Composition for caring for the hair and / or the scalp
A composition with tephrosia purpurea seed extract, niacinamide, and xanthine derivatives addresses hair thinning and loss by inhibiting cortisol, offering effective hair and scalp care.
Patent Information
- Application Number
- PCT/CN2024/101494
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2026-01-02
AI Technical Summary
Certain hair types are naturally thin and/or fine, and any type of hair can diminish in quality and/or quantity over time due to factors such as natural greasiness, sweat, shredded skin cells from the scalp, pollution, and dirt, with cortisol-induced stress being a significant contributor to hair loss.
A composition comprising tephrosia purpurea seed extract, niacinamide, and xanthine derivatives is formulated to inhibit cortisol levels, promoting hair and scalp care.
The composition effectively inhibits cortisol levels, thereby preventing or reducing hair loss by enhancing the cortisol-inhibiting properties of tephrosia purpurea seed extract with niacinamide and xanthine derivatives.
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Abstract
Description
COMPOSITION FOR CARING FOR THE HAIR AND / OR THE SCALPTECHNICAL FIELD
[0001] The present invention relates to a cosmetic composition. In particular, the present invention relates to a composition for caring for the hair and / or the scalp. The present invention also relates to a process for caring for the hair and / or the scalp.BACKGROUND ART
[0002] Certain hair types are naturally thin and / or fine. In addition, any type of hair can diminish in quality and / or quantity over time by age and / or due to factors such as natural greasiness, sweat, shredded skin cells from the scalp, pollution, and dirt.
[0003] Cortisol, a stress-induced emotional hormone, is one important root cause towards hair loss.
[0004] Systemic and local cortisol increase, followed by follicular inflammation and follicle damage, finally may lead to hair loss.
[0005] Thus, it is desired to have a n effective solution for cortisol inhibition.SUMMARY OF THE INVENTION
[0006] An object of the present invention is thus to develop compositions for caring for keratin materials, which can result in a better effect on cortisol inhibition.
[0007] Thus, according to a first aspect, the present invention provides a composition for caring for the hair and / or the scalp comprising:
[0008] a) at least one tephrosia purpurea seed extract;
[0009] b) niacinamide and / or derivatives thereof; and
[0010] c) xanthine and / or derivatives thereof;
[0011] wherein the weight ratio of the tephrosia purpurea seed extract to the xanthine and / or derivatives thereof is equal to or less than 4.
[0012] According to a second aspect, the present invention provides a cosmetic process for caring for the hair and / or the scalp comprising applying the composition according to the present invention onto the hair and / or the scalp.
[0013] The inventors have found that the composition according to the present invention can effectively inhibit cortisol level.
[0014] The inventors also found that niacinamide and / or derivatives thereof in combination with xanthine and / or derivatives thereof can effectively promote the ability of a tephrosia purpurea seed extract for inhibiting the cortisol level in a subject.
[0015] According to a third aspect, the present invention provides use of a combination of niacinamide and / or derivatives thereof and xanthine and / or derivatives thereof for promoting the ability of a tephrosia purpurea seed extract for inhibiting the cortisol level in a subject.
[0016] Other subjects and characteristics, aspects and advantages of the present invention will emerge even more clearly on reading the detailed description and the examples that follow.
[0017] DETAILD DESCRIPTION OF THE INVENTION
[0018] As used herein, unless otherwise indicated, the limits of a range of values are included within this range, in particular in the expressions "between…and…" and "from…to…" .
[0019] As used herein, the term "comprising" is to be interpreted as encompassing all specifically mentioned features as well optional, additional, unspecified ones.
[0020] As used herein, the use of the term "comprising" also discloses the embodiment wherein no features other than the specifically mentioned features are present (i.e., "consisting of" ) .
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the field the present invention belongs to. When the definition of a term in the present description conflicts with the meaning as commonly understood by those skilled in the field the present invention belongs to, the definition described herein shall apply.
[0022] Unless otherwise specified, all numerical values expressing amount of ingredients and the like used in the description and claims are to be understood as being modified by the term "about" . Accordingly, unless indicated to the contrary, the numerical values and parameters described herein are approximate values which are capable of being changed according to the desired performance obtained as required.
[0023] As used herein, the expression "at least one" used in the present description is equivalent to the expression "one or more" .
