Personal care concentrates

Abstract

A kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient, and one or more antimicrobial agent, wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, and one or more amphoteric surfactant.

Description

[0001] Personal care concentrates Field of the invention The present invention relates to concentrate compositions for diluting with water to form an end-use personal care composition. Background of the invention Plastic pollution has become one of the most pressing environmental issues and the personal care industry is a huge contributor to the problem. Most of the packaging used in the industry is single use plastic packaging which ends up in landfill and can take up to 450 years to breakdown. In addition, there is a high carbon footprint associated with the production and shipping of plastic packaging. Not surprisingly, conscious consumers are looking for opportunities to reduce plastic consumption and waste. Recycling single-use plastics is not necessarily the answer because the rates of recycling personal care waste are low and this does not solve the problems associated with plastic production and shipping. Efforts have therefore been made to produce personal care products in concentrate form without the need for single- use and non-recyclable / non-biodegradable plastics that the consumer can convert into an end usable product simply by adding water. However, existing concentrates have their limitations. Whilst consumers are keen to do more for the planet, they are less keen to compromise on product quality and user experience, such as mild and moisturising products that feel nice to use. For example, for the solid format synthetic detergent bars (also known as syndet bars), water is added to create foam on the product and lather is used on the hair and skin. The problem is that it generates mess, the product diminishes with use and therefore user experience is not consistent each time the product is used, and the feel of the product is less appealing than the norm of applying a liquid to the hair or skin. Consumer adoption has therefore been limited. There are also powdered / granular format concentrates to which water can be added by the consumer to create an end usable product, in, for example, a reusable bottle. However, adding water to such concentrates often results in a product that is drying on the skin (typically the most effective and cost-effective emollients and humectants are in liquid form), produce an opaque product sue to powdered humectants often impacting on the clarity of the finished product and has poor stability. A further difficulty in formulating powder concentrates is identifying preservatives that will be effective when the product is hydrated. Attempts have also been made to produce concentrates in liquid form but the degree of concentration has been limited such that the liquid concentrate is still of a volume that requires waterproof and low weight packaging for safe and efficient shipping. Such packaging is typically made of single-use plastic. Other packaging materials such as aluminium and glass have significant carbon footprints associated with their manufacture, transport and recycling. Another limitation of liquid concentrates is the ability to formulate a concentrate with a viscosity low enough to allow ease of filling by a machine during manufacturing and ease of cleaning said machine whilst also having the properties to generate a viscous product having good skin feel after the addition of water by the consumer. Often manufacturers of either form of concentrate (liquid or powder) find considerable difficulty in formulating to achieve a viscosity typical in the personal wash market (3000-6000 cP) on the addition of water. This difficulty has been addressed by incorporating a special pump on a reusable bottle that delivers an aerated foam, rather than a liquid. Whilst this allows the manufacturer to ignore the issue of a resultant product and produce a diluted product with a viscosity close to that of water, the applications are limited as showering or shampooing with a foam requires significant changes in consumer behaviour and foaming pumps are typically difficult to recycle. Concentrates encapsulated in water-soluble films such as polyvinyl alcohol (PVA or PVOH) and biofilms derived from pea protein or seaweed have been utilised in the laundry and dishwashing industries. However, such concentrates are not required to be dilutable to form an end usable product suitable for application to the hair and skin with excellent sensory benefits. For example, when it comes to personal care concentrates, it is important to consider the ability to create an end use composition which is physically and microbiologically stable and which has the desired viscosity, pH, cleansing and moisturising properties. Water soluble pods containing e.g. a body wash or shampoo do exist but they are single use products and do not contain a concentrate: in other words a single pod of product is required for each hair wash or more than one pod in the case of showering which proves expensive and creates storage problems in the bathroom as the pods have a tendency to stick together in humid atmospheres. There is therefore an unmet need to provide concentrate compositions free of non- recyclable / non-biodegradable plastic packaging that can be diluted with water (e.g. in a re-usable bottle) to form an end-use personal care / hygiene composition which is stable and which has the desired viscosity, pH, cleansing and moisturising properties. In terms of stability, it must be physically and microbiologically stable in both its concentrated form during manufacture and the supply chain and also once made up by the consumer with water and stored at home. Summary of the invention Accordingly, in a first aspect of the invention, there is provided a kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient, and one or more antimicrobial agent, wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, and one or more amphoteric surfactant. The applicant has found that a physically and microbiologically stable personal care composition having desirable viscosity, clarity, pH, cleansing and moisturising properties can be formed when the above-mentioned liquid and powder compositions are combined with water. Further advantageously, the liquid / gel composition can be contained effectively within a water-soluble capsule until such a time that a personal care composition is required to be formed and the capsule is in contact with water. Therefore, the applicant has developed a concentrate that is able to form a desirable personal care composition without the need for single-use and non-recyclable / non- biodegradable plastic packaging. In another aspect of the invention, there is provided a method of using the kit