or propylene glycol, terpenes such as limonene, and mixtures thereof. The cleansing composition of the first aspect may comprise at least 80 wt% of solvent, for example at least 95 wt% solvent, based on the total weight of the composition. The cleansing composition may comprise at least 97 wt% of solvent. When the composition of the first aspect is a concentrate composition, the concentrate composition may comprise less than 80 wt% of a suitable solvent, such as from 15 to 79 or from 25 to 75 wt%, or preferably from 25 to 70 wt% of a suitable solvent based on the total weight of the concentrate composition Preferably, the cleansing composition of the first aspect is an aqueous composition. Therefore the cleansing composition may further comprise water. The cleansing composition of the first aspect may comprise at least 80 wt% of water, for example at least 95 wt% of water, based on the total weight of the composition. The cleansing composition may comprise at least 97 wt% of water. When the composition of the first aspect is a concentrate composition, the concentrate composition may comprise less than 80 wt% of water, for example from 21 to 85 or from 25 to 75 wt%, or preferably from 30 to 75 wt% of water based on the total weight of the concentrate composition. The cleansing composition of the first aspect is preferably a liquid composition. The cleansing composition may consist essentially of one or more biosurfactants, one or more non-biological surfactants and water, i.e. provided that the one or more biosurfactants and the one or more non-biological surfactants meet the requirements of the first aspect. The cleansing composition may consist of one or more biosurfactants, one or more non-biological surfactants and water, i.e. provided that the one or more biosurfactants and the one or more non-biological surfactants meet the requirements of the first aspect. The cleansing composition (for example of the first embodiment of the first aspect) may consist essentially of one or more sophorolipids, one or more non-biological surfactants and water, provided that the composition does not comprise a taurate surfactant. The cleansing composition (for example of the first embodiment of the first aspect) may consist of one or more sophorolipids, one or more non-biological surfactants and water, provided that the composition does not comprise a taurate surfactant The cleansing composition may consist essentially of one or more biosurfactants, one or more non-biological anionic surfactants, one or more non-biological non-ionic surfactants and water, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. The cleansing composition may consist of one or more biosurfactants, one or more non-biological anionic surfactants, one or more non-biological non-ionic surfactants and water, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. The cleansing composition (for example of the first embodiment of the first aspect) may consist essentially of one or more sophorolipids, one or more non-biological anionic surfactants, one or more non-biological non-ionic surfactants and water, provided that the composition does not comprise a taurate surfactant. The cleansing composition (for example of the first embodiment of the first aspect) may consist of one or more sophorolipids, one or more non-biological anionic surfactants, one or more non- biological non-ionic surfactants and water, provided that the composition does not comprise a taurate surfactant The cleansing composition may consist essentially of one (i.e. a single) biosurfactant, one non-biological surfactant and water, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. For example, the cleansing composition (for example of the first or third embodiment of the first aspect) may consist essentially of one (i.e. a single) biosurfactant, one non-biological surfactant and water, provided that the composition does not comprise a taurate surfactant. For example the cleansing composition (for example of the first embodiment of the first aspect) may consist essentially of one sophorolipid, one non-biological surfactant which is not a taurate and water. The cleansing composition may consist of one biosurfactant, one non-biological surfactant and water, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. For example, the cleansing composition (for example of the first or third embodiment of the first aspect) may consist of one biosurfactant, one non-biological surfactant and water, provided that the composition does not comprise a taurate surfactant. For example the cleansing composition (for example of the first embodiment of the first aspect) may consist of one sophorolipid, one non-biological surfactant which is not a taurate and water. The cleansing composition may consist essentially of one biosurfactant, two non-biological surfactants and water, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. For example, the cleansing composition (for example of the first or third embodiment of the first aspect) may consist essentially of one biosurfactant, two non-biological surfactants and water, provided that the composition does not comprise a taurate surfactant. For example the cleansing composition may consist essentially of one biosurfactant (such as one sophorolipid), one alkyl glucoside, one acyl lactylate and water. The cleansing composition may consist of one biosurfactant, two non-biological surfactants and water, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid. For example, the cleansing composition (for example of the first embodiment of the first aspect) may consist of one biosurfactant, two non-biological surfactants and water, provided that the composition does not comprise a taurate surfactant. For example the cleansing composition may consist of one biosurfactant (such as one sophorolipid), one alkyl glucoside, one acyl lactylate and water. The cleansing composition of the first aspect may further comprise one or more additional components. Suitable additional components and amounts thereof will be known to persons skilled in the art. For example, the one or more additional components may be selected from a pH modifier, a preservative, a fragrance and