Composition for solving skin problems of teenagers and application thereof

Abstract

The invention provides a composition for solving skin problems of teenagers and application of the composition. The composition for solving the skin problems of the teenagers comprises the following components in parts by weight: 30-75 parts of a bacteriostatic agent, 1-15 parts of an oil control agent, 1-15 parts of a humectant and 0.1-1 part of an antioxidant, the bacteriostatic agent is a combination of a melaleuca alternifolia leaf extract and a chamomilla recutita flower extract. The composition provided by the invention has the effects of repairing a skin barrier, protecting a sebum film and reducing water loss from the perspective of regulating the micro-ecology of the skin through the matching of the components. In addition, according to the skin characteristics of teenagers, grease secretion can be controlled, microbial growth can be inhibited, inflammatory mediator generation can be inhibited, acne can be improved, and different requirements of teenager groups can be met through multiple effects.

Description

Technical Field

[0001] The present invention belongs to the technical field of daily cosmetics, and in particular relates to a composition for solving skin problems of teenagers and its application. Background Art

[0002] During puberty, adolescents experience significant endocrine changes, which in turn alter their skin structure and function. Furthermore, their skin barrier function is not fully developed, making them susceptible to both endogenous and exogenous factors, leading to various skin problems. Adolescents have a thinner stratum corneum and a weaker skin barrier, making them susceptible to environmental irritants, leading to skin sensitivity, redness, and irritation. High levels of androgen in adolescents stimulate sebum production, resulting in high oil content and oily skin and enlarged pores. Despite their high sebum secretion, adolescents have low levels of natural moisturizing factors, making them prone to dry skin. Due to factors such as high endocrine metabolism and high academic pressure, adolescents are more susceptible to the growth of Propionibacterium acnes and chronic inflammation, leading to conditions such as acne. Adolescents also metabolize melanin more rapidly, and inflammation stimulates melanin production, leading to pigmentation following acne.

[0003] There are currently many cosmetics targeting teenagers on the market, including oil-control cleansers, acne-fighting skincare products, sunscreens, and moisturizing serums. Oil-control cleansers utilize surfactants like soap and sulfates to enhance cleansing and oil removal. Acne-fighting products utilize colloidal sulfur and salicylic acid. Sunscreens typically combine physical and chemical sunscreens. Moisturizing serums typically utilize a combination of polyol humectants and oils to create a nourishing and hydrating serum system.

[0004] However, many of the above-mentioned products on the market contain high concentrations of alcohol, soap bases, or less safe ingredients that may damage the skin barrier. In particular, some youth cosmetics add high levels of highly effective acne-fighting ingredients, such as "acid peeling" products. Although these ingredients can treat acne, high concentrations or blind use may cause skin sensitivity or even skin irritation. Moreover, most products only use adult formulas, adding a large amount of highly occlusive and heavy oils to the formula. However, in fact, adolescent skin is already oily, and use of these products will make the skin even more oily and more prone to acne, which puts a greater burden on the skin. These formula systems lack scientificity and rationality, and are not designed based on the skin characteristics and skin microecological structure of adolescents. They only focus on oil control and acne removal, ignoring the anti-inflammatory and anti-allergic needs of adolescent skin. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a composition and its application for solving the skin problems of adolescents. The composition provided by the present invention has the effects of moisturizing, controlling oil, removing acne, soothing and repairing through scientific combination, and can solve the skin problems of adolescents in multiple dimensions.

[0006] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a composition for solving skin problems of adolescents, wherein the composition for solving skin problems of adolescents comprises, by weight, 30-75 parts of an antibacterial agent, 1-15 parts of an oil control agent, 1-15 parts of a moisturizer, and 0.1-1 parts of an antioxidant;

[0008] The antibacterial agent is a combination of Melaleuca alternifolia leaf extract and Chamomile flower extract.

[0009] The composition provided by the present invention, through the combination of the above-mentioned components, can regulate the skin microbiome, repairing the skin barrier, protecting the sebum membrane, and reducing water loss. Furthermore, based on the characteristics of adolescent skin, it can control oil secretion, inhibit microbial growth, suppress the production of inflammatory mediators, and improve acne. Through these multiple benefits, it can meet the diverse needs of adolescents.

