Hair care composition

Abstract

Disclosed is a hair care composition comprising: i) a nonionic surfactant comprising a fatty alcohol ethoxylate or polyethoxylated monoester having an HLB of 12-17; and ii) a sebum inhibiting active selected from capryloyl glycine, sarcosine, or mixtures thereof, wherein the composition comprises the nonionic surfactant in an amount of 0.35% to 15% by weight of the composition; the composition comprises at least 40% water by weight of the composition; the composition is a leave-on composition, and the viscosity of the composition is 2000 cps or less.

Description

[Technical field]

[0001] The present invention relates to hair care compositions, preferably leave-on compositions. In particular, the present invention relates to hair care compositions comprising a sebum-inhibiting active selected from capryloyl glycine, sarcosine, or mixtures thereof. [Background technology]

[0002] Hair care compositions are formulated for a specific purpose, such as cleansing or conditioning benefits, or a combination of the two. Preferred hair care compositions provide more than simple cleansing and conditioning benefits.

[0003] The scalp and hair become soiled due to contact with the surrounding environment and by sebum secreted from the hair follicles. The accumulation of sebum and environmental dirt causes the hair to become dirty, greasy and unattractive. To remedy these effects, hair needs to be shampooed regularly. Although sebum is naturally present on the scalp, it is often considered a negative beauty and health indicator in association with oily hair and may even be linked to more serious conditions such as seborrheic dermatitis.

[0004] Sarcosine is a natural amino acid and a methylated derivative of the essential amino acid glycine found in the body. It is also a precursor of the glycine amino acid and is therefore believed to be involved in the construction of skin-building macromolecules such as collagen and elastin. In the body, sarcosine can be obtained from the diet (egg yolk, legumes) or from the metabolism of glycine. It has been studied and found to have the ability to reduce the conversion of testosterone to DHT by inhibiting 5α-reductase 1 gene expression, thereby reducing the overproduction of sebum in the scalp.

[0005] Capryloyl glycine is an amide of glycine (an amino acid) and caprylic acid (a fatty acid containing 8 carbon atoms in the chain). It can provide protection and conditioning to the skin by repairing the "acid barrier". It has also been shown to reduce excess sebum activity as modeled by 5α-reductase assessment. Summary of the Invention [Problem to be solved by the invention]

[0006] The present inventors have unexpectedly discovered that a sebum-inhibiting active selected from capryloyl glycine, sarcosine, or mixtures thereof, can be stabilized with certain nonionic surfactants in aqueous leave-on formulations containing large amounts of water, thereby providing desirable sensory and sebum-inhibiting benefits to the scalp and / or hair.

[0007] US2004096528A1 (Daniel A. Miser et al.) discloses a creamy skin cleanser containing 2% by weight polysorbate 20, 1% by weight capryloyl glycine, and 63% by weight water.

[0008] WO2013102248A2 (Johnson & Johnson) discloses a sunscreen composition comprising a mixture containing 0.5% by weight of steareth-21 and polysorbate-20, 0.5% by weight of capryloyl glycine, sarcosine and 58% water (Examples 2 and 3). D2 discloses that the viscosity of the compositions of Examples 2 and 3 is higher than 5000 cps.

[0009] XP055974989 discloses an anti-dandruff scalp lotion. It contains polysorbate 20, sarcosine, capryloyl glycine, and water. However, the amounts of these ingredients are not disclosed.

[0010] XP055974973 discloses an oil-controlling treatment that contains oleth-20, capryloyl glycine and water, however the amounts of these ingredients are not disclosed. [Means for solving the problem]

[0011] In a first aspect, the present invention provides a method for producing a composition comprising the steps of: i) a nonionic surfactant containing an aliphatic alcohol ethoxylate or polyethoxylated monoester having an HLB of 12 to 17, and ii) a sebum-inhibiting active selected from capryloyl glycine, sarcosine or mixtures thereof; A hair care composition comprising: The composition comprises the nonionic surfactant in an amount of 0.35% to 15% by weight of the composition, the composition comprises at least 40% by weight of water of the composition, the composition is a leave-on composition, and the viscosity of the composition is 2000 cps or less.

[0012] In a second aspect, the present invention relates to a non-therapeutic method of treating hair or scalp comprising applying to the scalp or hair a composition of the first aspect.

[0013] In a third aspect, the present invention relates to a non-therapeutic method of providing a sebum control benefit comprising applying a composition of the first aspect to the hair or scalp surface of an individual.