[0024] According to the first aspect, the composition of the present invention comprises:
[0025] a) at least one tephrosia purpurea seed extract;
[0026] b) niacinamide and / or derivatives thereof; and
[0027] c) xanthine and / or derivatives thereof;
[0028] wherein the weight ratio of the tephrosia purpurea seed extract to the xanthine and / or derivatives thereof is equal to or less than 4.
[0029] Tephrosia purpurea seed extract
[0030] The composition of the present invention comprises at least one tephrosia purpurea seed extract.
[0031] Tephrosia purpurea seed extract belongs to extracts of wild indigo. A specific extraction from the seeds of this plant has been performed to obtain a condensate enriched in specific sugars including stachyose and ciceritol. This exclusive extract has demonstrated its unique biological capabilities to break down the cortisol production by skin cells, activate the release of a natural calming neuropeptide acting on mood, and visibly improve skin tone within two weeks.
[0032] The material is commercially available from Givaudan SA under the trademark
[0033] Advantageously, the tephrosia purpurea seed extract is present in the composition according to the present invention in an amount ranging from 0.0001wt. %to 10wt. %, preferably from0.0005wt. %to 5wt. %, more preferably from 0.001wt. %to 3wt. %, most preferably from 0.001wt. %to 1 wt. %, relative to the total weight of the composition.
[0034] Niacinamide and / or derivatives thereof
[0035] The composition of the present invention comprises niacinamide and / or derivatives thereof.
[0036] Niacinamide, also called Vitamin B3, is a compound of the following formula (I) :
[0037] Niacinamide derivatives that may be mentioned include, for example, nicotinic acid, nicotinyl alcohol, nicotinuric acid, nicotinyl hydroxamic acid, nicotinic acid esters such as tocopherol nicotinate, amides derived from niacinamide by substitution of the hydrogen of-CONH2, products from reaction with carboxylic acids and amino acids, esters of nicotinyl alcohol and of carboxylic acids such as acetic acid, salicylic acid, glycolic acid or palmitic acid.
[0038] Mention may also be made of the following niacinamide derivatives: 2-chloronicotinamide, 6-methylnicotinamide, 6-aminonicotinamide, N-methylnicotinamide, N, N-dimethylnicotinamide, N- (hydroxymethyl) nicotinamide, quinolinic acid imide, nicotinanilide, N-benzylnicotinamide, N-ethylnicotinamide, nifenazone, nicotinaldehyde, isonicotinic acid, methylisonicotinic acid, thionicotinamide, nialamide, 2-mercaptonicotinic acid, nicomol and niaprazine, methyl nicotinate and sodium nicotinate.
[0039] Advantageously, the niacinamide and / or derivatives thereof is present in the composition of the present invention in an amount ranging from 0.001wt. %to 20wt. %, preferably from 0.002wt. %to 15wt. %, more preferably from 0.005 wt. %to 10wt. %, even more preferably from 0.005wt. %to 8wt. %, relative to the total weight of the composition.
[0040] Xanthine and / or derivatives thereof
[0041] The composition of the present invention comprises xanthine and / or derivatives thereof.
[0042] Xanthine and / or derivatives thereof refers to one or more compounds corresponding to formula (II) below,
[0043] wherein R1, R2 and R3 are independent from each other H, substituted or unsubstituted C1to C6alkyl, or substituted or unsubstituted C1 to C6 alkenyl, wherein alkyl or alkenyl may be substituted with one or more substituent selected from hydroxyl, carboxyl, carbonyl, amino (said amino may be substituted with 1 or 2 C1 to C6 alkyl) or halogen.
[0044] Xanthine and / or derivatives thereof that may be mentioned includes, for example, xanthine, caffeine, theobromine, theophylline, paraxanthine, diprophylline, uric acid, dyphylline, and IBMX (3-isobutyl-l-methylxanthine) .
[0045] Mention may also be made of the following xanthine derivatives: acefylline, xanthinol nicotinate, diniprophylline, etamiphylline, etophylline, proxyphylline, pentophylline, propentophylline, pyridophylline, and bamiphylline.
[0046] Preferably, the xanthine and / or derivatives thereof is selected from xanthine, caffeine, theobromine, theophylline, paraxanthine, diprophylline, uric acid, dyphylline, IBMX (3-isobutyl-l-methylxanthine) , xanthinol nicotinate, acefylline, diniprophylline, etamiphylline, etophylline, proxyphylline, pentophylline, propentophylline, pyridophylline and mixtures thereof, and more preferably caffeine.