[0010] The chamomile extract contains cyclic ethers, flavonoids, and total volatile oils, which have strong broad-spectrum antiviral and antibacterial properties. It can eliminate fungi on the skin, such as Trichophyton rubrum, Candida albicans, and Candida albicans, effectively improving acne. Chamomile extract can also inhibit the production of NF-α-mediated cytokines and the release of prostaglandin E in macrophages, reducing inflammation and allergies, resulting in healthier skin. Chamomile extract can also improve dry, cracked, and dehydrated skin, demonstrating excellent moisturizing properties.

[0011] The Melaleuca alternifolia leaf extract has antibacterial, antiviral, antifungal, and anti-inflammatory properties, effectively treating acne and other inflammatory skin diseases, and also effectively improving dry skin. The Melaleuca alternifolia leaf extract eliminates microorganisms by destroying their cell walls and membranes, causing cell lysis. It also inhibits the production of inflammatory mediators.

[0012] The antibacterial agent of the present invention can better improve the soothing and repairing effect of the composition by using the above components in combination, and can also enable the composition to fight inflammation while removing acne, thereby further reducing the occurrence of acne.

[0013] The amount of the antibacterial agent added to the composition for solving skin problems of adolescents of the present invention can be 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, 65 parts or 70 parts, etc.

[0014] The amount of the oil control agent added can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts or 14 parts, etc.

[0015] The amount of the moisturizer added can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts or 14 parts, etc.

[0016] The added amount of the antioxidant can be 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts or 0.9 parts, etc.

[0017] Preferably, the mass ratio of the Melaleuca alternifolia leaf extract to the Matricaria chamomilla extract is 1:(1-15), for example, it can be 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:12, 1:13 or 1:14, etc.

[0018] Preferably, the oil-control agent comprises any one of dipeptide-15, 10-hydroxydecanoic acid, capryloylglycine, sarcosine or a medicinal pore fungus extract, or a combination of at least two thereof.

[0019] Preferably, the oil-control agent is dipeptide-15.

[0020] The oil-control agent of the present invention is dipeptide-15, which can activate glycine receptors to maintain intracellular particle balance, thereby shrinking pores, regulating sebaceous gland cell differentiation, reducing sebum secretion, and increasing the water content of skin keratin, thereby improving the problem of excessive oil secretion in adolescents, improving enlarged pores, and further improving the oil-control effect of the composition.

[0021] Preferably, the moisturizing agent includes any one or a combination of at least two of Tremella fuciformis extract, glycerin, butylene glycol, 1,3-propylene glycol, isopentyl glycol, ethylhexylglycerin, 1,2-pentanediol, caprylyl glycol or 1,2-hexanediol.

[0022] Preferably, the antioxidant comprises any one of p-hydroxyacetophenone, raspberry ketone or octanoylhydroxamic acid, or a combination of at least two thereof.

[0023] Preferably, the composition for solving adolescent skin problems further comprises 5-35 parts of repair ingredients by weight, for example, 6 parts, 8 parts, 10 parts, 12 parts, 14 parts, 16 parts, 18 parts, 20 parts, 22 parts, 24 parts, 26 parts, 28 parts, 30 parts, 32 parts or 34 parts, etc.

[0024] Preferably, the repairing ingredient includes any one of ectoine, Centella asiatica extract, Gentiana root extract, Panax ginseng root extract, hydrolyzed ginsenosides, Calendula officinalis flower extract or Leontopodium alpinum extract, or a combination of at least two thereof.

[0025] Preferably, the repairing ingredients are ectoine, Centella asiatica extract and Gentiana root extract.

[0026] Preferably, the mass ratio of the ectoine, the Centella asiatica extract and the Gentiana root extract is (0.1-2): (1-3): (1-2).

[0027] Wherein “0.1-2” can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.;

[0028] "1-3" can be 1.1, 1.3, 1.5, 1.7, 1.9, 2, 2.1, 2.3, 2.5, 2.7 or 2.9, etc.;

[0029] “1-2” can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.