according to the invention, the method comprising mixing together the first and second compositions with water to form a personal care composition. In another aspect of the invention, there is provided a use of the kit according to the invention to improve viscosity of a personal care composition, improve stability of a personal care composition, improve cleansing abilities of a personal care composition, improve moisturising abilities of a personal care composition, improve clarity of a personal care composition, reduce skin dryness, reduce plastic waste, reduce transport costs and / or reduce storage space requirements. In another aspect of the invention, there is provided a kit comprising: (i) a liquid or gel composition comprising one or more emollient, and one or more antimicrobial agent, wherein the liquid or gel composition is contained within a water-soluble capsule; and (ii) instructions for using the liquid or gel composition with a powder composition, the powder composition comprising one or more anionic surfactant, and one or more amphoteric surfactant. In another aspect of the invention, there is provided a kit comprising: (i) a powder composition comprising one or more anionic surfactant, and one or more amphoteric surfactant; and (ii) instructions for using the powder composition with a liquid or gel composition, the liquid or gel composition comprising one or more emollient, and one or more antimicrobial agent, wherein the liquid or gel composition is contained within a water-soluble capsule. In another aspect of the invention, there is provided a product for diluting with water to form a personal care composition, comprising a water-soluble capsule, wherein the water-soluble capsule comprises: (i) a first compartment containing a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient, one or more antimicrobial agent; and (ii) a second compartment containing a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, and one or more amphoteric surfactant. The applicant has found that the liquid / gel and powder compositions can be contained separately and effectively within a single water-soluble capsule until such a time that a personal care composition is required to be formed and the capsule is in contact with water. In another aspect of the invention, there is provided a method of making a personal care composition, the method comprising adding water to the product according to the invention. In another aspect of the invention, there is provided a method of using the product according to the invention, the method comprising adding water to the product to form a personal care composition. In another aspect of the invention, there is a provided a personal care composition obtainable by diluting the product according to the invention with water. In another aspect of the invention, there is provided a personal care composition comprising / consisting of: one or more emollient; one or more antimicrobial agent; one or more anionic surfactant; one or more amphoteric surfactant; and water made up to 100% by weight based on weight of the composition. Examples embodying an aspect of the invention will now be described with reference to the following figures: Figure 1 illustrates a liquid composition contained within a water soluble capsule. Figure 2 illustrates both liquid and powder compositions contained within multiple compartments of a water soluble capsule. Figure 3 illustrates a three-compartment water-soluble capsule containing liquid and powder compositions. Detailed description of the invention Unexpectedly, the applicant has found that having two compositions each of different physical state, i.e. a liquid composition and a solid powder composition, is important for a dilutable personal care concentrate and ultimately for achieving a stable and desirable end-use personal care composition. The first composition is a liquid or a gel at room temperature. The term “liquid” means that the composition is free-flowing and takes the shape of its container as would be understood by the person skilled in the art. The term “gel” means that the composition is a semi-liquid as would be understood by the person skilled in the art. The one or more emollient may be in liquid form. The one or more emollient may be a polyethylene glycol ether of Glyceryl Cocoate, for example PEG-7 Glyceryl Cocoate, PEG-30 Glyceryl Cocoate, and / or PEG-40 Glyceryl Cocoate. The one or more emollient may be PEG-7 Glyceryl Cocoate, PEG-30 Glyceryl Cocoate, PEG-40 Glyceryl Cocoate glycerin, sorbitol, coco glucoside, 2-Ethylhexyl Oleate, 2-Ethylhexyl Palmitate, 2- Ethylhexyl Laurate, 2-Ethylhexyl Cocoate, Isopropyl Palmitate, Isopropyl Myristate, Isopropyl Oleate, Decyl Oleate, Butyl Oleate, Methyl Oleate and / or Rapeseed Methyl Ester. In one embodiment, the emollient comprises PEG-7 Glyceryl Cocoate. In another embodiment, the emollient comprises PEG-7 Glyceryl Cocoate and glycerin. The one or more emollient may be present in an amount from about 60% to about 90% by weight, or from about 63% to about 87% by weight, based on the weight of the first composition. The one or more emollient may be present in an amount of from about 5% to about 25% by weight, or from about 8% to about 22% by weight based on the weight of the first and second compositions combined. The one or more antimicrobial agent may be in liquid form. The one or more antimicrobial agent may be any preservative commonly used in the field of cosmetics and personal care as would be known by the skilled person. For example, a preservative selected from the group consisting of phenoxyethanol, chlorhexidine, chlorhexidine digluconate, chlorhexidine dihydrochloride, chlorhexidine diacetate, chlorhexidine gluconate, chlorhexidine hydrochloride, chlorhexidine phosphanilate, chlorphensin, benzoic acid or a salt or ester thereof (e.g. sodium benzoate), propionic acid or a salt thereof, salicylic acid or a salt thereof, sorbic acid or a salt thereof (e.g. potassium sorbate), formaldehyde, paraformaldehyde, zinc pyrithione, inorganic sulphites, hydrogen sulphites, chlorobutanol, 4-hydroxybenzoic acid or a salt or ester thereof (e.g. methylparaben, ethylparaben, propylparaben), dehydroacetic acid and / or a salt thereof (e.g. sodium dehydroacetate), formic acid or a salt thereof, dibromohexamidine isethionate; thimerosal, phenylmecuric salts, undecylenic acid or a salt thereof, hexetidine, bronopol, 5-bromo-5-nitro-1,3-dioxane, dichlorobenzyl alcohol, benzyl alcohol, triclocarban, chlororesol, triclosan, chloroxylenol, imidazolidinyl urea, polyaminopropyl biguanide, methenamine, quaternium-15, climbazole, DMDM hydantoin, 1-hydroxy-4-methyl-6-(2,4,4-trimethylenepentyl)-2 pyridon, piroctone olamine, bromochlorophene, O-cymen-5-ol, methylchloroisothiazolinone, methylisothiazololinone, mixtures of methylchloroisothiazolinone