A composition having nourishing effect on damaged hair and application thereof

Abstract

The present application belongs to the technical field of cosmetic compositions, and particularly relates to a composition with nourishing effect on damaged hair and application thereof. The composition comprises Ulva compressa extract, raspberry ketone glucoside, Sudan cola seed extract and Camellia nitidissima flower extract, wherein the weight ratio of the Ulva compressa extract, the raspberry ketone glucoside, the Sudan cola seed extract and the Camellia nitidissima flower extract is (1-20):(1-10):(1-10):(5-50). The components of the present application produce a synergistic effect, can significantly improve the combing property of damaged hair, improve the gloss of hair, and show excellent effects in moisturizing, smoothing, nourishing and repairing, and the consumer's use feeling is obvious.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic composition technology, specifically relating to a composition that has a nourishing effect on damaged hair and its application. Background Technology

[0002] Hair is mainly composed of two parts: the hair follicle located inside the skin and the exposed hair shaft. The hair follicle is the biological basis for hair growth and renewal, while the hair shaft, as a keratinized fibrous structure, is the focus of daily care. A healthy hair shaft is covered with neatly arranged and tightly packed cuticles, and contains abundant keratin, lipids, and natural moisturizing ingredients, which together maintain the hair's suppleness, shine, and resistance to damage.

[0003] In modern life, hair is often damaged to varying degrees due to frequent chemical treatments (such as dyeing and perming), styling tools, sun exposure, and environmental pollution. These external stimuli can cause the hair cuticle structure to loosen, lift, or even peel off, leaving the hair shaft without an effective protective barrier, leading to problems such as moisture loss, loosening of structure, and decreased elasticity. Damaged hair is usually dry, frizzy, brittle, lacks shine, and is difficult to comb, seriously affecting the appearance and health of the hair.

[0004] To improve damaged hair, current hair care products often employ a variety of nourishing ingredients, such as oils, natural extracts, and protein derivatives, aiming to restore hair's smoothness and strength by replenishing nutrients, filling gaps, or forming a protective film. However, different types of damage have different functional requirements for care ingredients, and single ingredients or conventional ratios often fail to achieve a synergistic effect of repairing the hair shaft surface and nourishing the overall hair.

[0005] Therefore, it is necessary to develop a new type of nourishing composition that, through the rational selection and combination of complementary active ingredients, can effectively enhance the internal nourishment level of hair shaft while maintaining its structural integrity, thereby achieving a comprehensive, gentle and long-lasting care effect for various types of damaged hair. Summary of the Invention

[0006] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments.

[0007] As one aspect of the present invention, the present invention provides a composition having a nourishing effect on damaged hair, wherein the composition comprises Ulva prolifera extract, raspberry ketone glucoside, kola sulphureus seed extract, and camellia chrysantha extract, wherein the weight ratio of Ulva prolifera extract, raspberry ketone glucoside, kola sulphureus seed extract, and camellia chrysantha extract is (1-20):(1-10):(1-10):(5-50).

[0008] As a preferred embodiment of the composition for nourishing damaged hair described in this invention, the mass ratio of Ulva prolifera extract, raspberry ketone glucoside, kola sylvestris seed extract, and camellia chrysantha extract is (2-5):(3-6):(2-8):(8-20).

[0009] As a preferred embodiment of the composition for nourishing damaged hair described in this invention, the mass ratio of *Ulva prostrata* extract, raspberry ketone glucoside, *Kola sulphureus* seed extract, and *Camellia chrysantha* flower extract is 3.5:5:4:10.

[0010] As a preferred embodiment of the composition with nourishing effect on damaged hair according to the present invention, the preparation method of the Camellia chrysantha extract includes crushing Camellia chrysantha flowers, adding an extraction solvent, refluxing at 70-80 °C, filtering and collecting the extract, and concentrating; the solvent includes an ethanol solution with a volume concentration of 60-70%.

[0011] As a preferred embodiment of the composition for nourishing damaged hair according to the present invention, the extraction solvent further includes 5-15% by mass of ethoxydiethylene glycol; the material-to-liquid ratio of the extraction solvent is 1:10-20; and the reflux extraction time is 1-4 h.

[0012] As a preferred embodiment of the composition for nourishing damaged hair according to the present invention, the extraction solvent is a 65% aqueous solution of ethanol containing 10% ethoxydiethylene glycol.