an antibacterial agent. Where the cleansing composition comprises such additional components, these may be present in any suitable amount, such as an amount of less than 5 wt%, for example less than 1 wt%, preferably less than 0.1 wt%, based on the total weight of the composition. For example, when present, the additional components, may be present in an amount of from 0.001 to less than 5 wt%, for example from 0.001 to 1.5 wt%, such as from 0.001 to 0.9 wt% or from 0.001 to 0.095 wt%, based on the total weight of the composition. The cleansing composition may comprise a pH modifier. Suitable pH modifiers will be known to persons skilled in the art and include lactic acid, citric acid, potassium hydroxide, sodium hydroxide, sodium carbonate, triethanolamine and sodium gluconate. A preferred pH modifier is citric acid. The cleansing composition of the first aspect may have a pH from 3 to 9, for example from 4 to 7. Preferably, the cleansing composition has a pH from 5 to 6. Such a pH may improve compatibility with preservatives, such as sodium benzoate, while maintaining effective detergent activity. Most preferably, the cleansing composition has a pH from 5 to 5.5. Suitable preservatives will be known to the person skilled in the art and include sodium benzoate, potassium sorbate, sorbic acid, phenoxyethanol, benzyl alcohol, DMDM hydantoin, imidazolidinyl urea, methylchloroisothiazolinone, methylisothiazolinone, salicylic acid, benzyl salicylate, methylparaben, propylparaben and caprylyl glycol. A preferred preservative for use herein is sodium benzoate. Suitable antibacterial agents include cationic compounds such as alkyl dimethyl benzyl ammonium chlorides; carboxylic acids such as acetic acid, citric acid, benzoic acid, lactic acid [L-lactic acid], salicylic acid, maleic acid; phosphoric acid; and essential oils such as those derived from bay, cinnamon and clove. The cleansing composition of the first aspect is preferably low foaming. By low foaming, we mean that the composition has a reduced tendency to produce a foam (or foaming tendency), for example, when shaken. A foam herein is used to refer to a series of gas pockets trapped within a system of thin films of a liquid, such as the cleansing composition of the first aspect. A foam layer will typically form on top of a composition due to its lower density. A common method to determine a composition’s foaming tendency is to subject the composition to a reproducible agitation and measure the resulting foam layer height. Herein, a method may be used to determine the foaming tendency of a composition whereby 3 mL of a composition comprising a total of 1 wt% of surfactants is placed into a 15 mL vial. The vial is sealed and manually shaken 20 times and then the height of resultant foam layer is measured immediately (to provide an initial foam layer height). Preferably a composition of the first aspect will produce an initial foam layer height of 3 mm or less when subjected to this method. Alternatively, the foaming tendency of a composition may be determined by use of a specialised foam tester, such as the SITA foam tester R-2000. Standard methods for testing foaming tendency include ASTM D3601-88(2007) (bottle test) and DIN 53901-2 (Ross-Miles method). The cleansing composition of the first aspect may be substantially clear. The composition is preferably clear to the human eye. A clear composition may be more appealing to consumers. A clear composition may have a high level of transmittance and / or a low level of turbidity. Methods for measuring transmittance and turbidity will be known to the skilled person. The cleansing composition of the first aspect suitably has a viscosity similar to that of water. A water-like viscosity can be beneficial in processing the composition and improve application to a substrate for use. Simple comparison to a sample of water may be sufficient to measure the viscosity. Quantitative methods for measuring viscosity will be known to the skilled person, for example the viscosity may be measured using a Brookfield viscometer. The cleansing composition may have a viscosity of from 0.1 to 25 cP, preferably from 0.1 to 5 cP, measured at 20 °C. The cleansing composition of the first aspect may be suitable for personal cleaning. Thus, the cleansing composition of the first aspect may be a personal care cleansing composition. Preferably, the cleansing composition of the first aspect may be a sulfate-free personal care cleansing composition (i.e. free from sulfate surfactants). When the cleansing composition of the first aspect is a personal care cleansing composition, the one or more biosurfactants may be present in an amount of from 0.01 to 5 wt%, for example from 0.1 to 1 wt%, preferably from 0.2 to 0.8 wt% based on the total weight of the composition and / or the one or more non-biological surfactants may be present in an amount of from 0.01 to 5 wt%, for example from 0.1 to 1 wt%, preferably from 0.2 to 0.8 wt%, based on the total weight of the composition. Preferably the personal care cleansing composition comprises at least 80 wt% water, for example at least 95 wt% water, based on the total weight of the composition. The cleansing composition may comprise at least 97 wt% water. Suitably, the personal care cleansing composition of the present invention does not comprise alcoholic solvents such as ethanol and isopropanol. The personal care cleansing composition is preferably a liquid composition. The cleansing composition of the first aspect may provide a personal care composition comprising one or more biosurfactants and one or more non-biological surfactants, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid; wherein the composition is an aqueous composition; wherein the composition is free from sulfate surfactants; and wherein the total amount of the one or more biosurfactants and the one or more non-biological surfactants present in the cleansing composition is from 0.01 to 20 wt%, for example from 0.1 to 1 wt% based on the total weight of the composition. The cleansing composition of the first aspect may provide a personal care composition comprising one or more glycolipids and one or more non-biological