and methylisothiazololinone, chlorophene, chloroacetamide, phenoxyisoproponol, alkyl (C12-C22) trimethyl ammonium bromide, alkyl (C12-C22) trimethyl ammonium chloride, dimethyl oxazolidine, diazolidinyl urea, hexamidine, hexamidine diisethionate, hexamidine diparaben, hexamidine paraben, glutaral, 7- ethylbicyclooxazolidine, sodium hydroxymethylaminoacetate, silver chloride, benzethonium chloride, benzalkonium chloride, benzalkonium bromide, benzalkonium saccharinate, benzylhemiformal, iodopropynyl butylcarbamate, silver citrate, and combinations thereof. The preservative may be phenoxyethanol. The one or more antimicrobial agent may be a blend of a cosmetic / personal care preservative with other antimicrobial agents having antibacterial and / or antifungal activity. For example, the one or more antimicrobial agent may be a blend of phenoxyethanol with caprylyl glycol, propylene glycol and / or piroctone olamine. Therefore, the one or more antimicrobial agent may be phenoxyethanol, caprylyl glycol and propylene glycol, for example as sold under the trade name Saliguard® PCG. Alternatively, the one or more antimicrobial agent may be phenoxyethanol and piroctone olamine, for example as sold under the trade name Nipaguard® PO 5. The one or more antimicrobial agent may be present in an amount of from about 1% to about 25% by weight, or from about 5% to about 24% by weight, or from about 8% to about 23% by weight, or from about 9% to about 22% by weight, or from about 10% to about 20% based on the weight of the first composition. The one or more antimicrobial agent may be present in an amount of from about 1% to about 6% by weight, or from about 2% to about 5% by weight, based on the weight of the first and second compositions combined. When the one or more antimicrobial agent is a blend comprising phenoxyethanol, caprylyl glycol and propylene glycol, (i) the phenoxyethanol may be present in an amount of from about 1% to about 10% by weight, or from about 2% to about 8% by weight, or from about 3% to about 6% by weight, or from about 4% to about 6% by weight, based on the weight of the first composition (ii) the caprylyl glycol may be present in an amount of from about 0.5% to about 5% by weight, or from about 1% to about 4% by weight, or from about 1.5% to about 3% by weight, or from about 2% to about 3% by weight, based on the weight of the first composition, and (iii) the propylene glycol may be present in an amount of from about 1% to about 10% by weight, or from about 2% to about 8% by weight, or from about 3% to about 6% by weight, or from about 4% to about 6% by weight, based on the weight of the first composition. When the one or more antimicrobial agent is a blend comprising phenoxyethanol and piroctone olamine, (i) the phenoxyethanol may be present in an amount of from about 5% to about 20% by weight, or from about 7% to about 18% by weight, or from about 9% to about 17% by weight, based on the weight of the first composition, and (ii) the piroctone olamine may be present in an amount of from about 0.5% to about 5% by weight, or from about 1% to about 4% by weight, or from about 2% to about 3% by weight, based on the weight of the first composition. The first composition may further comprise a fragrance. The fragrance may be in liquid form. The fragrance may be selected from any known fragrances in the art. Such fragrances can include components like nerolidol, geraniol, terpinolene, linalool, terpinene, limonene, pinene, camphene, citronellol, citronellal, geraniol, vanillin, terpineol, thymol, eugenol, lavender oil, sage oil, orange flower oil, rosemary oil, ginger oil, lemon oil, thyme oil, terpinyl acetate or mixtures thereof. The fragrance may be a synthetic fragrance. The fragrance may be present in an amount of from about 1% to about 20% by weight, from about 5% to about 19% by weight, or from about 8% to about 17% by weight, based on the weight of the first composition. The first composition may further comprise a conditioning agent. The conditioning agent may be in liquid form. The conditioning agent may be selected from the group consisting of Silicone Quaternium-20, Silicone Quaternium-24, cyclomethicone, dimethicone or a derivative thereof (e.g. a dimethicone copolyol, Dimethicone-PG Diethylammonium Chloride, PEG-12 Dimethicone, Dimethicone PEG-7 Isostearate, PEG-8 Dimethicone, BIS-PEG-8 PEG-8 Dimethicone, Trimethylsiloxysilicate, Amodimethicone and Trideceth-12 and Cetrimonium Chloride), and combinations thereof. In one embodiment, the conditioning agent is Silicone Quaternium-20, PEG-12 Dimethicone and / or Trimethylsiloxysilicate. The conditioning agent may be present in an amount of from about 1% to about 20% by weight, from about 5% to about 15% by weight, or from about 10% to about 13% by weight, based on the weight of the first composition. The conditioning agent may be present in an amount of from about 1% to about 5% by weight, based on the weight of the first and second compositions combined. The first composition may further comprise one or more alpha hydroxy acid. The one or more alpha hydroxy acid may be citric acid, glycolic acid, lactic acid, acetic acid, 2- hydroxyoctanoic acid, and / or 2-hydroxydecanoic acid. The alpha hydroxy acid may be obtained from its natural sources or may be made synthetically. The one or more alpha hydroxy acid may be present in an amount of from about 1% to about 15% by weight, or from about 8% to about 13% by weight, based on the weight of the first composition. The first composition may contain no water or less than about 8% water by weight, less than about 7% water by weight, less than about 6% water by weight, less than about 5% water by weight, less than about 4% water by weight, less than about 3% water by weight, less than about 2% water by weight or less than about 1% water by weight, based on the weight of the first composition. The first composition is contained within a water-soluble capsule / encapsuled in a water- soluble capsule. The capsule comprises / is formed of a water-soluble material / film. The material / film may be made from polymers, copolymers or derivatives thereof, for example polyvinyl alcohol, polyvinyl pyrrolidone, polyalkylene oxides, acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic acids and salts thereof, polyaminoacids or peptides, polyamides, polyacrylamide, copolymers of maleic / acrylic acids, and polysaccharides including starch and gelatine, natural gums such as xanthum and carragum. The material / film may also be derived from seaweed or pea protein. The capsule can be made using any known processes in the art, such as using a water-soluble film and creating compartments using the film, by injection moulding to provide a casing or a thermoforming process. Preferably, the capsule is formed of a polyvinyl alcohol film. The capsule is a