[0030] As a preferred technical solution of the present invention, the Centella asiatica extract can effectively inhibit the increase of inflammatory cells caused by Propionibacterium acnes, and reduce the production of inflammatory mediator NF-κb, anti-inflammatory acne, and repair acne. It can increase the thickness and density of the dermis, effectively repair the dermis, significantly promote the synthesis of type III collagen, promote skin healing, and effectively improve acne scars. The gentian root extract effectively inhibits the release of histamine and TRPV1-related expression, and by reducing the production of inflammatory mediator NF-κb, inhibits the expression of related inflammatory factors, effectively resists irritation, and has soothing and repairing effects. The tetrahydropyrimidine carboxylic acid can effectively regulate the skin microecological system, fight acne, balance the skin flora, increase the number of beneficial bacteria, reduce the number of harmful bacteria, significantly enhance the skin barrier function of adolescents, relieve skin discomfort, and protect sensitive skin. The three are used in combination to have a synergistic effect, which can further improve the repair, soothing and anti-inflammatory effects of the composition.

[0031] Preferably, the chamomile flower extract, Melaleuca alternifolia leaf extract, Centella asiatica extract or Gentiana scabra root extract used in the present invention can be extracted using conventional water extraction or alcohol extraction methods.

[0032] Exemplary methods for extracting chamomile flower extract include:

[0033] After the chamomile flowers are dried and crushed, they are heated and boiled with an ethanol aqueous solution with a volume fraction of 60-70%, refluxed and extracted to obtain an extract, which is concentrated and dried to obtain the product.

[0034] The extraction method of the Melaleuca alternifolia leaf extract, Centella asiatica extract or Gentiana scabra root extract can be carried out by referring to the above method.

[0035] Any specific point value within the above numerical range can be selected and will not be described in detail here.

[0036] In a second aspect, the present invention provides a method for preparing the composition for solving skin problems of adolescents as described in the first aspect, the preparation method comprising:

[0037] The chamomile flower extract, moisturizer and antioxidant are heated and then mixed, and then the oil control agent and Melaleuca alternifolia leaf extract are added after cooling, and the mixture is mixed to obtain the composition for solving the skin problems of teenagers.

[0038] Preferably, the temperature is raised to 80-100°C, for example, 81°C, 83°C, 85°C, 88°C, 90°C, 93°C, 95°C, 97°C or 99°C.

[0039] Preferably, the temperature is lowered to 40-50°C, for example, 41°C, 43°C, 45°C, 47°C or 49°C.

[0040] Preferably, the step of adding a repairing ingredient is further included after cooling.

[0041] Any specific point value within the above numerical range can be selected and will not be described in detail here.

[0042] In a third aspect, the present invention provides a use of the composition for solving skin problems of teenagers according to the first aspect in the preparation of cosmetics for teenagers.

[0043] The cosmetics include any one of essence, gel, jellies, creams or lotions.

[0044] Preferably, the mass percentage of the composition for solving adolescent skin problems in the cosmetic is 1-10%, for example, it can be 2%, 3%, 4%, 5%, 6%, 7%, 8% or 9%.

[0045] Any specific point value within the above numerical range can be selected and will not be described in detail here.

[0046] In a fourth aspect, the present invention provides a multifunctional essence for teenagers, wherein the components of the essence include, by weight, 1-10 parts of the composition for solving the skin problems of teenagers as described in the first aspect, 1-15 parts of polyol, 0.1-1 part of thickener, 0.1-2 parts of antioxidant and 75-99 parts of deionized water.

[0047] The amount of the composition for solving adolescent skin problems in the essence of the present invention can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0048] The amount of the polyol added can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts or 14 parts, etc.;

[0049] The amount of the thickener added can be 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts or 0.9 parts, etc.;

[0050] The amount of the antioxidant added can be 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1 parts, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts or 1.9 parts, etc.;

[0051] The added amount of the deionized water can be 76 parts, 78 parts, 80 parts, 82 parts, 85 parts, 88 parts, 90 parts, 92 parts, 95 parts or 98 parts, etc.

[0052] Preferably, the polyols are glycerol, 1,2-hexanediol and butanediol.