surfactants, provided that the composition does not comprise a taurate surfactant; wherein the one or more non-biological surfactants are selected from one or more of an alkyl glucoside, an acyl amino acid surfactant (such as an acyl sarcosinate), a lactylate surfactant, a sulfonate surfactant, an isethionate surfactant, an amphoacetate (for example an alkylamphoacetate) and an alkylamidopropyl betaine (for example cocamidopropyl betaine); wherein the composition is an aqueous composition; wherein the composition is free from sulfate surfactants; and wherein the total amount of the one or more biosurfactants and the one or more non-biological surfactants present in the cleansing composition is from 0.01 to 20 wt%, for example from 0.1 to 1 wt% based on the total weight of the composition. The cleansing composition of the first aspect may provide a personal care composition comprising one or more glycolipids and one or more non-biological surfactants, provided that the composition does not comprise a taurate surfactant; wherein the one or more non-biological surfactants are selected from one or more of an alkyl glucoside, an amphoacetate, an alkylamido propylbetaine, an alpha-olefin sulfonate and an isethionate surfactant; wherein the composition is an aqueous composition; wherein the composition is free from sulfate surfactants; and wherein the total amount of the one or more biosurfactants and the one or more non-biological surfactants present in the cleansing composition is from 0.01 to 20 wt%, for example from 0.1 to 1 wt% based on the total weight of the composition. The composition of the first aspect may be suitable for household cleaning. Thus, the cleansing composition of the first aspect may be a household cleansing composition. The cleansing composition of the first aspect may be particularly suitable for use in dishwashing, for example manual dishwashing, preferably automatic dishwashing (also referred to as autodishwash). The cleansing composition may therefore be a rinse aid composition or an automatic dishwashing composition. Low foaming compositions are particularly desirable in auto-dishwash applications. Where the cleansing composition of the first aspect is a rinse aid composition, it is preferably a rinse aid composition for use in automatic dishwashing. The rinse aid composition is preferably a liquid composition. Where the cleansing composition of the first aspect is an automatic dishwashing composition, the automatic dishwashing composition is suitably in the form of a tablet, a powder, granules, flakes, a liquid, a gel, a paste, or a combination thereof. The automatic dishwashing composition may further comprise a builder. Suitable builders will be known to those skilled in the art. Suitably, the builder is present in an amount of from 15 to 70 wt% based on the total weight of the automatic dishwashing composition. A suitable builder may comprise a phosphorus-containing builder or a phosphorus-free builder. The builder is suitably present in an amount of from 15 to 60 wt% based on the total weight of the automatic dishwashing detergent composition. In some embodiments, the builder comprises a phosphorus-containing builder. The phosphorus-containing builder is suitably selected from phosphonates (such as HEDP (1-hydroxyethylidene-1,1-disphosphonic acid)), mono-phosphates, di-phosphates, tri-polyphosphates and oligomeric-polyphosphates. The phosphorus-containing builder is suitably present in an amount of from 15 to 60 wt% based on the total weight of the automatic dishwashing composition. Preferably, the builder comprises a phosphorus-free builder. The phosphorus-free builder suitably comprises a polycarboxylate, such as an aminocarboxylate. Suitable phosphorus-free builders include methylglycine diacetic acid (MGDA), N,N-dicarboxymethyl glutamic acid (GLDA), aspartic acid-N-monoacetic acid (ASMA), aspartic acid-N,N-diacetic acid (ASDA), aspartic acid-N-monopropionic acid (ASMP), iminodisuccinic acid (IDA), N-(2-sulfomethyl)aspartic acid (SMAS), N-(2-sulfoethyl)aspartic acid (SEAS), N-(2-sulfomethyl)glutamic acid (SMGL), N-(2-sulfoethyl)glutamic acid (SEGL), N-methyliminodiacetic acid (MIDA), a-alanine-N,N-diacetic acid (a-ALDA), b-alanine-N,N-diacetic acid (b-ALDA), serine-N,N-diacetic acid (SEDA), isoserine-N,N-diacetic acid (ISDA), phenylalanine-N,N-diacetic acid (PHDA), anthranilic acid-N,N-diacetic acid (ANDA), sulfanilic acid-N,N-diacetic acid (SLDA), taurine-N,N-diacetic acid (TUDA) and sulfomethyl-N,N-diacetic acid (SMDA), iminodisuccinic acid (IDS), (hydroxy)iminodisuccinic acid (HIDS), ethylenediamine-N,N’-disuccinic acid (EDDS), malonic acid, (ethylenedioxy)diacetic acid, maleic acid, diglycolic acid, tartaric acid, tartronic acid, fumaric acid, citric acid, homopolymers of acrylic acid, polyepoxysuccinic acids (PESAs), and salts, esters and derivatives thereof. Suitably, the salts are water-soluble. Preferably, the salts are alkali metal salts (such as sodium salts), alkanolamine salts, or ammonium salts. Preferably, the phosphorus-free builder comprises one or more of methylglycine diacetic acid (MGDA), N,N-dicarboxymethyl glutamic acid (GLDA), citric acid, or salts, esters or derivatives thereof. Preferably, the phosphorus-free builder comprises trisodium citrate. The automatic dishwashing composition may further comprise one or more of an anti-tarnishing agent, a pH control agent, a bleaching agent, a bleach activating agent, a silicate, a filler, a pearlescent agent, an anti-bacterial agent, a softening agent, a thickening agent, a stabilising agent, a defoaming agent, a bleach scavenging agent, a solvent or hydrotrope, a flow control agent, an enzyme, an enzyme stabilising agent, a solid suspending agent, an anti-redeposition agent, a dispersing agent, an anti-scaling agent, a colourant, a perfume, a dishwasher salt and a rinse aid. The automatic dishwashing composition may comprise a bleaching agent. Suitable bleaching agents may be selected from one or more of a peroxy bleaching agent and a halogen bleaching agent. The automatic dishwashing composition may comprise a bleach activating agent. Suitable bleach activating agents may be selected from one or more of a manganese