Sulfate type cleaning composition for adjusting skin feeling balance

By adding fumed silica and Celosia seed extract to a sulfate-based cleansing composition, multi-dimensional optimization of skin feel is achieved, addressing issues of imbalanced skin feel in existing technologies and providing a refreshing, smooth, and instantly hydrating effect.

CN120899552APending Publication Date: 2025-11-07OPAL COSMETICS HUIZHOU
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Patent Information

Application Number
CN202511317735.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing sulfate-based cleansing compositions tend to cause a rough and slippery feeling after use, failing to balance the skin's texture and lacking an immediate moisturizing effect after cleansing.

Method used

By adding fumed silica and Celosia seed extract to the composition, the nanoscale particle size and high specific surface area of ​​fumed silica, combined with the polysaccharide and amino acid components of Celosia seed extract, form a transparent and breathable instant moisturizing film, thereby achieving multi-dimensional skin feel optimization of the sulfate system cleansing composition.

Benefits of technology

While retaining its high-efficiency cleansing power, the synergistic effect of fumed silica and celosia seed extract alleviates the astringent and slippery feeling, providing an instantly moisturized and comfortable skin experience, filling a gap in existing technology.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention relates to a sulfate type cleaning composition for adjusting skin feeling balance. The sulfate type cleaning composition comprises fumed silica, a feather cockscomb seed extract, an anionic surfactant, an ampholytic surfactant, a nonionic surfactant, a liquid crystal phase induction structuring agent and pure water. Through reasonable construction of a composition system structure, the fumed silica and the feather cockscomb seed extract are utilized to realize multi-dimensional skin feeling accurate optimization of'astringent feeling-false smooth feeling-instant moisturizing 'of the sulfate system cleaning composition, the effect of'refreshing and smooth feeling + instant moisturizing' is achieved, the technical blank in the field is filled up, and the method is suitable for popularization and application. According to the sulfate type cleaning composition, the sulfate type cleaning composition is matched with other components and reasonable matching of the components, the original efficient cleaning capacity of the sulfate type cleaning composition is reserved, meanwhile, the excellent use experience of comfortable skin feeling and immediate moisturizing after cleaning is achieved, a new theoretical basis and a practical technology are provided for skin feeling optimization and function upgrading of the sulfate type cleaning composition, and the application prospect is wide. And the use experience and the market competitiveness of the product are further improved.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the field of daily chemicals, and particularly relates to a sulfate type cleaning composition for regulating skin balance. BACKGROUND

[0002] Sulfate system shower gel (the main surfactant is sulfate surfactant containing sodium laureth sulfate SLES, ammonium laureth sulfate AESA, etc.), the core reason why such system becomes the mainstream on the market lies in the high matching of its comprehensive performance, cost advantage and market demand. Sulfate belongs to anionic surfactant, contains hydrophilic group and hydrophobic group in its molecular structure, can efficiently destroy the surface tension of oil and dirt, and quickly remove sweat, sebum, dust and other impurities on the skin surface. This strong cleaning power can bring the intuitive feeling of 'clean washing', which meets the core expectation of the public on shower products. This kind of surfactant foams rapidly, the foam is fine and durable, can produce a large amount of dense foam in the rubbing process, and brings pleasant touch and psychological satisfaction. Consumers naturally expect the 'use feeling' of shower gel, and foam is one of the important sensory indicators. Rich foam is often equated with good cleaning effect and high-quality product. The raw material of sulfate surfactant is easy to obtain, and its production process is mature. Its cost is much lower than that of mild surfactants such as amino acid and APG. Cost means that the selling price can be controlled while the profit is guaranteed, and it is more easily accepted by the sinking market and the mass consumer group.