[0047] Preferably, the xanthine and / or derivatives thereof used according to the present invention is caffeine, which may be commercially available from the supplier BASF under the tradename of CAFFEINE.
[0048] Advantageously, the xanthine and / or derivatives thereof is present in the composition of the present invention in an amount ranging from 0.001wt. %to 15wt. %, preferably from 0.002wt. %to 10wt. %, and more preferably from 0.005 wt. %to 5wt. %, relative to the total weight of the composition.
[0049] Preferably, the weight ratio of the tephrosia purpurea seed extract to the xanthine and / or derivatives thereof is from 4: 1 to 0.001: 1, preferably from 3: 1 to 0.001: 1, more preferably from 2.5: 1 to 0.01: 1.
[0050] Preferably, the weight ratio of niacinamide and / or derivatives thereof to the xanthine and / or derivatives thereof is from 0.2: 1 to 20: 1, preferably from 0.5: 1 to 10: 1.
[0051] Water
[0052] The composition of the present invention may further comprise water.
[0053] Advantageously, water is present in the composition of the present invention in an amount ranging from 50wt. %to 99.99wt. %, preferably from 60 wt. %to 99.99wt. %, relative to the total weight of the composition.
[0054] Cosmetic active ingredients
[0055] Optionally, the composition of the present invention comprises one or more additional active ingredients for conditioning and / or caring for the hair and / or the scalp.
[0056] The skilled in the art can select the amount of the additional active ingredients according to desired purpose.
[0057] Adjuvants
[0058] The composition according to the present invention may also comprise additional adjuvants, such as fragrances, preservatives and so on.
[0059] The skilled in the art can select the amount of the additional adjuvants so as not to adversely impact the final use of the composition according to the present invention.
[0060] According to a preferred embodiment, the present invention provides a composition for caring for the hair and / or the scalp comprising, relative to the total weight of the composition:
[0061] a) from 0.001wt. %to 1wt. %of at least one tephrosia purpurea seed extract;
[0062] b) from 0.005wt. %to 8wt. %of niacinamide, and
[0063] c) from 0.005wt. %to 5wt. %of caffeine;
[0064] wherein the weight ratio of the tephrosia purpurea seed extract to caffeine is from 2.5: 1 to 0.01: 1.
[0065] Preparation and use
[0066] The composition according to the present invention can be prepared by mixing ingredients a) , b) and c) as essential ingredients, as well as additional ingredient (s) , as explained above.
[0067] The method and means to mix the above essential and optional ingredients are not limited. Any conventional method and means can be used to mix the above essential and optional ingredients to prepare the composition according to the present invention.
[0068] The composition of the present invention can be a rinse off or leave-on product.
[0069] The composition of the present invention can be used on both wet and dry hair and scalp.
[0070] According to the second aspect, the present invention provides a cosmetic process for caring for the hair and / or the scalp comprising applying the composition according to the present invention onto the hair and / or the scalp.
[0071] According to the third aspect, the present invention provides use of a combination of niacinamide and / or derivatives thereof and xanthine and / or derivatives thereof for promoting the ability of a tephrosia purpurea seed extract for inhibiting the cortisol level in a subject.
[0072] The subject can be animal or human being.
[0073] Niacinamide and / or derivatives thereof and xanthine and / or derivatives thereof are as defined above with respect to the composition according to the present invention.
[0074] Preferably, the weight ratio of the tephrosia purpurea seed extract to the xanthine and / or derivatives thereof is from 4: 1 to 0.001: 1, preferably from 3: 1 to 0.001: 1, more preferably from 2.5: 1 to 0.01: 1.
[0075] .
[0076] Preferably, the weight ratio of niacinamide and / or derivatives thereof to the xanthine and / or derivatives thereof is from 0.2: 1 to 20: 1, preferably from 0.5: 1 to 10: 1.EXAMPLES
[0077] The examples that follow are given as non-limiting illustrations of the present invention.
[0078] Main raw materials used, trade names and suppliers thereof are listed in Table 1.