[0014] In a fourth aspect, the present invention relates to a composition of the first aspect for use in providing a sebum suppression benefit to the scalp or hair.

[0015] All other aspects of the present invention will become more readily apparent in light of the following detailed description and examples. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hair care composition As used herein, "hair care composition" is meant to include compositions for topical application to mammalian, particularly human, hair and / or scalp. Such compositions can generally be classified as leave-on or rinse-off and include any product applied to the human body to improve appearance, cleansing, odor control or even general aesthetics. The compositions of the present invention may be in the form of a liquid, lotion, cream, foam, scrub, gel or bar. Non-limiting examples of such compositions include leave-on hair lotions, creams, and rinse-off shampoos, conditioners, shower gels or toilet bars. The compositions of the present invention are preferably hair treatment compositions, more preferably leave-on compositions, i.e. compositions intended to be applied to the hair and / or scalp without a rinsing step.

[0017] HLB value "HLB value" refers to a value that defines the affinity of a surfactant for water or oil. The HLB number is calculated for nonionic surfactants, and the values ​​for these surfactants range from 0 to 20.

[0018] others Except in the examples, or where otherwise expressly indicated, all numbers in this specification expressing quantities of ingredients or reaction conditions, physical properties and / or uses of ingredients may be understood to be modified by the term "about."

[0019] All amounts are based on the weight of the final hair care composition unless otherwise specified.

[0020] It should be noted that when specifying any range of values, any particular upper value may be associated with any particular lower value.

[0021] For the avoidance of doubt, the term "comprising" is intended to mean "including" but not necessarily "consisting of" or "composed of." In other words, the listed steps or options need not be exhaustive.

[0022] The disclosure of the invention found in this specification should be considered to cover all embodiments found in the claims as being multiple dependent on each other, regardless of the fact that the claims may be viewed as having no multiple dependencies or as being non-repetitive.

[0023] Where features are disclosed with respect to a particular embodiment of the invention (e.g., a composition of the invention), such disclosure should be deemed to apply mutatis mutandis to any other embodiment of the invention (e.g., a method of the invention).

[0024] Sebum-suppressing active substance The composition of the present invention comprises a sebum inhibiting active selected from capryloyl glycine, sarcosine or mixtures thereof. It is preferred that the composition comprises from 0.01 to 10% by weight of the composition of the sebum inhibiting active, preferably from 0.05 to 5%, more preferably from 0.05 to 3%.

[0025] Sarcosine according to the present invention is N-methylglycine (C 3 H 7 NO 2 Its CAS number is 107-97-1 and the compound has the following general formula (I):

[0026] [ka]

[0027] When the sebum-suppressing active is sarcosine, the composition may contain glycerin, which can cause a sticky feeling, so it is preferred that the composition contain no more than 10% glycerin by weight of the composition, more preferably no more than 5% glycerin, and most preferably no more than 1% glycerin.

[0028] The composition may contain 0.1 to 10% glycerin by weight of the composition, preferably 0.2 to 5% glycerin by weight, more preferably 0.5 to 2% glycerin by weight, and most preferably 0.1 to 1% glycerin by weight.

[0029] When the sebum-inhibiting active is sarcosine, the composition may contain, based on the weight of the composition, 0.01 to 10% by weight of sarcosine, preferably 0.05 to 5% by weight of sarcosine, more preferably 0.1 to 3% by weight of sarcosine, and even more preferably 0.1 to 1% by weight of sarcosine.

[0030] Capryloyl glycine is a functional ingredient that has many benefits, including suppressing excess sebum production. It is also known as N-(1-oxooctyl)glycine (C10H19NO3). Its CAS number is 14246-53-8, and the compound has the following general formula (II):

[0031] [ka]

[0032] When the sebum-inhibiting active is capryloyl glycine, the composition may comprise 0.01-10%, preferably 0.05-5%, more preferably 0.05-3%, even more preferably 0.1-1.5%, even more preferably 0.1-1% capryloyl glycine by weight of the composition. When the sebum-inhibiting active is capryloyl glycine, the composition may comprise no more than 10% glycerin by weight of the composition, more preferably no more than 5%, even more preferably no more than 1%, and most preferably substantially no glycerin, to avoid a sticky feel.

[0033] Nonionic Surfactants The composition of the present invention comprises a nonionic surfactant comprising a fatty alcohol ethoxylate or polyethoxylated monoester having an HLB of 12-17, preferably 15-17.