compound, a cobalt (III) compound, or tetraacetyleneethylenediamine (TAED). Suitable manganese compounds include mononuclear compounds, such as manganese acetate or manganese oxalate, and dinuclear compounds, such as those disclosed in EP1741774. The automatic dishwashing detergent composition may comprise a filler. The filler may comprise an organic filler or an inorganic filler. Suitably, the filler does not comprise calcium or magnesium ions. Suitable fillers may be selected from one or more of sucrose esters, urea, sodium sulfate, sodium chloride, and potassium chloride. Preferably, the filler comprises sodium sulfate. The filler may be present in an amount of up to 60 wt%, such as from 10 to 30 wt%, based on the total weight of the automatic dishwashing composition. The automatic dishwashing composition may comprise a softening agent. Preferably, the softening agent comprises hydroxyethyl laurdimonium chloride. The automatic dishwashing detergent composition may comprise a thickening agent. The thickening agent may be selected from one or more of a clay, a cross-linked acrylic acid polymer, and a salt of polyacrylic acid. Examples of suitable thickening agents are described in US4,431,559; US4,511,487; US4,740,327; US4,752,409; US4,859,358; US4,836,948; US4,867,896; and GB2164350. When the automatic dishwashing additive comprises a thickening agent, the composition is suitably in the form of a liquid, a gel, ora paste. The thickening agent may comprise a clay. The clay may comprise a smectite clay selected from one or more of montmorillonite (bentonite), hectorite, saponite; silica, silica gel, and aluminosilicate. Commercially available synthetic smectite clays include Laponite (trade mark) supplied by Laporte Industries. Commercially available bentonite clays include Korthix H and VWH available from Combustion Engineering, Inc.; Polargel T available from American Colloid Co.; and Gelwhite clays (particularly Gelwhite GP and H) available from English China Clay. The thickening agent may comprise a cross-linked acrylic acid polymer. Suitable cross-linked acrylic acid polymers include those sold under the tradename "Carbopol", such as Carbopol 940 and 617. Suitably, the cross-linked acrylic acid polymer has a number average molecular weight of about 4,000,000 and the automatic dishwashing composition is in the form of a clear gel. The thickening agent may comprise a salt of polyacrylic acid. The salts of polyacrylic acid may be cross-linked. Suitably, the salt of polyacrylic acid suitably has a number average molecular weight of at least 300,000, such as from 300,000 to 6,000,000. The automatic dishwashing composition may comprise a stabilising agent. Suitable stabilising agents may be selected from one or more of a long-chain soap and a C12 to C18 sulfate, Laponite (trade mark), a metal oxide, a salt of a metal oxide, a compound comprising trivalent metal ions, and a water-soluble structuring chelant. When the automatic dishwashing composition comprises a stabilising agent, the composition is suitably in the form of a liquid, a gel, or a paste. Suitable long-chain calcium and sodium soaps and C12 to C18 sulfates are described in US3,956,158 and US4,271,030 and other suitable metal salts of long-chain soaps are described in US4,752,409. Suitable Laponite (trade mark) and metal oxides and their salts are described in US4,933,101. Such stabilising agents may be present in an amount of from 0.01 to 5 wt%, preferably from 0.01 to 2 wt% based on the total weight of the automatic dishwashing composition, preferably wherein the automatic dishwashing composition is in the form of a liquid. Compounds containing trivalent metal ions are suitably present in an amount of from 0.01 to 4 wt% based on the total weight of the automatic dishwashing composition. Laponite and / or watersoluble structuring chelants are suitably present in an amount of from 1 to 60 wt% based on the total weight of the automatic dishwashing composition. When the automatic dishwashing composition comprises a compound containing trivalent metal ions, the composition is suitably in the form of a gel. The automatic dishwashing composition may comprise a defoaming agent. The defoaming agent may comprise a silicone. The automatic dishwashing composition may comprise a bleach scavenging agent. Suitable bleach scavenging agents may be selected from one or more of sodium bisulphite, sodium perborate, a reducing sugar and a short-chain alcohol. The automatic dishwashing composition may comprise a solvent or hydrotrope. Suitable solvents and hydrotropes may be selected from one or more of ethanol, isopropanol, alkylbenzene sulfonates such as sodium xylene sulfonates, potassium cumenesulfonate, sodium cumenesulfonate, and sodium toluenesulfonate. Preferably, the solvent or hydrotrope comprises an alkylbenzene sulfonate. The automatic dishwashing composition may comprise an enzyme. Suitable enzymes may be selected from one or more of a protease (e.g., Alcalase (trade mark), Savinase (trade mark) and Esperase (trade mark) from Novo Industries A / S), amylases (e.g. Termamyl (trade mark) from Novo Industries A / S), a lipase (e.g., Lipolase (trade mark) from Novo Industries A / S)) and an oxidases. Suitably, the automatic dishwashing composition is provided in an automatic dishwashing product. The automatic dishwashing product may suitably be in the form of a tablet. The tablet may comprise a water-soluble coating. The tablet may suitably comprise a compartment comprising the automatic dishwashing composition, preferably in the form of a liquid. The tablet may comprise one or more other compartments which comprise one or more further additives. The one or more further additives may be in any suitable form, such as a powder or a liquid. Suitably, the tablet comprises two or more compartments and the compartments are divided by a water-soluble coating. The cleansing composition of the first aspect may be suitable for automotive cleaning. Thus, the cleansing composition of the first aspect may be an automotive cleansing composition. The cleansing composition of the first aspect may be suitably prepared by dilution of a concentrate as is common practise for