[0053] Preferably, the thickener includes any one of xanthan gum, polyacrylamide, polyacrylate crosspolymer-6, hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, acrylic acid (esters) / C10-30 alkyl acrylate crosspolymer, ammonium acryloyldimethyl taurate / VP copolymer, sodium polyacryloyldimethyl taurate, hydroxyethyl cellulose or carbomer, or a combination of at least two thereof.

[0054] Preferably, the antioxidant is hydroxyacetophenone.

[0055] Preferably, the essence further comprises any one or a combination of at least two of a preservative, a pH adjuster or a fragrance.

[0056] Any specific point value within the above numerical range can be selected and will not be described in detail here.

[0057] In a fourth aspect, the present invention provides a method for preparing the multifunctional serum for teenagers according to the third aspect, the method comprising:

[0058] The water is heated, and then a polyol, a thickener, and an antioxidant are added and mixed homogeneously. After cooling, the composition for solving skin problems of teenagers is added and mixed homogeneously to obtain the multifunctional essence for teenagers;

[0059] The temperature is raised to 80-90°C, for example, 81°C, 83°C, 85°C, 87°C or 89°C.

[0060] The temperature is lowered to 30-40°C, for example, 31°C, 33°C, 35°C, 37°C or 39°C.

[0061] After cooling, the method further comprises adding any one of a preservative, a pH regulator or a fragrance or a combination of at least two of them.

[0062] Any specific point value within the above numerical range can be selected and will not be described in detail here.

[0063] Compared with the prior art, the present invention has the following beneficial effects:

[0064] (1) The composition provided by the present invention, through the combination of the above components, can regulate the skin microecology, repair the skin barrier, protect the sebum membrane, and reduce water loss. In addition, based on the characteristics of adolescent skin, it can control oil secretion, inhibit microbial growth, inhibit the production of inflammatory mediators, and improve acne. Through multiple functions, it can meet the different needs of adolescent groups.

[0065] (2) The multifunctional essence for teenagers of the present invention adopts a light formula system, has a refreshing texture and is easily absorbed by the skin. The polyols used in the formula can assist in moisturizing the skin, and the thickener can make the skin feel refreshing and non-greasy. It can be suitable for teenagers with various skin types, especially acne-prone and sensitive skin. DETAILED DESCRIPTION

[0066] The technical solution of the present invention is further described below by way of specific embodiments. It should be understood by those skilled in the art that the embodiments are merely to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0067] The sources of some raw materials in the examples or comparative examples of the present invention are shown in Table 1 below:

[0068] Table 1

[0069]

[0070] The rest of the raw materials can be used as long as they are purchased from regular dealers.

[0071] Example 1

[0072] This embodiment provides a composition for solving skin problems of adolescents, wherein the composition comprises, by weight, 51 parts of chamomile flower extract, 10 parts of melaleuca alternifolia leaf extract, 10 parts of centella asiatica extract, 8 parts of gentiana root extract, 10 parts of dipeptide-15, 5 parts of tetrahydromethylpyrimidine carboxylic acid, 1-10 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, and 0.5 parts of p-hydroxyacetophenone;

[0073] The preparation method of the composition is:

[0074] Add chamomile flower extract, butylene glycol, 1,2-hexanediol, and p-hydroxyacetophenone into a reaction kettle, heat to 90° C., disperse, cool to 45° C., add dipeptide-15 and tetrahydromethylpyrimidine carboxylic acid, homogenize and disperse, then add Melaleuca alternifolia leaf extract, Centella asiatica extract, and Gentiana dahurica root extract, homogenize and disperse to obtain the composition.

[0075] Example 2

[0076] This embodiment provides a composition for solving skin problems of adolescents, wherein the composition comprises, by weight, 59 parts of chamomile flower extract, 5 parts of melaleuca alternifolia leaf extract, 6 parts of Centella asiatica extract, 10 parts of gentiana root extract, 5 parts of dipeptide-15, 8 parts of tetrahydromethylpyrimidine carboxylic acid, 8 parts of butylene glycol, 0.8 parts of 1,2-hexanediol, and 0.2 parts of p-hydroxyacetophenone;

[0077] The preparation method of the composition is:

[0078] Add chamomile flower extract, butylene glycol, 1,2-hexanediol, and p-hydroxyacetophenone into a reaction kettle, heat to 80° C., disperse, cool to 50° C., add dipeptide-15 and tetrahydromethylpyrimidine carboxylic acid, homogenize and disperse, then add Melaleuca alternifolia leaf extract, Centella asiatica extract, and Gentiana dahurica root extract, homogenize and disperse to obtain the composition.