[0034] The nonionic surfactant of the present invention preferably comprises a C12-C18 fatty alcohol ethoxylate, preferably selected from oleth-10, steareth-10, ceteth-10, ceteareth-12, laureth-9, steareth-20, oleth-20, ceteth-20, ceteareth-20, ceteareth-25, C12-13 pareth-23, laureth-23, more preferably steareth-20, oleth-20, ceteth-20, ceteareth-20, even more preferably oleth-20 and steareth-20, most preferably oleth-20.

[0035] The nonionic surfactant of the present invention preferably comprises a polyethoxylated monoester, preferably selected from polysorbate 21, polysorbate 60, polysorbate 80, polysorbate 40, polysorbate 20, and more preferably comprises polysorbate 20.

[0036] The composition of the present invention contains a nonionic surfactant in an amount of 0.35 to 15% by weight, preferably 0.4 to 10% by weight, more preferably 0.5 to 5% by weight, and even more preferably 0.5 to 3% by weight of the composition.

[0037] Typically, the leave-on composition is substantially free of cleansing surfactants. Thus, the composition preferably contains less than 1% by weight, more preferably less than 0.5% by weight, even more preferably less than 0.1% by weight, and most preferably 0 to 0.01% by weight of cleansing surfactants. The cleansing surfactant is typically an anionic surfactant such as an alkyl sulfate and / or an alkyl ether sulfate.

[0038] In order to obtain the desired sensory effect, the compositions of the present invention preferably contain no other surfactants other than the nonionic surfactants described above.

[0039] Moisturizer The compositions of the invention preferably comprise a humectant, preferably selected from the group consisting of 1,2-glycols selected from caprylyl glycol, pentylene glycol, 1,2-hexanediol and C15-18 glycols.

[0040] The humectant can also be hyaluronic acid.

[0041] The composition of the present invention may contain a moisturizer in an amount of 0.01 to 10% by weight, preferably 0.1 to 5% by weight, and more preferably 0.3 to 2% by weight of the composition.

[0042] Hair care composition The hair care composition according to the present invention comprises an aqueous cosmetically acceptable carrier. To provide a desired sensation (e.g., water-like sensation, clean feeling, freshness), the composition of the present invention comprises at least 40% water by weight of the composition, preferably 40 to 98% water by weight, more preferably 60 to 98% water by weight, even more preferably 65 to 95% water by weight, even more preferably 70 to 95% water by weight, and even more preferably 80 to 95% water by weight.

[0043] "Lipophilic substances" in the context of the present invention means substances that tend to combine with or dissolve in lipids, oils or fats. To provide the desired sensation, the compositions of the present invention may contain up to 10% of lipophilic substances by weight of the composition, preferably up to 5%, more preferably up to 2%, even more preferably up to 1%, even more preferably up to 0.5%. Lipophilic substances may include oils, fatty alcohols, fatty acids, fatty esters, waxes, silicones, etc.

[0044] The hair care composition according to the invention is a leave-on composition, for example a hair lotion, a hair serum.

[0045] In order to provide a desired sensation (e.g., cleanliness or freshness), the composition according to the present invention has a viscosity of 2000 cps or less, preferably 1000 cps or less, more preferably 100 cps or less. The viscosity of the composition is preferably 1 to 2000 cps, more preferably 2 to 1500 cps, even more preferably 5 to 1000 cps, and most preferably 10 to 100 cps.

[0046] The composition is preferably a liquid solution and can be a hair lotion or a hair serum. More preferably, the composition is a clear solution.

[0047] The transmittance of the composition is preferably at least 85%, preferably at least 90%, more preferably at least 95%. The transmittance of the composition can be measured at a wavelength of 400 nm.

[0048] The pH of the composition is preferably 4 to 6, and more preferably 4.5 to 5.5.

[0049] Preferably, the composition may include an antidandruff agent. The antidandruff agent is a compound active against dandruff, typically an antibacterial agent, preferably an antifungal agent. The antidandruff agent typically exhibits a minimum inhibitory concentration of about 50 mg / mL or less against Malassezia.

[0050] Whenever present, hair care compositions of the present invention preferably comprise from 0.01 to 5%, more preferably from 0.1 to 2%, even more preferably from 0.5 to 1% by weight of the composition of an anti-dandruff agent.