[0003] But the sulfate system bath will exist " rough feeling " and " false slip feeling ", its essence is the interaction of surfactant molecules and the skin surface, the residual state after cleaning, and the difference of sensory experience caused by the change of skin barrier. The reason of " rough feeling " formation: excessive defatting leads to temporary imbalance of skin barrier, because of excessive defatting, the sebum film between keratinocytes is destroyed, the keratinocytes are directly exposed, the water evaporates quickly, the keratinocytes shrink and arrange closely due to lack of water, the friction between cells increases, the skin surface after cleaning is rough, tight, even has the touch of increased friction, the skin surface presents " rough " state, the core is that the rough feeling is caused by excessive defatting; The reason of " false slip feeling " formation: the residual molecules form a film with water, the hydrophilic polyoxyethylene chain and sulfate group are oriented outward, combined with water molecules to form a hydration film, which presents a continuous smooth and slippery feeling on the skin surface after cleaning, as if not clean, the core is that the chemical residue brings the slip feeling. Among them, the patent CN114796068A adjusts the ratio of anion and zwitterion surfactant by dynamic compounding of amino acid surfactant and amphoteric surfactant, forms a neutral lubricating film on the skin surface, reduces the excessive defatting of anionic surfactant and the accumulation of surfactant residue, and achieves the effect of improving the skin feeling, but only depends on the charge effect between surfactant molecules, cannot directly intervene the structure of skin keratin layer, and the improvement of skin roughness caused by excessive defatting is limited; The patent CN1092040C does not specially study and optimize " rough feeling " and " false slip feeling " in improving skin feeling, and the improvement of skin feeling is mainly based on the indirect effect of lipid deposition and product stability improvement. The existing technology still has the problem of " only improving rough feeling or false slip feeling, unable to balance both, and lacking immediate moisturizing effect after cleaning", therefore, it is urgent to develop a sulfate type cleaning composition capable of adjusting balanced skin feeling. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a sulfate type cleaning composition capable of adjusting balanced skin feeling. The present application realizes the multi-dimensional skin feeling precise optimization of " rough feeling-false slip feeling-immediate moisturizing " of sulfate system cleaning composition by reasonable construction of the composition system architecture, using fumed silica and celosia seed extract, fills the technical blank in the field, and realizes the excellent use experience of comfortable skin feeling and immediate moisturizing after cleaning by reasonable collocation of other components and their ratio while retaining the original high cleaning power of sulfate type cleaning composition.

[0005] The technical scheme adopted by the present application to solve the above problems is as follows:

[0006] The present application provides a sulfate type cleaning composition capable of adjusting balanced skin feeling, comprising the following components by weight percentage:

[0007] Fumed silica 0.5-1.5%;

[0008] Celosia argentea seed extract 0.1-0.5%;

[0009] Anionic surfactant 10-18%;

[0010] Amphoteric surfactant 1-5%;

[0011] Nonionic surfactant 1-3%;

[0012] Liquid crystal phase inducing structurant 0.8-1.6%;

[0013] Water q.s. to 100%.

[0014] In the above technical solution, the fumed silica (nanoscale amorphous silica) has extremely fine particle size, which can improve the "dryness" and "false slip" of the sulfate system cleaning composition. The core relies on its nanoscale particle size, high specific surface area, rich surface silicon hydroxyl (-Si-OH), and unique interface adsorption and physical filling effect. For "dryness", the fumed silica reduces the friction resistance of the skin surface through physical micro-filling, hydration film stability and mild protection, and relieves the dryness. The stratum corneum of the skin is stacked by keratinocytes with a diameter of about 30-50 μm, and there are micron-sized gaps between the cells. When the sebum is absent, the gaps are more obvious. The nanoscale particle size of the fumed silica enables it to be adsorbed on the surface of the stratum corneum by Van der Waals force, filling the gaps between the cells, which is equivalent to covering the rough surface with a layer of "nanoscale putty" to reduce the unevenness of the skin surface; its particle surface is smooth, and because of the small particle size, the contact area between adjacent particles is large, forming a continuous "micro-smooth layer", reducing the friction coefficient between the skin and the outside world, and weakening the dryness from the physical level; during the cleaning process, the surface silicon hydroxyl (-Si-OH) of the fumed silica is a strong hydrophilic group, which can combine with water molecules through hydrogen bonds to form a stable "hydration layer" to "bind" part of the skin moisture, reduce the rapid evaporation of the moisture of the stratum corneum after cleaning, and relieve the "tightness-roughness" cycle caused by water deficiency. Although the surface of the fumed silica has a hydrophobic region of micropores formed by the aggregation of nanoscale particles, it is mainly combined with sebum through physical adsorption rather than emulsification, and the adsorption amount is much lower than that of sulfate. This "mild adsorption" can avoid excessive removal of sebum, retain a small amount of sebum film basic structure, and provide basic lubrication for the skin to reduce the generation of dryness. For "false slip", the fumed silica reduces the unnatural chemical residue slip feeling by adsorbing residual molecules, destroying the lubricating film structure, and promoting flushing. The high specific surface area of the fumed silica makes it a "molecular adsorbent". The hydrophobic micro zone on the surface of the fumed silica particles can combine with the hydrophobic alkyl chain of the SLES molecule through Van der Waals force, while the hydrophilic polyoxyethylene chain and sulfate group of the SLES are exposed. This hydrophobic anchor effect can pull the free SLES molecules away from the skin surface and adsorb them onto the silica particles. The SLES-silica complex that is adsorbed is more likely to fall off with the water flow during flushing, reducing the amount of SLES residue on the skin surface, and weakening the false slip caused by the hydration film from the root. The fumed silica realizes "two-way adjustment" by virtue of its nano structure and surface characteristics: for dryness, it fills the rough surface physically, locks moisture to form a hydrated lubricating film, retains a small amount of sebum, and supplements "lubricating medium" to reduce friction; for false slip, it adsorbs residual molecules by high specific surface area, destroys the lubricating film structure, promotes flushing, and removes "excess artificial lubricating medium" to avoid slip residue.