[0079] Example 3

[0080] This embodiment provides a composition for solving skin problems of adolescents, wherein the composition comprises, by weight, 29 parts of chamomile flower extract, 15 parts of melaleuca alternifolia leaf extract, 15 parts of centella asiatica extract, 5 parts of gentiana root extract, 15 parts of dipeptide-15, 10 parts of tetrahydromethylpyrimidine carboxylic acid, 10 parts of butylene glycol, 0.4 parts of 1,2-hexanediol, and 0.6 parts of p-hydroxyacetophenone;

[0081] The preparation method of the composition is:

[0082] Add chamomile flower extract, butylene glycol, 1,2-hexanediol, and p-hydroxyacetophenone into a reaction kettle, heat to 100° C., disperse, cool to 40° C., add dipeptide-15 and tetrahydromethylpyrimidine carboxylic acid, homogenize and disperse, then add Melaleuca alternifolia leaf extract, Centella asiatica extract, and Gentiana dahurica root extract, and homogenize and disperse to obtain the composition.

[0083] Example 4

[0084] This embodiment provides a composition for solving skin problems of adolescents. The only difference between the composition and Example 1 is that the composition does not contain Centella asiatica extract, Gentiana root extract, and ectoine. The remaining components and proportions are consistent with those in Example 1. The preparation method refers to Example 1.

[0085] Example 5

[0086] This embodiment provides a composition for solving skin problems in adolescents. The only difference between the composition and Example 1 is that the Centella asiatica extract is absent from the composition, and the reduced amount thereof is distributed among the gentian root extract and the tetrahydropyrimidine carboxylic acid in proportion to the number of parts. The remaining components and proportions are consistent with those in Example 1, and the preparation method is similar to that in Example 1.

[0087] Example 6

[0088] This embodiment provides a composition for solving skin problems in adolescents. The only difference between the composition and Example 1 is that the gentian root extract is absent from the composition, and the reduced amount thereof is distributed among the Centella asiatica extract and the tetrahydropyrimidine carboxylic acid in proportion to the number of parts. The remaining components and proportions are consistent with those in Example 1, and the preparation method is similar to that in Example 1.

[0089] Example 7

[0090] This embodiment provides a composition for solving skin problems in adolescents. The only difference between the composition and Example 1 is that the composition does not contain ectoine, and the reduced amount of ectoine is distributed to the Centella asiatica extract and the gentian root extract in proportion. The remaining components and proportions are consistent with those in Example 1. The preparation method refers to Example 1.

[0091] Example 8

[0092] This embodiment provides a composition for solving skin problems of adolescents. The difference between the composition and Example 1 is that 10-hydroxydecanoic acid is used in equal amounts to replace dipeptide-15. The remaining components and proportions are consistent with those in Example 1. The preparation method refers to Example 1.

[0093] Comparative Example 1

[0094] This comparative example provides a composition for solving skin problems of teenagers. The only difference between the composition and Example 1 is that there is no chamomile extract in the components, and the reduced amount is supplemented by Melaleuca alternifolia leaf extract. The remaining components and proportions are consistent with those in Example 1, and the preparation method refers to Example 1.

[0095] Comparative Example 2

[0096] This comparative example provides a composition for solving skin problems of teenagers. The only difference between the composition and Example 1 is that the composition does not contain Melaleuca alternifolia leaf extract, and the reduced amount is supplemented by Chamomile flower extract. The remaining components and proportions are consistent with those in Example 1, and the preparation method refers to Example 1.

[0097] Comparative Example 3

[0098] This comparative example provides a composition for solving skin problems of teenagers. The difference between the composition and Example 1 is that there is no dipeptide-15 in the composition. The remaining components and proportions are consistent with Example 1. The preparation method refers to Example 1.