[0013] As a preferred embodiment of the composition for nourishing damaged hair according to the present invention, the composition further includes cosmetic excipients; the cosmetic excipients are selected from one or more of cetearyltrimethylammonium chloride, cetearyl alcohol, citric acid, phenoxyethanol, benzyl alcohol and water.

[0014] As a preferred embodiment of the composition for nourishing damaged hair according to the present invention, the composition further includes Rosa damascena flower oil and / or β-glucan.

[0015] The use of the composition described in this invention, which has a nourishing effect on damaged hair, in the preparation of shampoo, conditioner, or scalp care products for nourishing damaged hair.

[0016] Preferably, the hair care product includes conditioner, hair mask, shampoo, or hair serum.

[0017] The beneficial effects of this invention are as follows: By combining the extracts of Ulva prolifera, raspberry ketone glucoside, kola sylvestris seed extract and camellia laurentii flower extract, the components produce a synergistic effect, which can significantly improve the combability of damaged hair and enhance its shine. At the same time, it shows excellent effects in moisturizing, smoothing frizz, nourishing and repairing, and consumers can clearly feel the effects. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below, wherein: Figure 1 These are comparison images showing the effects of using Example 1 and Comparative Example 3 on hair strands. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to specific examples.

[0020] ENTEROMORPHA COMPRESSA extract: Quzhou Zhanhong Biotechnology Co., Ltd., trade name: YH-53421 ENTEROMORPHA COMPRESSA extract.

[0021] Raspberry ketone glucoside: Guangzhou Nuoyan Biotechnology Co., Ltd., trade name "Raspberry ketone glucoside".

[0022] Sudan Kola Seed Extract: Yunnan Yingge Biotechnology Co., Ltd., trade name "Luoke".

[0023] Rosa damascena flower oil: Guangzhou Hanhui Chemical Technology Co., Ltd.

[0024] β-glucan: Shanghai Zhina Biotechnology Co., Ltd.

[0025] Preparation method of Camellia petelotii (Merr.) Sealy extract in Examples 1-2 and Comparative Examples 1-2: Camellia petelotii flowers were collected, dried, ground, and sieved through a 100-mesh sieve to obtain Camellia petelotii flower powder. A 65% (v / v) ethanol aqueous solution was added to the Camellia petelotii flower powder at a material-to-liquid ratio of 1g:14mL. The mixture was stirred and extracted under reflux at 80°C for 3 hours. After extraction, the mixture was coarsely filtered, then filtered through a 220nm filter membrane, and the filtrate was collected. The filtrate was concentrated at 50°C and spray-dried in a spray drying tower to obtain Camellia petelotii flower extract.

[0026] Example 3: Preparation method of Camellia petelotii (Merr.) Sealy extract: Camellia petelotii flowers were collected, dried, ground, and pulverized, then passed through a 100-mesh sieve to obtain Camellia petelotii flower powder. A solvent was added to the Camellia petelotii flower powder at a material-to-liquid mass ratio of 1g:14mL. The solvent was an aqueous solution containing 10% ethoxydiethylene glycol and 65% ethanol. The mixture was stirred and extracted under reflux at 80°C for 3 hours. After extraction, the mixture was coarsely filtered, then filtered through a 220nm filter membrane, and the filtrate was collected. The filtrate was concentrated at 50°C to remove the ethanol, yielding the Camellia petelotii flower extract.

[0027] flat seaweed ( Enteromorpha compressa Seaweed (Ulva prolifera), commonly known as flat seaweed or sea lettuce, is a large green algae that lives in the intertidal zone. It typically presents as a flat, ribbon-like, or tubular structure. Seaweed is rich in polysaccharides, which can prevent hair from losing moisture by forming a protective film on the hair surface, thus keeping the hair hydrated and smooth.

[0028] Raspberry ketone glucoside is a natural glycoside compound, chemically the glycosyl form of raspberry ketone. It is mainly found in raspberry fruit and the rhizome of the traditional Chinese medicine rhubarb. It has significant antioxidant effects, can eliminate free radicals and inhibit the production of reactive oxygen species, and helps reduce oxidative damage to hair.