[0051] The anti-dandruff agent is preferably selected from piroctone compounds, azoles, salicylic acid, and combinations thereof. The azoles include ketoconazole and climbazole, and are preferably climbazole. It is preferred that the anti-dandruff agent is a piroctone compound, and more preferably piroctone olamine.

[0052] The hair care composition may further comprise a conditioning agent that provides conditioning benefits.Preferably, the hair care composition comprises discretely dispersed droplets of a water-insoluble conditioning agent with an average droplet size (D3,2) of less than 15 microns, preferably less than 10 microns, more preferably less than 5 microns, and most preferably less than 3 microns.The average droplet size (D3,2) of the water-insoluble conditioning agent can be measured by laser light scattering techniques, for example using a Malvern Instruments 2600D particle sizer.

[0053] The water-insoluble conditioning agents may include non-silicone conditioning agents, including non-silicone oily or fatty materials such as hydrocarbon oils, fatty esters, and mixtures thereof. Preferably, the water-insoluble conditioning agent is an emulsified silicone oil.

[0054] Suitable silicones include polydiorganosiloxanes, especially polydimethylsiloxanes with the CTFA designation dimethicone.Suitable for use in the compositions of the present invention (especially shampoos and conditioners) are polydimethylsiloxanes with hydroxyl end groups with the CTFA designation dimethiconol.Also suitable for use in the compositions of the present invention are silicone gums with slight crosslinking, such as those described in WO96 / 31188.Preferably, the silicone oil comprises dimethicone, dimethiconol, or a mixture thereof.

[0055] The emulsified silicone suitable for use in the hair care composition of the present invention is available as preformed silicone emulsion from silicone suppliers such as Dow Corning and GE silicones.The use of such preformed silicone emulsion is preferred for ease of processing and control of silicone particle size.Such preformed silicone emulsion typically further comprises a suitable emulsifier and can be prepared by chemical emulsification process such as emulsion polymerization or by mechanical emulsification using high shear mixer.Examples of suitable preformed silicone emulsion include DC1785, DC1788, DC7128, etc., all available from Dow Corning.These are dimethiconol / dimethicone emulsions.

[0056] Another type of silicone that can be used is a functionalized silicone, such as an amino-functional silicone, which means a silicone that contains at least one primary, secondary, tertiary amine group, or quaternary ammonium group. Examples of suitable amino-functional silicones include polysiloxanes having the CTFA designation "amodimethicone."

[0057] The water-insoluble conditioning agent is typically present in the hair care composition of the present invention in an amount of from 0.05 to 15%, preferably from 0.1 to 10%, more preferably from 0.5 to 8%, and most preferably from 1 to 5%, based on the total weight of the hair care composition.

[0058] Preservatives may also be incorporated into the hair care compositions of the present invention to prevent the growth of potentially harmful microorganisms. Suitable conventional preservatives include alkyl esters of parahydroxybenzoic acid, hydantoin derivatives, propionate salts, and various quaternary ammonium compounds. Illustrative and non-limiting examples of the types of preservatives that can be used in the present invention include, for example, phenoxyethanol, sodium salicylate, methylparaben, butylparaben, propylparaben, diazolidinyl urea, sodium dehydroacetate, benzyl alcohol, sodium benzoate, iodopropynyl butylcarbamate, caprylyl glycol, disodium EDTA, or mixtures thereof. In a particularly preferred embodiment, the preservative is sodium benzoate, phenoxyethanol, sodium salicylate, or mixtures thereof. Preservatives are preferably used in an amount ranging from 0.01 to 2% by weight of the hair care composition.

[0059] Furthermore, the hair care composition of the present invention preferably comprises a cosmetic ingredient. Preferably, the cosmetic ingredient is selected from the group consisting of silicones, antibacterial agents other than antidandruff agents, foaming promoters, fragrances, encapsulating agents (e.g. encapsulated fragrances), dyes, colorants, pigments, preservatives, thickeners, proteins, phosphate esters, buffers, pH adjusters, pearlescent agents (e.g. mica, titanium dioxide, titanium dioxide coated mica, ethylene glycol distearate (INCI glycol distearate)) and / or opacifiers, viscosity adjusters, emollients, sunscreens, emulsifiers, sensory active agents (e.g. menthol and menthol derivatives), vitamins, mineral oils, essential oils, lipids, natural active agents, natural hair nutrients such as glycerin, plant extracts, fruit extracts, sugar derivatives and amino acids, microcrystalline cellulose, and mixtures thereof.