closed structure enclosing a volume space. Such capsules are known in the art, for example they are commonly used in the laundry and dishwashing industries, and would be readily understood by the skilled person. The second composition is a powder at room temperature. The term “powder” means that the composition is in the form of solid particles or granules as would by understood by the person skilled in the art. The one or more anionic surfactant is in powder form. The term “anionic surfactant” is intended to mean a surfactant comprising an anionic hydrophilic group, i.e. a group bearing at least one permanent negative charge or a group capable of being ionised as a negatively charges species under the conditions of the use of the invention (for example by the medium or the pH). The one or more anionic surfactant may be Sodium Coco Sulphate, Sodium Lauryl Sulphate, Sodium Lauryl Sulfoacetate, Sodium Cocoyl Glycinate, Disodium / Sodium Cocoyl Glutamate, Sodium Lauroyl Glutamate, Sodium Myristoyl Glutamate, Sodium Palmoyl Glutamate, Sodium Lauroyl Sarcosinate, Sodium Lauryl Methyl Isoethionate, Disodium Lauryl Sulfosuccinate, and / or Sodium C14-C16 Olefin Sulphate. In one embodiment, the anionic surfactant comprises Sodium Coco Sulphate. The one or more anionic surfactant may be present in an amount of from about 40% to about 70% by weight based on the weight of the second composition. The one or more anionic surfactant may be present in an amount of from about 30% to about 55% by weight, based on the weight of the first and second compositions combined. The one or more amphoteric surfactant is in powder form. The term “amphoteric surfactant” (also known as a “zwitterionic surfactant”) is intended to mean a surfactant comprising a hydrophilic group with both cationic and anionic groups. The amphoteric surfactant may be a betaine, a hydroxysultaine, a diacetate, and / or an acetate. The amphoteric surfactant may be in the form of a salt, for example a sodium salt, a disodium salt and / or a magnesium salt. The amphoteric surfactant may have a hydrophobic chain of C8-C30, C10-C28, C12-C26, C10-C18, C12-C24, or C12-C18. The amphoteric surfactant may be selected from the group consisting of Cocoamidopropyl Betaine, Lauramidopropyl Betaine, Cocodimethyl Carboxymethyl Betaine, Capryl / Capramidopropyl Betaine, Sodium Cocoamphoacetate, Babassuamidopropyl Betaine, Cetyl Betaine, Coco-Betaine, Disodium Capryloamphodiacetate, Disodium Cocoamphodiacetate, Disodium Lauroamphodiacetate, Lauryl Betaine, Meadowfoamamidopropyl Betaine, Oleamidopropyl Betaine, SheaButteramidopropyl Betaine, Sodium Cocoabutteramphoacetate, Sodium Lauroamphoacetate, Sodium Olivamphoacetate, Soyamidopropyl Betaine, Cocamidopropyl Hydroxysultaine, Lauramidopropyl Hydroxysultaine, Lauryl Hydroxysultaine, and combinations thereof. In one embodiment, the amphoteric surfactant comprises a betaine. In one embodiment, the amphoteric surfactant comprises an amidopropyl betaine, e.g. Cocoamidopropyl Betaine. The amphoteric surfactant may be present in an amount from about 25% to about 60% by weight, or from about 30% to about 56% by weight, based on the weight of the second composition. The amphoteric surfactant may be present in an amount from about 20% to about 45% by weight, based on the weight of the first and second compositions combined. The second composition may further comprise one or more alpha hydroxy acid in powder form. The one or more alpha hydroxy acid may be citric acid, glycolic acid, lactic acid, acetic acid, 2-hydroxyoctanoic acid, and / or 2-hydroxydecanoic acid. The alpha hydroxy acid may be obtained from their natural sources or may be made synthetically. The one or more alpha hydroxy acid may be present in an amount of from about 0.01% to about 10% by weight, or from about 1% to about 8% by weight, or from about 2% to about 5% by weight, based on the weight of the second composition. The second composition may further comprise a thickener. The thickener may comprise hydroxypropyl methylcellulose. The thickener may be present in an amount of from about 1% to about 10% by weight, or from about 5% to about 9% by weight, based on the weight of the second composition. The skilled person will appreciate that the amounts of the components (plus optional additives) in the first composition will total 100%. Similarly, the skilled person will appreciate that the amounts of the components (plus optional additives) in the second composition will total 100%. The second composition / powder composition may be contained within suitable packaging, e.g. in a paper sachet, prior to use. In one embodiment, the weight of the first composition / liquid composition is different than the weight of the second composition / powder composition. The second composition / powder composition may be at least 2 times the weight of the first composition / liquid composition, or at least 2.5 times the weight, or at least 3 times the weight. In one embodiment, the second composition / powder composition may be about 2 times to about 7 times the weight of the first composition / liquid composition, for example, about 2.5 times to about 6.5 times the weight, or about 3 times to about 6 times the weight. In one embodiment, the weight of the first composition / liquid composition in the first compartment is about 3 to about 7 grams (e.g. about 3 to about 6 grams), and / or the weight of the second composition / powder composition in the second compartment is about 10 to about 25 grams (e.g. about 11 to about 21 grams). The invention also provides a method of using the kit comprising mixing together the first and second compositions with water (e.g. by the end consumer) to form a personal care composition. In one embodiment, 1 volume part of the first and second compositions is mixed with at least about 2 volume parts water, or at least about 3 volume parts water, or at least about 4 volume parts water. In one embodiment, 1 volume part of the first and second compositions is mixed with about 3 volume parts to about 5 volume parts water. In one embodiment, the first and second composition are diluted at least about 2-fold with water, or at least about 3-fold with water, or at least about 4- fold with water, or at least about 5-fold with water. In one embodiment, the first and second composition are diluted about 3-fold to about 6-fold with water. In one embodiment, the first and second composition are diluted about 5-fold with water. In one embodiment, the first and second compositions weigh about 15g to about 30g, or about 18g to about 25g and water is added to the product in an amount of about 50ml to about 250ml, or about 60ml to about 200ml, or about 75ml to about 150ml, or about 80ml to about 120ml. In one embodiment, the first and second compositions weight about 18g to about 25g and water is added in an