[0029] Sudanese kola seeds (Cola acuminata) It is the seed of a very green tree (Sterculiaceae family) in the west, containing active substances such as tannins, flavonoids and unsaturated fatty acids. It can repair and nourish damaged hair by reducing oxidative stress and replenishing intercellular lipids in hair cells.

[0030] Golden camellia is an evergreen shrub or small tree belonging to the genus Camellia in the family Theaceae. It is renowned for its unique golden-yellow petals and is hailed as the "Queen of Camellias." Primarily distributed in Guangxi, China and Vietnam, it is listed as a Class II protected plant in China due to its rare flower color and medicinal value. Its flower extracts mainly contain polysaccharides, polyphenols, flavonoids, and saponins. On one hand, they can scavenge free radicals, reducing the impact of oxidative stress on damaged hair; on the other hand, they can hydrate the hair by interacting with moisture, thereby strengthening the hair's hydrogen bond network and nourishing and repairing damaged hair.

[0031] Hair combability test: Prepare a conditioner base formula without extracts, then add different proportions of extracts (on a dry matter basis) according to Table 1, mix thoroughly, and then conduct a combability test. Conditioner base formula (wt%): 1.5% cetearyltrimethylammonium chloride, 4% cetearyl alcohol, 0.03% citric acid, 0.4% phenoxyethanol, 0.2% benzyl alcohol, and the balance being water.

[0032] Table 1. Percentage of extracts in different samples (wt%)

[0033] Comparative Example 4: Compared with Example 1, a 40% (v / v) aqueous ethanol solution was added to the Camellia chrysantha flower powder, and the rest of the preparation method and formula were the same as in Example 1.

[0034] Comparative Example 5: Compared with Example 1, a 95% ethanol aqueous solution was added to the Camellia chrysantha flower powder, and the rest of the preparation method and formula were the same as in Example 1.

[0035] Damaged hair bundles were collected, washed with a 1% sodium lauryl sulfate aqueous solution, and then air-dried in a constant temperature and humidity environment. The basic combing energy value of each hair bundle before sample collection (denoted as ) was measured using a dynamic combing instrument. M 1) Then, the hair bundles were treated with 0.2g of sample per gram of hair bundle, for a total of 2 treatments. After treatment, the hair bundles were hung to dry in a constant temperature and humidity environment, and the combing power of each hair bundle in the dry state after treatment was measured (referred to as ). M 2). By calculating the rate of change of combing work ΔM Analyze the test data and summarize the rate of change of work. ΔM The calculation formula is as follows: ΔM (%) = ( M 1- M 2) / M 1×100% In the formula, ΔM This indicates the rate of change in hair combing effort before and after sample use. ΔM A higher value indicates a better ability of the sample to improve the combability of the hair strands. The combability test results are shown in Table 2.

[0036] Table 2

[0037] The Bliss independence model was used to analyze synergistic effects. The formula for calculating the Bliss synergy index (CI) is as follows: E Bliss =E A +E B -E A *E B CI =E AB / E Bliss In the formula: E Bliss This refers to the expected additive effect of combining drug A and drug B (Example 1 - Comparative Example 3). E A The effect of drug A when used alone (Comparative Examples 1-3); E B The effect of drug B when used alone (Comparative Examples 2-3); E AB This refers to the actual effect of combining drug A and drug B. If CI > 1, it indicates a synergistic effect; CI = 1, it indicates an additive effect; CI < 1, it indicates an antagonistic effect. The calculated CI = 1.44 > 1, indicating that the combination of the four extracts (Example 1) has a synergistic effect.

[0038] Hair shine test: The hair shine test method is as follows: Select slightly damaged hair bundles, trim them to the same size, wash them with a 1% sodium lauryl sulfate aqueous solution, and then air dry them in a constant temperature and humidity environment. Use a shine meter to measure the shine value of each hair bundle in its dry state before sample collection (recorded as ). F 1) Then, the hair bundles were treated with 0.2g of sample per gram of hair bundle, for a total of 2 treatments. After treatment, the hair bundles were hung to dry in a constant temperature and humidity environment, and the gloss value of each hair bundle in the dry state after treatment was measured (recorded as ). F 2). By calculating the rate of change of gloss K The test data was analyzed, and the calculation formula is as follows: K (%) = ( F 2- F 1) / F 1×100% In the formula, K This indicates the rate of change in the gloss of the hair strands before and after use. K A value > 0 and a statistically significant difference in gloss indicate that the sample significantly enhances hair gloss. The gloss test results are shown in Table 3.