[0060] Preferably, the composition of the present invention contains 0.01 to 20 wt %, more preferably 0.05 to 10 wt %, even more preferably 0.075 to 7.5 wt %, and most preferably 0.1 to 5 wt % of at least one cosmetic ingredient, based on the total weight of the composition.

[0061] The compositions of the present invention may also include synergistic antimicrobial compounds that are used in combination with the antimicrobial active to enhance its properties and provide a synergistic antimicrobial effect when further inhibiting bacterial / fungal growth. Non-limiting examples of these compounds include compounds with an alcohol group (e.g., honokiol, magnolol, or paeonol), piperazines, and phenolic compounds found in natural plant extracts, namely thymol and terpeniol.

[0062] Methods and Uses The present invention provides a method of treating the scalp or hair comprising applying to the scalp or hair a composition of the first aspect. The method is non-therapeutic in nature. Preferably, it is for cosmetic purposes.

[0063] The present invention provides a method of providing a sebum control benefit comprising applying a composition of the first aspect to the hair or scalp surface of an individual. The method is non-therapeutic in nature. Preferably, it is for cosmetic purposes.

[0064] The present invention also provides the use of the composition of the first aspect to provide a sebum suppression effect on the scalp or hair. The use is non-therapeutic in nature. Preferably, it is for cosmetic purposes. It also provides the use of the composition of the first aspect to provide a sensory effect such as a feeling of cleanliness or freshness.

[0065] Usage Mode The compositions of the present invention are rinse-off or leave-on compositions, preferably leave-on compositions, i.e. lotions or serums, primarily intended for topical application to the scalp and / or at least a portion of the hair of an individual.

[0066] When the composition is a leave-on composition, it is applied directly to the scalp and / or topically to the hair and then massaged into the hair and scalp.

[0067] In order to maximise the opportunity for the composition to come into contact with the hair and / or scalp and exert its sebum suppressing effect, the leave-on composition is preferably left on the hair / scalp for at least 1 hour, more preferably 2-24 hours, before rinsing and / or washing the hair / scalp.

[0068] The invention is further illustrated by the following non-limiting examples in which all percentages given are weight percentages based on total weight unless otherwise specified.

[0069] These examples are intended to illustrate the invention and are not intended to limit the invention to those specific examples. EXAMPLES

[0070] The nonionic surfactants listed in Table 1 were subjected to several tests, as detailed below.

[0071] Table 1 [Table 1]

[0072] Example 1 This example demonstrated that nonionic surfactants within the scope of the present invention can improve the stability of compositions containing a sebum suppressing active, sarcosine, according to the present invention. Compositions are prepared according to the formulations detailed in Table 2. All ingredients are expressed as weight percent of the total formulation and as the level of active ingredient.

[0073] Table 2 [Table 2]

[0074] method The appearance of the composition is observed after 24 hours. If the composition is well emulsified and stable, it will be clear with no phase separation or visible solid precipitation. Unstable formulations are defined as those that exhibit phase separation or turbidity. The viscosity of the composition was examined at room temperature. The transmittance of the composition was examined using a Cary Series UV-Vis spectrophotometer. The transmittance values ​​of the composition were measured at a wavelength of 400 nm.

[0075] result The appearance of the compositions is summarized in Table 3.

[0076] Table 3 [Table 3]

[0077] Samples 1 to 3, which contain combinations of specific nonionic surfactants and sebum active substances within the scope of the present invention, showed good stability compared to Samples A to C, which are outside the scope of the present invention.

[0078] Example 2 This example shows that nonionic surfactants within the scope of the present invention can improve the stability of compositions containing a sebum suppressing active, capryloyl glycine, according to the present invention. Compositions are prepared according to the formulations detailed in Table 4. All ingredients are expressed as weight percent of the total formulation and as the level of active ingredient.

[0079] Table 4 [Table 4]

[0080] method After 24 hours, the appearance of the composition is observed and the viscosity and transmittance of the composition are examined using the methods disclosed in Example 1.

[0081] result The appearance of the compositions is summarized in Table 5.

[0082] Table 5 [Table 5]

[0083] Samples 4-6, which contain combinations of specific nonionic surfactants and sebum actives within the scope of the present invention, showed good stability compared to Samples D-F, which are outside the scope of the present invention.

[0084] Example 3 This example demonstrated the effect of dosage of a nonionic surfactant according to the present invention on the stability of a composition containing a sebum-suppressing active, sarcosine. Compositions are prepared according to the formulations detailed in Table 6. All ingredients are expressed as weight percent of the total formulation and as the level of active ingredient.