[0099] Application Examples 1-3

[0100] Application Examples 1-3 provide three multifunctional essences for teenagers. The components of the essences are shown in Table 2 below. The dosage of each component in the table is in parts:

[0101] Table 2

[0102]

[0103] The preparation method of the multifunctional essence for teenagers is as follows:

[0104] (1) Add deionized water to the emulsifier and heat it to 85°C. Then add polyol, thickener and antioxidant and mix well.

[0105] (2) Cooling the mixture to 35° C., adding the composition for solving skin problems of teenagers, and stirring evenly to obtain the multifunctional essence for teenagers.

[0106] Application Examples 4-8

[0107] Application Examples 4-8 respectively provide five multifunctional essences for teenagers. The only difference between them and Application Example 1 is that the composition for solving teenagers' skin problems in Example 1 is replaced with the composition for solving teenagers' skin problems in Examples 4-8 in equal amounts. The remaining components and addition amounts are the same as those in Application Example 1, and the preparation method refers to Application Example 1.

[0108] Application Example 9

[0109] This application example provides a multifunctional essence for teenagers, which differs from Application Example 1 only in that the polyol does not include glycerol, and its reduced amount is supplemented by butylene glycol. The remaining components and addition amounts are consistent with Application Example 1, and the preparation method refers to Application Example 1.

[0110] Application Example 10

[0111] This application example provides a multifunctional essence for teenagers, which differs from Application Example 1 only in that the polyol does not include butanediol, and its reduced amount is supplemented by glycerol. The remaining components and addition amounts are consistent with Application Example 1, and the preparation method refers to Application Example 1.

[0112] Comparative Application Examples 1-3

[0113] Comparative Application Examples 1-3 respectively provide three multifunctional essences for teenagers. The only difference between them and Application Example 1 is that the composition for solving the skin problems of teenagers provided in Example 1 is replaced by the composition for solving the skin problems of teenagers provided in Comparative Examples 1-3 in equal amounts. The remaining components and addition amounts are the same as those in Application Example 1, and the preparation method refers to Application Example 1.

[0114] Comparative Application Example 4

[0115] This comparative application example provides a multifunctional essence for teenagers, which differs from Application Example 1 only in that the components of the essence do not include a composition for solving teenagers' skin problems, and the reduced amount is supplemented by deionized water. The remaining components and added amounts are consistent with Application Example 1, and the preparation method refers to Application Example 1.

[0116] Test Example 1: Evaluation of Essence Efficacy

[0117] (1) Test substance: the essence of Application Examples 1-10 and Comparative Application Examples 1-4;

[0118] (2) Subjects: 98 volunteers aged 18 to 25 were randomly divided into 14 groups, with 7 people in each group. Each group used the above-mentioned essence. The requirements for the volunteers were: a certain amount of acne on the face; strong oil secretion, dryness, and sensitive skin on the face;

[0119] (3) Usage: Apply an appropriate amount of the test substance to the face and massage thoroughly. Use twice a day, morning and evening. Continue for 7 days.

[0120] (4) Test procedure: Clean the face and dry it, then equilibrate it in a constant temperature and humidity room for 30 minutes.

[0121] Use VISIA skin image analyzer to capture and analyze the facial red area ratio before and after use.

[0122] Use the TM300 probe to measure TEWL before and after use to analyze skin water loss.

[0123] The skin oil content was measured using a Sebumeter® SM 815.

[0124] The moisture content of the stratum corneum was measured using a Corneometer® CM 825 skin moisture tester.

[0125] Collect statistics, analyze results, and record ISGA scores before and after use.

[0126] (5) Test results

[0127] (5.1) TEWL-Transcutaneous Water Loss

[0128] The data analysis of the TEWL value change rate after 7 days of use compared with before use is shown in Table 3 below.

[0129] Table 3

[0130]

[0131] Compared with comparative application example 4, after using the samples of application examples 1-3 for 7 consecutive days, the TEWL values decreased significantly, indicating that adding the composition for solving adolescent skin problems can effectively prevent skin moisture loss and has a repairing effect.