[0039] Table 3 Gloss Test Results

[0040] Consumer use test: A shampoo with the following composition: sodium lauryl ether sulfate 16%, ammonium lauryl sulfate 4%, cocamidopropyl betaine 5%, tetrasodium EDTA 0.05%, stabilizer 0.5%, ethylene glycol distearate 1.5%, guar gum hydroxypropyltrimethylammonium chloride 0.3%, emulsified silicone oil 1.5%, sodium chloride 0.5%, citric acid 0.3%, phenoxyethanol 0.3%, sodium benzoate 0.3%, *Ulva prostrata* extract 0.35%, raspberry ketone glucoside 0.5%, *Kola sulphurea* seed extract 0.4%, *Camellia chrysantha* flower extract 1.0%, *Rosa damascena* flower oil 0.2%, β-glucan 1%, and the balance being water.

[0041] Thirty volunteers aged 18 to 50 who reported having frizzy or damaged hair were recruited. Participants used the sample product instead of their usual shampoo, following the instructions, at least once every three days for four weeks, during which time they discontinued the use of other hair care products. After using the product, participants completed a questionnaire to rate their satisfaction with different evaluation indicators (evaluation options included: very satisfied, fairly satisfied, neutral, somewhat dissatisfied, very dissatisfied). The combined percentage of "very satisfied" and "fairly satisfied" ratings was used as the acceptance level for that indicator. Table 4. Statistical analysis of the proportions of each evaluation indicator

[0042] The test results show that the composition of the present invention has a significant and perceptible nourishing and conditioning effect on hair in practical applications.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A composition having a nourishing effect on damaged hair, characterized in that, The composition includes *Ulva prolifera* extract, raspberry ketone glucoside, *Kola sulphureus* seed extract, and *Camellia chrysantha* flower extract, wherein the weight ratio of *Ulva prolifera* extract, raspberry ketone glucoside, *Kola sulphureus* seed extract, and *Camellia chrysantha* flower extract is (1-20):(1-10):(1-10):(5-50).

2. The composition with nourishing effect on damaged hair according to claim 1, characterized in that, The mass ratio of the extracts of Ulva prolifera, raspberry ketone glucoside, Kola sulphureus seed extract, and Camellia chrysantha flower extract was (2-5):(3-6):(2-8):(8-20).

3. The composition with nourishing effect on damaged hair according to claim 1, characterized in that, The mass ratio of *Ulva prostrata* extract, raspberry ketone glucoside, *Kola sulphureus* seed extract, and *Camellia chrysantha* flower extract was 3.5:5:4:

10.

4. The composition for nourishing damaged hair according to any one of claims 1-3, characterized in that, The preparation method of the Camellia chrysantha extract includes crushing Camellia chrysantha flowers, adding an extraction solvent, refluxing at 70-80 °C, filtering and collecting the extract, and concentrating; the solvent includes a volume solution with a volume concentration of 60-70%.

5. The composition with nourishing effect on damaged hair according to claim 4, characterized in that: The extraction solvent also includes 5-15% ethoxydiethylene glycol by mass; the solid-liquid ratio of the extraction solvent is 1:10-20; and the reflux extraction time is 1-4 h.

6. The composition with nourishing effect on damaged hair according to claim 4, characterized in that: The extraction solvent is a 65% aqueous solution of ethanol containing 10% ethoxydiethylene glycol.

7. The composition having a nourishing effect on damaged hair according to any one of claims 1-3, characterized in that, The composition further includes cosmetic excipients; the cosmetic excipients are selected from one or more of cetearyltrimethylammonium chloride, cetearyl alcohol, citric acid, phenoxyethanol, benzyl alcohol and water.

8. The composition having a nourishing effect on damaged hair according to any one of claims 1-3, characterized in that, The composition also includes Rosa damascena flower oil and / or β-glucan.

9. The use of the composition according to claim 1, which has a nourishing effect on damaged hair, in the preparation of shampoo, conditioner, or scalp care products for nourishing damaged hair.

10. The application according to claim 9, characterized in that, The hair care products include conditioner, hair mask, shampoo, or hair serum.

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