amount of about 100ml. The invention also provides a product for diluting with water to form a personal care composition. In this aspect, the capsule is a closed structure enclosing a volume space which is separated into at least two compartments. The liquid and solid components contained within the volume space are within separate compartments of the capsule. Such capsules are known are known in the art, for example they are commonly used in the laundry and dishwashing industries, and would be readily understood by the skilled person. It will be appreciated that features described above in relation to the first / second compositions and the water-soluble capsule also apply to this aspect of the invention, In one aspect of this embodiment, the water-soluble capsule may further comprise a third compartment. The third compartment may contain more of the first composition or more of the second composition. The water-soluble capsule may comprise four compartments, five compartments or six compartments. When present, each of the compartments may contain more of the first composition or more of the second composition. The invention provides a method of making a personal care composition, comprising adding water (e.g. by the end-consumer) to the product according to the invention. In one embodiment, 1 volume part of the first and second compositions is mixed with at least about 2 volume parts water, or at least about 3 volume parts water, or at least about 4 volume parts water. In one embodiment, 1 volume part of the first and second compositions is mixed with about 3 volume parts to about 5 volume parts water. In one embodiment, the first and second composition are diluted at least about 2-fold with water, or at least about 3-fold with water, or at least about 4-fold with water, or at least about 5-fold with water. In one embodiment, the first and second composition are diluted about 3-fold to about 6-fold with water. In one embodiment, the first and second composition are diluted about 5-fold with water. In one embodiment, the first and second compositions weigh from about 15g to about 30g or from about 18g to about 25g and water is added to the product in an amount of about 50ml to about 250ml, or about 60ml to about 200ml, or about 75ml to about 150ml, or about 80ml to about 120ml. In one embodiment, the first and second compositions weigh about 18g to about 25g and water is added (e.g. by the end consumer) in an amount of about 100ml. In any of the above aspects, the personal care composition may be in the form of a body wash, a hair shampoo, a hair conditioner, a hand wash, a facial wash, a feminine wash, a make-up remover or a wash for pets / animals. The end personal care composition may have a pH from about 4.5 to about 7. The end personal care composition may have a viscosity of from about 2500cps to about 7500cps or from about 3000cps to about 7000cps. Example embodiments In one embodiment, there is provided a kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient, and one or more antimicrobial agent, wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, one or more amphoteric surfactant, and one or more alpha hydroxy acid. In one embodiment, there is provided a kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient comprising a polyethylene glycol ether of glyceryl cocoate (e.g. PEG-7 glyceryl cocoate, PEG-30 glyceryl cocoate, and / or PEG-40 glyceryl cocoate), and one or more antimicrobial agent, wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, one or more amphoteric surfactant, and optionally one or more alpha hydroxy acid. In one embodiment, there is provided a kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient comprising a polyethylene glycol ether of glyceryl cocoate (e.g. PEG-7 glyceryl cocoate, PEG-30 glyceryl cocoate, and / or PEG-40 glyceryl cocoate), and one or more antimicrobial agent comprising phenoxyethanol, wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, one or more amphoteric surfactant comprising a betaine (e.g. an amidopropyl betaine), and optionally one or more alpha hydroxy acid. In one embodiment, there is provided a kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient comprising a polyethylene glycol ether of glyceryl cocoate (e.g. PEG-7 glyceryl cocoate, PEG-30 glyceryl cocoate, and / or PEG-40 glyceryl cocoate) and optionally glycerin, and one or more antimicrobial agent comprising phenoxyethanol, caprylyl glycol, propylene glycol and / or piroctone olamine wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant selected from the group consisting of Sodium Coco Sulphate, Sodium Lauryl Sulphate, Sodium Lauryl Sulfoacetate, Sodium Cocoyl Glycinate, Disodium / Sodium Cocoyl Glutamate, Sodium Lauroyl Glutamate, Sodium Myristoyl Glutamate, Sodium Palmoyl Glutamate, Sodium Lauroyl Sarcosinate, Sodium Lauryl Methyl Isoethionate, Disodium Lauryl Sulfosuccinate, and Sodium C14- C16 Olefin Sulphate, one or more amphoteric surfactant comprising a betaine (e.g. an amidopropyl betaine), and optionally one or more alpha hydroxy acid selected from the group consisting of citric acid, glycolic acid, lactic acid, acetic acid, 2- hydroxyoctanoic acid, and 2-hydroxydecanoic acid. In one embodiment, there is provided a kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient, one or more antimicrobial agent, and optionally one or more conditioning agent wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, one or more amphoteric surfactant, and optionally one or more alpha hydroxy acid, wherein the emollient is present in an amount of from about 60% to about 90% by weight based on the weight of the first composition, wherein the antimicrobial agent is present in an amount of from about 5% to about 25% by weight based on the weight of the first composition, wherein the anionic surfactant is present in an amount of from about 40% to about 70% by weight based on the weight of the second composition, wherein the amphoteric surfactant is present in an amount from about 25% to about 60% by weight based on the weight of the second composition, and wherein, if present, the alpha hydroxy acid is present in an amount of from about 1% to about 10% by weight, based on the weight of the second composition In one embodiment, there is provided a kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient comprising a polyethylene glycol ether of glyceryl cocoate (e.g. PEG-7 glyceryl cocoate, PEG-30 glyceryl cocoate, and / or PEG-40 glyceryl cocoate) and optionally glycerin, and one or more antimicrobial agent comprising phenoxyethanol, caprylyl glycol, propylene glycol and / or piroctone olamine wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant selected from the group consisting of Sodium Coco Sulphate, Sodium Lauryl Sulphate, Sodium Lauryl Sulfoacetate, Sodium Cocoyl Glycinate, Disodium / Sodium Cocoyl