one skilled in the art. In this case, dilution may be with any suitable solvent (such as a solvent as discussed herein, for example water) to produce a cleansing composition which is ready to use. The cleansing compositions of the first aspect suitably have a high total Renewable Carbon Index (RCI). The renewable carbon index (RCI) for a component is calculated according to ISO 16128-1:2016, wherein the number of carbon atoms derived from renewable carbon sources is divided by the total number of carbon atoms in a component. The total RCI of the cleansing composition is a weighted average of the RCI of each carbon-containing surfactant in the composition. The %RCI is obtained by multiplying the RCI by 100. Preferably, the total percentage RCI of the cleansing composition is at least 30%, preferably at least 40%, more preferably at least 50%, suitably at least 60%, preferably at least 70% or at least 80%. The total percentage RCI of the cleansing composition may be 100%. According to a second aspect of the invention, there is provided a cleansing article comprising a fibrous substrate impregnated with a cleansing composition of the first aspect. The cleansing composition may impregnate the fibrous substrate in the sense that it may enter into interstitial spaces within the substrate and / or surface features / indentations on the surface of the substrate. The fibrous substrate of the cleansing article may be at least partially saturated with the cleansing composition, preferably fully saturated, with the cleansing composition. By fully saturated we mean that the cleansing composition has impregnated the fibrous to the extent that it cannot hold substantially more of the cleansing composition. The fibrous substrate may be any substrate comprising fibres of material. The fibrous substrate may comprise any suitable fibres, such as natural fibres, synthetic fibres or a mixture thereof. Natural fibres typically comprise polysaccharides such as cellulose and / or starch. Suitable fibres include cotton, linen, silk, cellulose, starch, bamboo, coconut husk, sisal, sugarcane, baggase, awkara, plantain, banana, jute, hemp, musamba, wood pulp, rayon, bioplastic, polyester, polypropylene, polyamide and / or polyethylene. Preferably, the fibrous substrate of the cleansing article of the second aspect may comprise cotton, cellulose, bamboo, polyester, polypropylene, wood pulp and / or rayon. Said fibres are suitably formed into the substrate, for example in the form of a fabric or textile. The fibres may be formed by any suitable processes, such as spinning, weaving, carding, felting, compressing, and / or bonding by chemical, mechanical, heat or solvent treatment. The fibres may be non-woven. Preferably, the fibrous substrate is biodegradable, for example it may comprise naturally biodegradable materials such as bamboo, or biodegradable synthetic materials such as bioplastics. The substrate may conform to one or more industrial compostability standards such as EN13432 or ASTM 6400. The substrate may conform to one or more anaerobic biodegradability standards such as ISO 15985 or ASTM D5511. The substrate may conform to one or more aerobic biodegradability standards such as ISO 17556 or ASTM D5988. The cleansing article may be a wet wipe, also known as a moist towelette, such as a disinfectant wipe, a wipe for household surfaces, a toilet wet wipe, a baby wipe or a make-up removal wipe. The composition or article of the first or second aspects may be suitable for personal care, household cleaning and / or automotive detailing / valeting. The cleansing article of the second aspect may be suitable for personal cleaning. Thus, the cleansing article of the second aspect may be a personal care cleansing article. The cleansing article of the second aspect may be suitable for household cleaning. Thus, the cleansing article of the second aspect may be a household cleansing article. The cleansing article of the second aspect may be suitable for automotive cleaning. Thus, the cleansing article of the second aspect may be an automotive cleansing article. Personal care cleansing compositions or articles may include those for cosmetic use, sanitary use and / or use on infants. According to a third aspect of the invention, there is provided a method ofcleaning at least a portion of a surface, wherein the method comprises contacting the portion of the surface with the cleansing composition of the first aspect or the cleansing article of the second aspect. According to a fourth aspect of the invention, there is provided a use of a cleansing composition or cleansing article according to the first or second aspects to provide cleaning to at least a portion of a surface. Features of the cleansing composition or cleansing article in the third and fourth aspects are as disclosed herein in relation to the first and second aspects. The method of the third aspect or use of the fourth aspect of the present invention provide cleaning. Said cleaning may comprise at least the partial removal of a substance from the surface, preferably wherein the substance is an oily substance. The substance may be a form of soil or mixture of thereof. Suitable substances may include, for example, food, animal or human bodily fluids or egesta, oils, waxes, paints, cosmetics, dust, and the like. The substance may include human bodily fluids or egesta, such as urine, blood, faeces, perspiration and / or vomit. Suitably, the substance comprises a cosmetic composition such as foundation, mascara, lipstick, rouge, concealer, eye shadow or eyeliner. More preferably, the substance is a waterproof cosmetic composition. Waterproof cosmetic compositions are particularly challenging to remove, especially with aqueous cleansing compositions. The substance may be a cosmetic composition, preferably wherein the cosmetic composition is waterproof. The surface to which the method or use of the third or fourth aspects are applied may be a household surface or an automotive surface. Where the surface is a household surface it may include surfaces found in a house, such as kitchenware (for example cutlery, crockery, cookware and / or glassware), a work-top, sink, bath, oven, hob, refrigerator, shower, hard