[0079] Table 1
[0080] Invention Examples 1-3 and Comparative Examples 1-3
[0081] Compositions of invention examples (IE. ) 1-3 and comparative examples (CE. ) 1-4 were prepared with the components listed in Table 2 (the contents are expressed as weight percentages with regard to the total weight of each composition, unless otherwise indicated) :
[0082] Table 2
[0083] Compositions of invention examples 1-3 are compositions according to the present invention.
[0084] Composition of comparative example 1 does not have the weight ratio of the tephrosia purpurea seed extract to xanthine and / or derivatives thereof being equal to or less than 4.
[0085] Composition of comparative example 2 does not comprise tephrosia purpurea seed extract.
[0086] Composition of comparative example 3 does not comprise niacinamide and / or derivatives thereof.
[0087] Composition of comparative example 4 does not comprise xanthine and / or derivatives thereof.
[0088] Preparation procedure:
[0089] Compositions above were prepared by adding niacinamide (if presents) and caffeine (if presents) into water at room temperature (25℃) with stirring to obtain a homogenous system, then adding tephrosia purpurea seed extract (if presents) into the system with stirring.
[0090] Evaluation:
[0091] Cortisol inhibition effect obtained by each composition prepared above were determined as follows.
[0092] 1) using cell culture medium: (Dulbecco's Modified Eagle's Medium containing 10%fetal bovine serum, from Gibco) as blank control, and preparing testing samples with cell culture medium replacing water in compositions of invention examples 1-3 and comparative examples 1-4, respectively.
[0093] 2) applying 0.5ml of the testing samples or the blank control to primary human scalp derived keratinocytes (#2440 from Sciencell) in a 24-well cell culture plate, respectively;
[0094] 3) adding 10μM of cortisone as substrate of cortisol production into the 24-well cell culture plate.
[0095] 4) incubating for 24 hours, harvesting, and quantifying the cell culture medium for cortisol levels using a commercial ELISA assay kit (ab108665 from Abcam) .
[0096] 5) quantifying blank baseline cortisol level using cell culture medium without the addition of cortisone.
[0097] The cortisol inhibition effect of the testing samples against cortisol production was quantified as:
[0098] Inhibition%= (cortisol level in blank cell culture medium–cortisol level in testing samples) / (cortisol level in blank cell culture medium–blank baseline cortisol level) ×100%
[0099] The cortisol inhibition effect of each testing sample was recorded as the cortisol inhibition effect of each composition comprising the same concentrations of Tephrosia purpurea seed extract, niacinamide, and caffeine of invention examples 1-3 and comparative examples 1-4.
[0100] The cortisol inhibition effect obtained by compositions of invention examples 1-3 and comparative examples 1-4 were summarized in Table 3.
[0101] It can be seen from Table 3 that each composition of invention examples comprising tephrosia purpurea seed extract, niacinamide and caffeine with the ratio of tephrosia purpurea extract to caffeine less than 4 can effectively inhibit the cortisol level, so that it can be used to prevent or reduce hair loss.
Claims
1.A composition for caring for the hair and / or the scalp comprising:a) at least one tephrosia purpurea seed extract;b) niacinamide and / or derivatives thereof; andc) xanthine and / or derivatives thereof;wherein the weight ratio of the tephrosia purpurea seed extract to the xanthine and / or derivatives thereof is equal to or less than 4.2.Composition according to claim 1, wherein the tephrosia purpurea seed extract is an amount ranging from 0.0001 wt. %to 10 wt. %, preferably from 0.0005 wt. %to 5 wt. %, more preferably from 0.001 wt. %to 3 wt. %, most preferably from 0.001 wt. %to 1 wt. %, relative to the total weight of the composition.3.Composition according to claim 1 or 2, wherein the niacinamide and / or derivative is selected from 2-chloronicotinamide, 6-methylnicotinamide, 6-aminonicotinamide, N-methylnicotinamide, N, N-dimethylnicotinamide, N- (hydroxymethyl) nicotinamide, quinolinic acid imide, nicotinanilide, N-benzylnicotinamide, N-ethylnicotinamide, nifenazone, nicotinaldehyde, isonicotinic