Glutamate, Sodium Lauroyl Glutamate, Sodium Myristoyl Glutamate, Sodium Palmoyl Glutamate, Sodium Lauroyl Sarcosinate, Sodium Lauryl Methyl Isoethionate, Disodium Lauryl Sulfosuccinate, and Sodium C14- C16 Olefin Sulphate, one or more amphoteric surfactant comprising a betaine (e.g. an amidopropyl betaine), and optionally one or more alpha hydroxy acid comprising citric acid and / or acetic acid, wherein the emollient is present in an amount of from about 60% to about 90% by weight based on the weight of the first composition, wherein the antimicrobial agent is present in an amount of from about 5% to about 25% by weight based on the weight of the first composition, wherein the anionic surfactant is present in an amount of from about 40% to about 70% by weight based on the weight of the second composition, wherein the amphoteric surfactant is present in an amount from about 25% to about 60% by weight based on the weight of the second composition, wherein, if present, the alpha hydroxy acid is present in an amount of from about 1% to about 10% by weight, based on the weight of the second composition, and optionally wherein the water-soluble capsule is formed of a PVOH film. In one embodiment, there is provided a product for diluting with water to form a personal care composition, comprising a water-soluble capsule, wherein the water- soluble capsule comprises: (i) a first compartment containing a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient, one or more antimicrobial agent; and (ii) a second compartment containing a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, one or more amphoteric surfactant, and one or more alpha hydroxy acid. In one embodiment, there is provided a product for diluting with water to form a personal care composition, comprising a water-soluble capsule, wherein the water- soluble capsule comprises: (i) a first compartment containing a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient comprising a polyethylene glycol ether of glyceryl cocoate (e.g. PEG-7 glyceryl cocoate, PEG-30 glyceryl cocoate, and / or PEG-40 glyceryl cocoate) and / or glycerin, one or more antimicrobial agent; and (ii) a second compartment containing a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, one or more amphoteric surfactant, and optionally one or more alpha hydroxy acid. In one embodiment, there is provided a product for diluting with water to form a personal care composition, comprising a water-soluble capsule, wherein the water- soluble capsule comprises: (i) a first compartment containing a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient comprising a polyethylene glycol ether of glyceryl cocoate (e.g. PEG-7 glyceryl cocoate, PEG-30 glyceryl cocoate, and / or PEG-40 glyceryl cocoate) and / or glycerin, one or more antimicrobial agent, optionally one or more conditioning agent; and (ii) a second compartment containing a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, one or more amphoteric surfactant comprising a betaine (e.g. an amidopropyl betaine), and optionally one or more alpha hydroxy acid. In one embodiment, there is provided a product for diluting with water to form a personal care composition, comprising a water-soluble capsule, wherein the water- soluble capsule comprises: (i) a first compartment containing a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient comprising a polyethylene glycol ether of glyceryl cocoate (e.g. PEG-7 glyceryl cocoate, PEG-30 glyceryl cocoate, and / or PEG-40 glyceryl cocoate) and / or glycerin, one or more antimicrobial agent comprising phenoxyethanol, caprylyl glycol, propylene glycol and / or piroctone olamine optionally one or more conditioning agent comprising Silicone Quaternium-20; and (ii) a second compartment containing a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant selected from the group consisting of Sodium Coco Sulphate, Sodium Lauryl Sulphate, Sodium Lauryl Sulfoacetate, Sodium Cocoyl Glycinate, Disodium / Sodium Cocoyl Glutamate, Sodium Lauroyl Glutamate, Sodium Myristoyl Glutamate, Sodium Palmoyl Glutamate, Sodium Lauroyl Sarcosinate, Sodium Lauryl Methyl Isoethionate, Disodium Lauryl Sulfosuccinate, and Sodium C14- C16 Olefin Sulphate, one or more amphoteric surfactant comprising a betaine (e.g. an amidopropyl betaine), optionally one or more alpha hydroxy acid comprising citric acid or acetic acid, and optionally one or more thickener comprising hydroxypropyl methylcellulose, wherein the emollient is present in an amount of from about 60% to about 90% by weight based on the weight of the first composition, wherein the antimicrobial agent is present in an amount of from about 5% to about 25% by weight based on the weight of the first composition, wherein the anionic surfactant is present in an amount of from about 40% to about 70% by weight based on the weight of the second composition, wherein the amphoteric surfactant is present in an amount from about 25% to about 60% by weight based on the weight of the second composition, wherein, if present, the alpha hydroxy acid is present in an amount of from about 1% to about 10% by weight, based on the weight of the second composition, and optionally wherein the water-soluble capsule is formed of a PVOH film. In one embodiment, there is provided a personal care composition comprising / consisting of: a) 1%-5% w / w emollient; b) 0.2%-0.8% w / w antimicrobial agent; c) optionally 0.1%-1% conditioning agent; d) 2%-10% w / w anionic surfactant; e) 2%-8% w / w amphoteric surfactant; f) optionally 0.1%-1% w / w alpha hydroxy acid; g) optionally 0.1-2% w / w thickener; and h) 75%-90% w / w water. In this embodiment, the anionic surfactant and / or amphoteric surfactant may be in powder form / may be a powder. Additionally or alternatively, the emollient and / or antimicrobial agent may be in liquid or gel form / may be a liquid or gel. The emollient may be PEG-7 glyceryl cocoate and / or glycerin, the antimicrobial agent may be phenoxyethanol, caprylyl glycol, propylene glycol and / or piroctone olamine. The conditioning agent may be Silicone Quaternium-20. The anionic surfactant may be Sodium Coco Sulphate, Sodium Lauryl Sulphate, Sodium Lauryl Sulfoacetate, Sodium Cocoyl Glycinate, Disodium / Sodium Cocoyl Glutamate, Sodium Lauroyl Glutamate, Sodium Myristoyl Glutamate, Sodium Palmoyl Glutamate, Sodium Lauroyl Sarcosinate, Sodium Lauryl Methyl Isoethionate, Disodium Lauryl Sulfosuccinate, and / or Sodium C14-C16 Olefin Sulphate. The amphoteric surfactant may be a betaine, e.g. an amidopropyl betaine. The alpha hydroxy acid may be citric acid or acetic acid. The thickener may be hydroxypropyl methylcellulose. The person skilled in the art will appreciate that features of any one embodiment and / or aspect of the invention may be applied to all other embodiments and / or aspects of the invention.