[0132] It can be seen from Application Examples 4-7 that the addition of repairing ingredients and the selection of repairing ingredients in the composition of the present invention will affect the repairing effect of the essence.

[0133] It can be seen from Application Example 8 and Comparative Application Example 3 that when the oil-control agent is not a specific choice of the present invention or no oil-control agent is added, the repair effect of the essence will also decrease.

[0134] From comparative application examples 1-2, it can be seen that the Melaleuca alternifolia leaf extract and the Matricaria recutita flower extract in the antibacterial agent synergize with each other, and the absence of any one component will affect the repair effect.

[0135] 5.2 Test results of moisture content of skin stratum corneum:

[0136] The data analysis of the change rate of moisture content in the stratum corneum of the skin after using the sample for 7 days compared with before use is shown in Table 4 below.

[0137] Table 4

[0138]

[0139] Compared to Comparative Application Example 4, after seven days of continuous use, the moisture content of the skin's stratum corneum increased in the samples of Application Examples 1-3, demonstrating that the addition of the composition for addressing adolescent skin problems can replenish skin moisture and provide a moisturizing effect. Application Examples 9-10 demonstrate that butylene glycol and glycerin contribute to increased skin moisture.

[0140] 5.3 Test results of facial red area ratio:

[0141] The data analysis of the change rate of facial red area percentage after using the sample for 7 days compared with before use is shown in Table 5 below.

[0142] Table 5

[0143]

[0144] Compared with comparative application example 4, after using the samples of application examples 1-3 for 7 consecutive days, the area ratio of facial red areas decreased to varying degrees, indicating that after adding the composition for solving the skin problems of teenagers, the facial redness-removing effect is good, skin health is promoted, the skin barrier is strengthened, and it has a soothing effect, and the absence of any component in the composition will affect the redness-removing effect.

[0145] 5.4. Facial skin oil content test results:

[0146] Compared with before use, the change rate of skin oil content of the subjects after using the samples for 7 days is shown in Table 6 below.

[0147] Table 6

[0148]

[0149] Compared with comparative application example 4, after using the samples of application examples 1-3 for 7 consecutive days, the skin oil content decreased to varying degrees, indicating that the addition of the composition for solving adolescent skin problems can effectively reduce the skin oil content, control oil secretion, and have an oil control effect, among which dipeptide-15 has the greatest impact on the oil control effect.

[0150] 5.5. Facial acne treatment test results

[0151] Compared with before use, the change rate of the proportion of the acne red area of the subjects after using the sample for 7 days is shown in Table 7 below.

[0152] Table 7

[0153]

[0154] Compared with before use, the change rate of facial acne count of the subjects after using the samples for 7 days is shown in Table 8 below.

[0155] Table 8

[0156]

[0157] The change rate of facial ISGA score after using the sample for 7 days compared with before use is shown in Table 9 below.

[0158] Table 9

[0159]

[0160] Compared with comparative application example 4, after using the samples of application examples 1-3 for 7 consecutive days, the number of acne on the subjects' skin decreased and the redness of acne decreased, and the acne improved, indicating that the composition for solving the skin problems of adolescents has acne-removing effect, and the components in the composition have a synergistic effect. The absence of any component will affect the acne-removing effect. Among them, the extract of matricaria recutita and the extract of Melaleuca alternifolia leaves have the greatest effect on the acne-removing effect.

[0161] In summary, the essence added with the composition for solving the skin problems of teenagers has the effects of moisturizing, oil control, acne treatment, soothing and repairing.

[0162] Test Example 2: Safety Evaluation Experiment

[0163] The specific method is as follows: 40 women aged 18-25 years with no history of allergies were selected. Each subject was treated with samples prepared in Application Examples 1-10. After cleaning the subject's back, a patch tester containing the sample was applied to the selected area on the back using non-irritating tape. After application, lightly press the patch with your fingers to evenly adhere to the skin. This was continued for 48 hours. The subject was instructed to keep the patch area dry for 48 hours and avoid strenuous exercise, scratching the patch area, and prolonged sunlight exposure. After 48 hours, the patch was removed and marked. After 30 minutes, once the indentation disappeared, the test was performed under adequate lighting.