floor, window windowsill, toilet and / or toilet-seat. Where the surface is kitchenware, the method or use of the third or fourth aspects may be a method, or use in a method, of automatic dishwashing. Such a method may comprise placing the surface in an automatic dishwasher and contacting at least a portion of the surface with the composition of the first aspect. The composition of the first aspect may be contacted with at least a portion of the surface before a wash cycle (for example as part of a pre-treatment step), during a wash cycle and / or after a wash cycle (for example as part of a rinse step) of the automatic dishwasher. Where the cleansing composition is a rinse aid composition, it is preferably contacted with at least a portion of the surface after a wash cycle (for example as part of a rinse step). Where the cleansing composition is an automatic dishwashing composition, it is preferably contacted with at least a portion of the surface before and / or during a wash cycle. In such methods of automatic dishwashing, the composition may be diluted in the automatic dishwasher prior to contact with at least a portion of the surface. Where the surface is an automotive surface, it may include interior surfaces such as a dashboard, window interior, upholstery and / or a steering wheel, as well as exterior surfaces of the car. The surface to which the method or use of the third or fourth aspects are applied may be a natural or biological surface. Suitably, the surface is skin or hair, preferably where the skin or hair is human skin or hair. The human skin or hair may suitably be facial skin, eye brows, eye lashes and / or hair (for example, head hair or facial hair, preferably head hair). According to a fifth aspect of the invention, there is provided a method of forming a cleansing article according to the second aspect, the method comprising impregnating the fibrous substrate with the cleansing composition. Features of the cleansing article in the fifth aspect are as disclosed herein in relation to the second aspect. The method of the fifth aspect may further comprise removing excess cleansing composition, for example with a roller or scraper. The method of the fifth aspect may comprise applying an amount of the cleansing composition to the fibrous substrate. Any suitable amount may be applied, for example from 50 to 400 g ofcleansing composition per m2 of substrate. Preferably, from 100 to 300 g ofcleansing composition is applied per m2 of substrate. According to a sixth aspect of the invention, there is provided a kit comprising a cleansing composition according to the first aspect and a fibrous substrate to which the cleansing composition may be applied. The fibrous substrate may be as described in relation to any other aspect of the present invention. Features of the cleansing composition in the sixth aspect are as disclosed herein in relation to the first aspect. The kit of the sixth aspect may comprise instructions, for example instructions for the consumer to carry out the method of the fifth aspect. According to a seventh aspect of the invention, there is provided a product comprising the composition or cleansing article according to the first or second aspects and packaging for the cleansing composition orcleansing article. Features of the cleansing composition or cleansing article in the seventh aspect are as disclosed herein in relation to the first and second aspects. The invention will now be further described with reference to the following non-limiting examples. Examples Example 1 Compositions 1 to 13 were prepared by mixing of the surfactant components and dilution with deionised water as shown in Table 1. The pH of each composition was adjusted by addition of either citric acid (50 wt% solution) or NaOH (25 wt% solution) to a pH of 5.2. The sophorolipid was supplied as a 60 wt% active solution with an acid: lactone ratio of 70:30 and a pH of 7.5. Compositions 1 to 13 were tested for foam height according to the methods below. The results are shown in Table 1. Foam Testing The equipment used to conduct the foam tests was a 15 mL measuring vial with a numerical scale. Using an autopipette, 3.0 mL of each composition was added to the measuring vial. The vials were sealed and shaken manually 20 times. Images of the vials were taken and the resultant (i.e. initial) foam height was measured immediately in mm. A foam height of 3 mm or less was considered to be “low foaming”. Table 1 Composition Non-biological surfactant(s) Sophorolipid (wt% active) Non-biological surfactant (wt% active) Foam Height (mm) 1 Lauryl Glucoside [1] 0.9 0.1 1.0 2 Lauryl Glucoside [1] 0.5 0.5 2.0 3 Lauryl Glucoside [1] 0.1 0.9 1.0 4 Caprylyl / Capryl Glucoside [2] 0.9 0.1 1.0 5 Sodium Lauroyl Sarcosinate [3] 0.9 0.1 1.0 6 Sodium Lauroyl Sarcosinate [3] 0.5 0.5 2.0 7 Sodium Lauroyl Sarcosinate [3] 0.1 0.9 3.0 8 Sodium Cocoamphoacetate [4] 0.9 0.1 1.0 9 Sodium Cocoamphoacetate [4] 0.5 0.5 1.5 10 Sodium Cocoamphoacetate [4] 0.1 0.9 1.5 11 Sodium Decyl Glucoside and Sodium Lauroyl Lactylate [5] 0.9 0.1 1.0 12 Sodium Decyl Glucoside and Sodium Lauroyl Lactylate [5] 0.5 0.5 2.0 13 Sodium Decyl Glucoside and Sodium Lauroyl Lactylate [5] 0.1 0.9 3.0 1] Added as a commercially available aqueous solution containing 50-52wt% active glucoside [2] Added as a commercially available aqueous solution containing 68-72wt% active glucoside [3] Added as a commercially available aqueous solution containing 28.5-31,5wt% active sarcosinate 5 [4] Added as a commercially available aqueous solution containing 30 wt% active cocoamphoacetate [5] Added as a commercially available aqueous solution of 40-46wt% decyl glucoside and 10-17wt% sodium lauroyl lactylate 10 Compositions 1 to 13 were visually assessed to have a water-like viscosity. The compositions showed surprisingly low foaming tendency. Wet wipe cleaning on skin Test compositions were prepared as in Example 1. For each test composition, a wet wipe substrate measuring 17 cm x 18 cm was loaded with 5g of the composition to produce a wet wipe. Commercially available Boots and Simple® brand wet wipes were used as supplied. The Boots and Simple® wet wipes were used as a comparison as these do not contain a biosurfactant. Boots branded wet wipes are believed to comprise PEG6 Caprylic / capric glycerides, polysorbate 20 and PEG35 castor oil, and Simple® wet wipes are believed to comprise Cetearyl Isononoate, Ceteareth 20, Cetearyl alcohol, Glyceryl Stearate and Ceteareth 12. Commercially available test makeup compositions were used as supplied. For each wet wipe tested, a sample of Vitro skin® (skin-like substrate available from Florida Suncare Testing Inc.) was divided into 2 cm2 test squares using an adhesive template. 