[0002] Examples Example 1 – example liquid / powder concentrate combinations A-J of the invention

[0003] The liquid / powder concentrates in each of Examples A-J were mixed with 100ml water to form a stable end-use personal care composition having desirable viscosity, clarity, pH, cleansing and moisturising properties. Example 2 - Consumer data for shampoo 35 women between the ages of 16 and 82 were asked to use the Example J Shampoo concentrate for a minimum of 3 weeks. 1 dropped out due to a holiday. All testers were commercial off-the-shelf liquid shampoo users. Results Example 3 - Comparative data When the liquid / powder compositions of Examples A-J in Example 1 above are mixed with 100ml water, end-use personal care compositions are formed having desirable properties comparable to ready-made off-the-shelf bodywashes and shampoos. In contrast, existing powder only concentrates form end-use compositions with less desirable properties.

Claims

Claims 1. A kit of compositions for forming a personal care composition, the kit comprising: i) a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient, and one or more antimicrobial agent, wherein the first composition is contained within a water-soluble capsule; and ii) a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, and one or more amphoteric surfactant.

2. The kit of claim 1, wherein the first or second composition further comprises one or more alpha hydroxy acid.

3. The kit of claim 1 or claim 2, wherein the one or more emollient comprises PEG-7 Glyceryl Cocoate, PEG-30 Glyceryl Cocoate, PEG-40 Glyceryl Cocoate glycerin, sorbitol, coco glucoside, 2-Ethylhexyl Oleate, 2-Ethylhexyl Palmitate, 2-Ethylhexyl Laurate, 2-Ethylhexyl Cocoate, Isopropyl Palmitate, Isopropyl Myristate, Isopropyl Oleate, Decyl Oleate, Butyl Oleate, Methyl Oleate and / or Rapeseed Methyl Ester, optionally wherein the one or more emollient comprises a polyethylene glycol ether of glyceryl cocoate and / or glycerin, optionally wherein the one or more emollient comprises PEG-7 glyceryl cocoate.

4. The kit of any one of the preceding claims, wherein the one or more antimicrobial agent comprises phenoxyethanol.

5. The kit of any one of claims 1 to 3, wherein the one or more antimicrobial agent comprises phenoxyethanol, caprylyl glycol, propylene glycol and / or piroctone olamine.

6. The kit of any one of the preceding claims, wherein the one or more anionic comprises Sodium Coco Sulphate, Sodium Lauryl Sulphate, Sodium Lauryl Sulfoacetate, Sodium Cocoyl Glycinate, Disodium / Sodium Cocoyl Glutamate, Sodium Lauroyl Glutamate, Sodium Myristoyl Glutamate, Sodium PalmoylGlutamate, Sodium Lauroyl Sarcosinate, Sodium Lauryl Methyl Isoethionate, Disodium Lauryl Sulfosuccinate, and / or Sodium C14-C16 Olefin Sulphate.

7. The kit of any one the preceding claims, wherein the one or more amphoteric surfactant comprises a betaine, optionally wherein the one or more amphoteric surfactant comprises an amidopropyl betaine.