[0164] The grading standards for adverse skin reactions are shown in Table 10:

[0165] Table 10

[0166]

[0167] The results are shown in Table 11:

[0168] Table 11

[0169]

[0170] The data in Table 11 show that after removing the spot tester, no adverse reactions were observed on the skin of the volunteers. This indicates that the raw materials used in the essence of the present invention are safe and non-irritating, have no adverse reactions to the human body, and are highly safe.

[0171] The applicant states that the present invention uses the above-mentioned embodiments to illustrate a composition for treating adolescent skin problems and its application. However, the present invention is not limited to the above-mentioned embodiments, and it does not mean that the present invention must rely on the above-mentioned embodiments in order to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent substitutions for various raw materials in the present invention, addition of auxiliary ingredients, and selection of specific methods, etc., are all within the scope of protection and disclosure of the present invention.

[0172] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0173] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A composition for solving skin problems of teenagers, characterized in that: The composition for solving skin problems of teenagers comprises, by weight, 30-75 parts of an antibacterial agent, 1-15 parts of an oil control agent, 1-15 parts of a moisturizing agent, and 0.1-1 parts of an antioxidant; The antibacterial agent is a combination of Melaleuca alternifolia leaf extract and Chamomile flower extract.

2. The composition for solving skin problems of teenagers according to claim 1, characterized in that: The oil-control agent comprises any one of dipeptide-15, 10-hydroxydecanoic acid, capryloylglycine, sarcosine or a medicinal phytomycete extract, or a combination of at least two of them.

3. The composition for solving skin problems of teenagers according to claim 1, characterized in that: The moisturizing agent includes any one of Tremella fuciformis extract, glycerin, butylene glycol, 1,3-propylene glycol, isopentyl glycol, ethylhexylglycerin, 1,2-pentanediol, caprylyl glycol or 1,2-hexanediol, or a combination of at least two thereof.

4. The composition for solving skin problems of teenagers according to claim 1, characterized in that: The antioxidant includes any one of p-hydroxyacetophenone, raspberry ketone or octanoylhydroxamic acid, or a combination of at least two thereof.

5. The composition for solving skin problems of teenagers according to claim 1, characterized in that: The composition for solving the skin problems of teenagers further comprises 5-35 parts by weight of a repairing ingredient; The repairing ingredients are tetrahydropyrimidine carboxylic acid, Centella asiatica extract and Gentiana root extract.

6. Use of the composition for solving skin problems of teenagers according to any one of claims 1 to 5 in the preparation of cosmetics for teenagers; The cosmetics include any one of essence, gel, jellies, creams or lotions.

7. A multifunctional serum for teenagers, characterized in that: The components of the essence include, by weight, 1-10 parts of the composition for solving adolescent skin problems according to any one of claims 1 to 5, 1-15 parts of polyol, 0.1-1 part of thickener, 0.1-2 parts of antioxidant and 75-99 parts of deionized water.

8. The multifunctional serum for teenagers according to claim 7, characterized in that: The polyols are glycerol, 1,2-hexanediol and butanediol; The thickener includes any one or a combination of at least two of xanthan gum, polyacrylamide, polyacrylate crosspolymer-6, hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, acrylic acid (esters) / C10-30 alkyl acrylate crosspolymer, ammonium acryloyldimethyl taurate / VP copolymer, sodium polyacryloyldimethyl taurate, hydroxyethyl cellulose or carbomer; The antioxidant is hydroxyacetophenone.

9. The multifunctional serum for teenagers according to claim 7, characterized in that: The essence also includes any one or a combination of at least two of a preservative, a pH regulator or a fragrance.

10. A method for preparing the multifunctional essence for teenagers according to any one of claims 7 to 9, characterized in that: The preparation method comprises: The deionized water is heated, and then a polyol, a thickener, and an antioxidant are added and mixed homogeneously. After cooling, the composition for solving skin problems of teenagers is added and mixed homogeneously to obtain the multifunctional essence for teenagers; Heating to 80-90°C; The temperature is lowered to 30-40°C; After cooling, the method further comprises adding any one of a preservative, a pH regulator or a fragrance or a combination of at least two of them.

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