[0085] Table 6 [Table 6]

[0086] method After 24 hours, the appearance of the composition is observed and the viscosity and transmittance of the composition are examined using the methods disclosed in Example 1.

[0087] result The appearance of the compositions is summarized in Table 7.

[0088] Table 7 [Table 7]

[0089] Samples 7-10, which contain combinations of specific nonionic surfactants and sebum actives with nonionic surfactant dosages within the range of the present invention, showed good stability compared to Samples GH, which are outside the range of the present invention.

[0090] Example 4 This example demonstrates that the compositions of the present invention can provide a sebum suppression sensation to the hair or scalp. Leave-on compositions are prepared according to the formulations detailed in Table 8. All ingredients are expressed as a weight percent of the total formulation and as the level of active ingredient.

[0091] Table 8 [Table 8]

[0092] The viscosity and transmittance of Sample 11 are examined using the methods disclosed in Example 1. The viscosity is 40 cps and the transmittance is about 97.0%.

[0093] The compositions in Table 8 (Sample 11 vs. Sample I) were used and rated by 90 consumers (with oily scalp).

[0094] The results showed that Sample 11 was significantly (at least 95% confidence level) higher in the following attributes compared to Sample I (placebo): -Clear oil suppression effect -I feel like my scalp is less oily. -After use, hair and scalp feel refreshed and non-greasy.

[0095] From the results, it can be concluded that the stable formulation sample 11 within the scope of the present invention can exert a sebum-inhibiting effect, particularly in eliminating greasiness of hair and scalp.

Claims

1. i) a nonionic surfactant comprising a fatty alcohol ethoxylate or polyethoxylated monoester having an HLB of 12 to 17; and ii) a sebum-inhibiting active selected from capryloyl glycine, sarcosine or mixtures thereof; A hair care composition comprising: The composition comprises the nonionic surfactant in an amount of 0.35% to 15% by weight of the composition; the composition comprises at least 40% by weight of the composition of water; the composition is a leave-on composition, and the viscosity of the composition is 2000 cps or less.

2. 2. The composition of claim 1, wherein the nonionic surfactant comprises a C12-C18 fatty alcohol ethoxylate, preferably selected from oleth-10, steareth-10, ceteth-10, ceteareth-12, laureth-9, steareth-20, oleth-20, ceteth-20, ceteareth-20, ceteareth-25, C12-13 pareth-23, laureth-23.

3. 3. The composition according to claim 1 or 2, wherein the nonionic surfactant comprises a polyethoxylated monoester, preferably selected from polysorbate 21, polysorbate 60, polysorbate 80, polysorbate 40, polysorbate 20.

4. A composition according to any one of claims 1 to 3, wherein the composition comprises the nonionic surfactant in an amount of from 0.4 to 10%, preferably from 0.5 to 5%, more preferably from 0.5 to 3% by weight of the composition.

5. A composition according to any one of the preceding claims, wherein the composition comprises the sebum suppressing active in an amount of from 0.01 to 10%, preferably from 0.05 to 5% by weight of the composition.

6. 6. The composition according to any one of the preceding claims, wherein the composition comprises water in an amount of 40-98%, preferably 60-95%, more preferably 80-95% by weight of the composition.

7. A composition according to any one of claims 1 to 6, wherein when the sebum suppressing active is sarcosine, the composition further comprises glycerin.

8. The composition according to any one of claims 1 to 7, wherein the composition comprises a moisturizer.

9. The composition according to any one of claims 1 to 8, wherein the pH of the composition is between 4 and 6, preferably between 4.5 and 5.

5.

10. The composition according to any one of claims 1 to 9, wherein the composition does not contain any other surfactant in addition to the nonionic surfactant.

11. The composition according to any one of claims 1 to 10, wherein the composition comprises no more than 10% lipophilic substances.

12. The composition of any one of claims 1 to 11, wherein the composition is a liquid solution.

13. A non-therapeutic method of treating the scalp or hair, comprising applying to said scalp or hair a composition according to any one of claims 1 to 10.

14. A non-therapeutic method of providing a sebum suppression benefit, comprising the step of applying to solid hair or scalp surfaces a composition according to any one of claims 1 to 10.

15. A composition according to any one of claims 1 to 10 for use in providing a sebum suppression benefit to the scalp or hair.

Images