8. The kit of claim 7, wherein the amidopropyl betaine is selected from the group consisting of Cocoamidopropyl Betaine, Lauramidopropyl Betaine, Cocodimethyl Carboxymethyl Betaine, Capryl / Capramidopropyl Betaine, Sodium Cocoamphoacetate, Babassuamidopropyl Betaine, Cetyl Betaine, Coco-Betaine, Disodium Capryloamphodiacetate, Disodium Cocoamphodiacetate, Disodium Lauroamphodiacetate, Lauryl Betaine, Meadowfoamamidopropyl Betaine, Oleamidopropyl Betaine, SheaButteramidopropyl Betaine, Sodium Cocoabutteramphoacetate, Sodium Lauroamphoacetate, Sodium Olivamphoacetate, Soyamidopropyl Betaine, Cocamidopropyl Hydroxysultaine, Lauramidopropyl Hydroxysultaine, Lauryl Hydroxysultaine, and combinations thereof, optionally wherein the amidopropyl betaine is Cocoamidopropyl Betaine and / or Lauramidopropyl Betaine.

9. The kit of any one of claims 2 to 8, wherein the one more alpha hydroxy acid is present in the second composition and comprises citric acid.

10. The kit of any one of the preceding claims, wherein the first composition further comprises a fragrance.

11. The kit of any one of the preceding claims, wherein the first composition further comprises a conditioning agent, optionally wherein the conditioning agent comprises Silicone Quaternium-20, Silicone Quaternium-24, cyclomethicone, and / or dimethicone or a derivative thereof.

12. The kit of any one the preceding claims, wherein the second composition further comprises a thickener, optionally wherein the thickener comprises hydroxypropyl methylcellulose.

13. The kit of any one the preceding claims, wherein the one or more emollient is present in an amount of from about 60% to about 90% by weight based on the weight of the first composition; and / or wherein the one or more antimicrobial agent is present in an amount of from about 5% to about 25% by weight based on the weight of the first composition; and / or wherein the one or more anionic surfactant is present in an amount of from about 40% to about 70% by weight based on the weight of the second composition; and / or wherein the one or more amphoteric surfactant is present in an amount from about 25% to about 60% by weight based on the weight of the second composition.

14. The kit of any one of claims 2 to 13, wherein the one or more alpha hydroxy acid is present in an amount of from about 1% to about 10% by weight, based on the weight of the second composition.

15. The kit of any one of the preceding claims, wherein the water-soluble capsule is formed of polyvinyl alcohol.

16. A method of using the kit as defined in any one of claims 1 to 15, wherein the method comprises mixing together the first and second compositions with water to form a personal care composition.

17. The method of claim 16, wherein the first and second compositions are diluted about 4-fold to about 6-fold with water.

18. Use of the kit as defined in any one of claims 1 to 15, to improve viscosity of a personal care composition, improve stability of a personal care composition, improve cleansing abilities of a personal care composition, improve moisturising abilities of a personal care composition, reduce skin dryness, reduce plastic waste, reduce transport costs and / or reduce storage space requirements.

19. A kit comprising: (i) a liquid or gel composition comprising one or more emollient, and one or more antimicrobial agent,wherein the liquid or gel composition is contained within a water-soluble capsule; and (ii) instructions for using the liquid or gel composition with a powder composition, the powder composition comprising one or more anionic surfactant, and one or more amphoteric surfactant.

20. A kit comprising: (i) a powder composition comprising one or more anionic surfactant, and one or more amphoteric surfactant; and (ii) instructions for using the powder composition with a liquid or gel composition, the liquid or gel composition comprising one or more emollient, and one or more antimicrobial agent.

21. A product for diluting with water to form a personal care composition, comprising a water-soluble capsule, wherein the water-soluble capsule comprises: (i) a first compartment containing a first composition, wherein the first composition is a liquid or gel and comprises one or more emollient, and one or more antimicrobial agent; and (ii) a second compartment containing a second composition, wherein the second composition is a powder and comprises one or more anionic surfactant, and one or more amphoteric surfactant.

22. The product of claim 21, wherein the first composition further comprises a fragrance and / or one or more conditioning agent, and / or wherein the second composition further comprises one or more alpha hydroxy acid and / or one or more thickener.

23. The product of any one of claims 21 or 22, wherein the emollient comprises PEG-7 glyceryl cocoate, and / or wherein the antimicrobial agent comprises phenoxyethanol, and / orwherein the anionic surfactant comprises Sodium Lauryl Sulphate, Sodium Coco Sulphate, Sodium Lauryl Sulfoacetate, Sodium C14-C16 olefin sulfonate and / or Disodium Lauryl Sulfosuccinate, and / or wherein the amphoteric surfactant comprises Cocamidopropyl Betaine and / or Lauramidopropyl Betaine.

24. The product of any one of claims 21 to 23, wherein the emollient is present in an amount of from about 60% to about 90% by weight based on the weight of the first composition, and / or wherein the antimicrobial agent is present in an amount of from about 5% to about 25% by weight based on the weight of the first composition, and / or wherein the anionic surfactant is present in an amount of from about 40% to about 70% by weight based on the weight of the second composition, and / or wherein the amphoteric surfactant is present in an amount from about 25% to about 60% by weight based on the weight of the second composition.

25. A personal care composition comprising / consisting of: a. 1%-5% w / w emollient; b. 0.2%-0.8% w / w antimicrobial agent; c. optionally 0.1%-1% conditioning agent; d. 2%-10% w / w anionic surfactant; e. 2%-8% w / w amphoteric surfactant; f. optionally 0.1%-1% w / w alpha hydroxy acid; g. optionally 0.1-2% w / w thickener; and h. 75%-90% w / w water.

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