acid, methylisonicotinic acid, thionicotinamide, nialamide, 2-mercaptonicotinic acid, nicomol, niaprazine, methyl nicotinate, sodium nicotinate, and a mixture thereof.4.Composition according to any of claims 1 to 3, wherein the niacinamide and / or a derivative thereof is present in an amount ranging from 0.001 wt. %to 20 wt. %, preferably from 0.002 wt. %to 15 wt. %, and more preferably from 0.005 wt. %to 10 wt. %, even more preferablyfrom 0.005 wt. %to 8 wt. %, relative to the total weight of the composition.5.Composition according to any claims 1 to 4, wherein the xanthine and / or derivatives thereof is selected from xanthine, caffeine, theobromine, theophylline, paraxanthine, chlorotheophylline, diprophylline, uric acid, dyphylline, cafaminol, aminophylline, IBMX (3-isobutyl-l-methylxanthine) , xanthinol nicotinate, acefylline, diniprophylline, etamiphylline, etophylline, proxyphylline, pentophylline, propentophylline, pyridophylline, bamiphylline and mixtures thereof, and preferably caffeine.6.Composition according to any of claims 1 to 5, wherein the xanthine and / or derivatives thereof is present in an amount ranging from 0.001 wt. %to 15 wt. %, preferably from 0.002 wt. %to 10 wt. %, and more preferably from 0.005 wt. %to 5 wt. %, relative to the total weight of the composition.7.Composition according to any of claims 1 to 6, wherein the weight ratio of the tephrosia purpurea seed extract to the xanthine and / or derivatives thereof is from 4: 1 to 0.001: 1, preferably from 3: 1 to 0.001: 1, more preferably from 2.5: 1 to 0.01: 1.8.Composition according to any of claims 1 to 7, wherein the weight ratio of niacinamide and / or derivatives thereof to the xanthine and / or derivatives thereof is from 0.2: 1 to 20: 1, preferably from 0.5: 1 to 10: 1.9.Composition according to any of claims 1 to 8, further comprising water, preferably in an amount ranging from 50 wt. %to 99.99 wt. %, preferably from 60 wt. %to 99.99 wt. %, relative to the total weight of the composition.10.Composition according to claim 1, comprising, relative to the total weight of the composition:a) from 0.001 wt. %to 1 wt. %of at least one tephrosia purpurea seed extract;b) from 0.005 wt. %to 8 wt. %of niacinamide; andc) from 0.005 wt. %to 5 wt. %of caffeine;wherein the weight ratio of the tephrosia purpurea seed extract to caffeine is from 2.5: 1 to 0.01: 1.11.A process for caring for the hair and / or the scalp comprising applying the composition according to any of claims 1 to 10 onto the hair and / or the scalp.12.Use of a combination of niacinamide and / or derivatives thereof and xanthine and / or derivatives thereof for promoting the ability of a tephrosia purpurea seed extract for inhibiting the cortisol level in a subject, preferably in an animal or human being.13.Use of claim 12, whereinthe niacinamide derivative is selected from 2-chloronicotinamide, 6-methylnicotinamide, 6-aminonicotinamide, N-methylnicotinamide, N, N-dimethylnicotinamide, N- (hydroxymethyl) nicotinamide, quinolinic acid imide, nicotinanilide, N-benzylnicotinamide, N-ethylnicotinamide, nifenazone, nicotinaldehyde, isonicotinic acid, methylisonicotinic acid, thionicotinamide, nialamide, 2-mercaptonicotinic acid, nicomol, niaprazine, methyl nicotinate, sodium nicotinate, and a mixture thereof, and / orthe xanthine and / or derivatives thereof is selected from xanthine, caffeine, theobromine, theophylline, paraxanthine, chlorotheophylline, diprophylline, uric acid, dyphylline, cafaminol, aminophylline, IBMX (3-isobutyl-l-methylxanthine) , xanthinol nicotinate, acefylline, diniprophylline, etamiphylline, etophylline, proxyphylline, pentophylline, propentophylline, pyridophylline, bamiphylline and mixtures thereof, and preferably caffeine.14.Use of claim 12 or 13, wherein the weight ratio of the tephrosia purpurea seed extract to the xanthine and / or derivatives thereof is from 4: 1 to 0.001: 1, preferably from 3: 1 to 0.001: 1, more preferably from 2.5: 1 to 0.01: 1.15.Use of claims 12 to 14, wherein the weight ratio of niacinamide and / or derivatives thereof to the xanthine and / or derivatives thereof is from 0.2:1 to 20:1,preferably from 0.5:1 to 10:1.
Citation Information
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