5 mg of test makeup (described below) was added to each test square and evenly spread. The makeup was allowed to dry for 30 minutes, and the adhesive template removed. When the makeup was dry, an initial colour measurement was taken using a Micromatch Plus hand-held colourimeter. Each test square was manually wiped 10 times with the wet wipe, trying to keep the force and speed consistent. The make-up films were then reanalysed with the Micromatch Plus colourimeter. The makeup data before and after was recorded and the difference in the colour value recorded as the detergency of make-up from the Vitro skin®. The results for each make-up type tested are shown below in Tables 2 to 4. 1) Waterproof Black Mascara (Big Drama) The Micromatch Plus colourimeter was set to measure L-value (white to black scale with 100 being white and 0 being black). An increasing L-value shows decreasing black mascara presence and vice versa. The results are shown in Table 2. Table 2 Test Composition L-value before cleansing L-value after cleansing Difference in L-value Water* 21.3 26.2 4.9 Sophorolipid (0.8 wt%), Caprylyl / Capryl Glucoside (0.2 wt%) 21.9 30.3 8.4 Sophorolipid (1 wt%)* 22.7 30.4 7.7 *Comparative examples The greater the difference in L-value the greater the cleansing of mascara from vitro skin. The cleansing compositions of the invention provided comparable or improved cleansing compared to the comparative examples. 2) Waterproof Red Lipstick (Rimmel) The Micromatch Plus colourimeter was set to measure a-value (red to green scale with 100 being red and 0 being green). A decreasing a-value shows decreasing red lipstick and vice versa. The results are shown in Table 3. Table 3 Test Composition a-value before cleansing a-value after cleansing Difference in a-value Water* 48.7 48.0 0.7 Simple® Wipes* 48.7 40.5 8.2 Sophorolipid (0.8 wt%), Caprylyl / Capryl Glucoside (0.2 wt%) 51.3 38.5 12.8 Sophorolipid (1 wt%)* 48.4 48.0 0.4 *Comparative examples The greater the difference in a-value the greater the cleansing of lipstick from Vitro skin®. The cleansing compositions of the invention provided improved cleansing compared to the comparative examples. 3) Foundation (L’Oreal Infallible 24 hour Matte) The Micromatch Plus colourimeter was set to measure L-value (white to black scale with 100 being white and 0 being black). An increasing L-value shows decreasing foundation presence and vice versa. The results are shown in Table 4. Table 4 Test Composition (wt% active) L-value before cleansing L-value after cleansing Difference in L-value Water* 38.4 40.2 1.8 Simple® Wipes* 38.0 39.7 1.7 Boots Wipes* 37.8 40.0 2.2 Sophorolipid (0.8 wt%), Caprylyl / Capryl Glucoside (0.2 wt%) 38.0 46.1 8.1 Sophorolipid (1 wt%)* 39.0 47.3 8.3 ‘Comparative examples The greater the difference in L-value the greater the cleansing of foundation from Vitro skin®. The cleansing compositions of the invention provided comparable or improved cleansing compared to the comparative examples. Example 3 Abrasion scrub test method Test compositions were prepared as in Example 1 (and made to 100 wt% with deionised water as in that example). This method uses a Sheen abrasion scrub tester for evaluating washing performance. Make-up (Maybelline Lash Sensational Sky-High Waterproof Mascara Black) was evenly applied to Vitro skin® and allowed to dry for 30 minutes. The Vitro skin® was then cut into 4x4cm test squares and each individual test square was applied onto double sided Sellotape. A colour measurement (L value) was then taken for each test square using a using Micromatch Plus hand-held colourimeter. Test articles were prepared by applying a test composition, dosed at 264 wt%, to 100% Viscose wipes. The wipes were then sealed in clingfilm to allow solution to wet the wipes and prevent drying. The wipes were then folded twice and fixed to the scrub tester feet. The Vitro skin® was taped to the scrub tester base. The scrub tester was set to zero counter and the start button pressed set to 30 counts. After this the stop button was pressed and the tape and Vitro skin® was carefully peeled off the scrub tester base, allowed to dry and the colour (L-value) was measured using the Micromatch Plus handheld colourimeter. The results are shown in Table 5 Table 5 Test composition (wt% active) Average L Value Before Average L Values After Difference in L Value Water* 51.31 51.88 0.57 Boots Wipes* 54.11 57.98 3.87 Simple Wipes* 50.88 57.21 6.33 Sophorolipid (1 wt%)* 50.68 55.38 4.70 Sophorolipid (0.1 wt%), Cocamidopropyl betaine (0.9wt%) 48.79 60.02 11.23 Sophorolipid (0.7wt%), Caprylyl / Capryl Glucoside (0.3wt%) 51.32 63.52 12.20 Sophorolipid (0.8wt%), Caprylyl / Capryl Glucoside (0.2wt%) 50.88 68.48 17.60 Sophorolipid (0.1wt%), Cocoyl Glycoside (0.9wt%) 51.52 70.42 18.9 Sophorolipid (0.1wt%), Decyl Glycoside (0.9wt%) 51.25 71.15 19.9 Sophorolipid (0.1wt%), Sodium C14-16 Olefin Sulfonate (0.9wt%) 51.50 64.78 13.28 Sophorolipid (0.1 wt%), Sodium Cocoamphoacetate (0.9wt%) 50.92 64.65 13.73 Sophorolipid (0.1wt%), Sodium Lauroyl Methyl Isethionate (0.9wt%) 51.25 66.17 14.92 *Comparative The greater the difference in L-value the greater the cleansing of make-up from vitro skin in the 5 scrub test. The wet wipes impregnated with cleansing compositions of the invention provided comparable or improved cleansing compared to the comparative examples. The present invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this 10 specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed. The present invention is not restricted to the details of the foregoing example(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims

1. A cleansing composition comprising one or more non-biological surfactants and one or more biosurfactants, provided that the composition does not comprise a taurate surfactant and / or provided that the composition does not comprise a glycolipid.

2. The cleansing composition according to claim 1, provided that the composition does not comprise a taurate surfactant, preferably wherein the one or more biosurfactants comprise one or more glycolipids.

3. The cleansing composition according to claim 1, provided that the composition does not comprise a glycolipid.

4. The cleansing composition according to claim 1, provided that the composition does not comprise a taurate surfactant and provided that the composition does not comprise a glycolipid.

5. The cleansing composition according to claim 2, wherein the one or more biosurfactants are selected from one or more of a rhamnolipid, a trehalolipid, a sophorolipid and a mannosylerythritol lipid, preferably wherein the one or more biosurfactants are sophorolipids.

6. The cleansing composition according to claim 3 or 4, wherein the one or more biosurfactants are selected from one or more of a lipopeptide, a phospholipid and a polymeric biosurfactant.

7. The cleansing composition according to claim 2 or 4, wherein the one or more non-biological surfactants are selected from one or more of an anionic surfactant which is not a taurate, a non-ionic surfactant, a cationic surfactant and an amphoteric surfactant, preferably wherein the one or more non-biological surfactants are selected from one or more of an anionic surfactant which is not a taurate and a non-ionic surfactant.

8. The cleansing composition according to claim 7, wherein the one or more non-biological surfactants are selected from one or more of a sulfonate surfactant, a sulfate surfactant, an isethionate surfactant, a lactylate surfactant, an acyl amino acid surfactant (e.g. an acyl sarcosinate, an acyl alaninate, an acyl glycinate or an acyl glutamate), an aromatic ester, a glycerol ester, an alkyl glucoside and a fatty alcohol.

9. The cleansing composition according to claim 3, wherein the one or more non-biological surfactants are selected from one or more of an anionic surfactant, a non-ionic surfactant, a cationic surfactant and an amphoteric surfactant, preferably wherein the one or more non-biological surfactants are selected from one or more of an anionic surfactant and a non-ionic surfactant.

10. The cleansing composition according to any of claims 1 to 6 wherein the one or more non-biological surfactants are selected from one or more of an acyl amino acid surfactant (especially an acyl sarcosinate), a lactylate surfactant, an alkyl glucoside, an amphoacetate, an alkylamidopropyl betaine, an alpha-olefin sulfonate and an isethionate surfactant.

11. The cleansing composition according to any preceding claim, wherein the weight ratio of the one or more biosurfactants to the one or more non-biological surfactants is from 9:1 to 1:9, preferably from 1:1 to 1:9, most preferably from 1:1 to 1:3.

12. The cleansing composition according to any preceding claim, wherein the composition is low foaming.

13. The cleansing composition according to any preceding claim, further comprising one or more additional components selected from a pH adjuster, preservative, a fragrance and an antibacterial agent.

14. The cleansing composition according to any preceding claim, wherein the composition is a personal care cleansing composition, a household care cleansing composition (preferably an auto-dishwash composition) or an automotive cleansing composition.

15. A cleansing article comprising a fibrous substrate impregnated with a cleansing composition according to any one of claims 1 to 14.

16. The cleansing article according to claim 15, wherein the fibrous substrate is at least partially saturated with the cleansing composition, preferably wherein the fibrous substrate is fully saturated with the cleansing composition.

17. The cleansing article according to claim 15 or 16, wherein the fibrous substrate comprises cotton, cellulose, bamboo, polyester, polypropylene, wood pulp and / or rayon.

18. A method of cleaning at least a portion of a surface, wherein the method comprises contacting the portion of the surface with the cleansing composition or cleansing article according to any of claims 1 to 17.

19. Use of a cleansing composition orcleansing article according to any of claims 1 to 17 to provide cleaning at least a portion of a surface.

20. The method or use according to claim 18 or 19, wherein the cleaning comprises at least the partial removal of a substance from the surface, preferably wherein the substance is an oily substance.

21. The method or use according to claim 20, wherein the substance is a cosmetic composition, preferably wherein the cosmetic composition is waterproof.

22. The method or use according to any of claims 18 to 21, wherein the surface is skin or hair, preferably wherein the skin or hair is human skin or hair.

23. A method of forming a cleansing article according to any of claims 15 to 17, the method comprising impregnating the fibrous substrate with the cleansing composition.

24. A kit comprising a cleansing composition according to any of claims 1 to 14 and a fibrous substrate to which the cleansing composition may be applied.

25. A product comprising the cleansing composition or cleansing article according to any of claims 1 to 17 and packaging for the cleansing composition orcleansing article.IntellectualPropertyOfficeApplication GB2504425.6Search report under Section 17 of the Patents Act 1977Date search completed: 09 September 2025Claims searched: 1-25International classificationSubclass and subgroup Valid from C11D1 / 04 01 / 01 / 2006 C11D1 / 10 01 / 01 / 2006 C11D1 / 66 01 / 01 / 2006 C11D1 / 88 01 / 01 / 2006Field of searchWorldwide search of patent documents classified in the following areas of the IPC:C11DDatabases used in the preparation of this search report:SEARCH-PATENTDocuments considered to be relevantPatent literatureCategory Relevant Document of relevanceclaimsX 1-2, 5, 7-8, 10-14, 1822, 25 CN 111714402 A (GUANGDONG BAILICHEN), See claim 1 and example compositions. X 1-2, 5, 7-8, 12-14, 1822, 25 US 6262038 B1 (PIERCE), See examples 1 and 5 and column 4 lines 35-51. X 1-2, 5, 7-8, 12-25 US 2014 / 0349902 A1 (ALLEF), See example 1b, table 76, and paragraph [0062]. X 1-2, 5, 7-8, 10-14, 1821,22, 25 US 2023 / 0107595 A1 (ZHU), See example 3. X 1-2, 5, 7-8, 10-14, 1821,22, 25 US 2023 / 0320961 A1 (IGWEKALANWEKE), See example compositions. X 1-4, 6-10, 12-14, 18 21,25 CN 116948753 A (CHEN), See example 1 and table 9. Non-patent literature Category Relevant claims Document of relevanceCategoriesLetter or DescriptionsymbolDocument indicating lack of novelty or inventive step.Letter or symbol Description Y Document indicating lack of inventive step, if combined with another document of the same category. & Member of the same patent family. A Document indicating technological background. P Document published on or after the priority date but before the fling date of the present application. E Earlier application published on or after the filing date of the present application.