[0015] The Amaranthus tricolor seed extract is a bioactive substance extracted from Amaranthus tricolor seeds, and the core active components thereof are Amaranthus tricolor seed polysaccharides and natural amino acids, in addition to oleanolic acid type triterpene saponins, phenylacetonitrile glycosides, beta-sitosterol and the like. The Amaranthus tricolor seed polysaccharides contain a large amount of hydroxyl groups (-OH) and carboxyl groups (-COOH), and the water solubility is greater than or equal to 95%, and a transparent and breathable “instant moisturizing film” can be quickly formed on the skin surface after cleaning, the skin surface moisture is bound through hydrogen bonds, the immediate evaporation of the moisture after cleaning is prevented, and the traditional long-acting penetration of moisturizers is different, and the instant retention and rapid film formation and water locking are emphasized. The amino acid components in the Amaranthus tricolor seed extract can directly supplement the natural moisturizing factor (NMF) of the stratum corneum.

[0016] In the present application, the fumed silica is compounded with the Amaranthus tricolor seed extract, relying on the core active components (polysaccharides and natural amino acids) of the Amaranthus tricolor seed extract, mainly binding the skin surface moisture through hydrogen bonds, supplementing the natural moisturizing factor of the stratum corneum, and synergistically acting with the silicon hydroxyl groups (-Si-OH) on the surface of the fumed silica, a transparent and breathable instant moisturizing film is quickly formed after cleaning, the rapid evaporation of the moisture in the stratum corneum after cleaning is reduced, and the “tightness-roughness” cycle caused by water deficiency is alleviated. The fumed silica binds the moisture to form a hydration layer through a physical method, and the Amaranthus tricolor seed extract quickly forms a film to lock water through a physical method and supplements NMF through a chemical method, and the two achieve instant hydration after cleaning from the physical water locking + chemical water supplementing dual dimensions, and realize the multi-dimensional skin feel precise optimization of the “astringency-feeling of false slip-instant hydration” of the sulfate system cleaning composition.

[0017] The present application realizes the multi-dimensional skin feel precise optimization of the “astringency-feeling of false slip-instant hydration” of the sulfate system cleaning composition by the synergistic effect of the fumed silica and the Amaranthus tricolor seed extract through the reasonable construction of the composition system architecture, fills the technical blank in the field, and realizes the excellent use experience of comfortable skin feel and instant hydration after cleaning while retaining the original high cleaning efficiency of the sulfate type cleaning composition by the reasonable collocation of other components and their ratios.

[0018] Further, the specific surface area of the fumed silica is 195-245 m 2 / g.

[0019] The present application selects fumed silica with a specific surface area of 195-245 m 2 / g (corresponding to a particle size of 6-10 nm), and the core advantage of this parameter combination is that, from the dimension of adsorption performance, the specific surface area of the fumed silica is 195-245 m 2The specific surface area of 1-10 m<2> / g can provide sufficient and moderate adsorption sites, which can selectively capture excess surfactants to reduce the false slip feeling, and avoid excessive adsorption capacity due to excessive specific surface area, which excessively consumes the moisturizing components in the cleaning composition, affects the instant water moisture, and at the same time, the surface hydroxyl groups can form hydrogen bonds with the skin keratin layer water to assist in maintaining moisture and relieving dryness, achieving the skin balance of "adsorbing redundant components + retaining effective components"; from the dimensions of dispersion and contact efficiency, the nanoscale particle size of 6-10 nm precisely matches the specific surface area mentioned above - the particle size is much smaller than the skin keratin layer gap, which can ensure uniform dispersion in the cleaning composition without a particle feeling, and at the same time, it can maximize the contact area of the particles and the skin surface, further strengthen the targeted adsorption efficiency of the surfactants, reduce the false slip caused by local residues, and avoid the agglomeration problem caused by the excessive surface energy of the super-small particle size due to the high proportion of surface atoms, which directly reduces the adsorption efficiency, or the adsorption failure caused by the reduced contact sites and weakened adhesion capacity of the large particle size.

[0020] Further, the mass fraction of polysaccharides in the Celosia argentea L. seed extract is greater than or equal to 30%.

[0021] The Celosia argentea L. seed extract suitable for the present application has a mass fraction of polysaccharides greater than or equal to 30%. If the polysaccharide content is too low, it is difficult to quickly form a sufficient transient moisturizing film after cleaning, and it is difficult to achieve the goal of "instant water moisture".

[0022] It should be noted that the content of polysaccharides in the Celosia argentea L. seed extract can be detected by high performance liquid chromatography (HPLC) method, or the Celosia argentea L. seed extract with a content detection report (COA) can be purchased from a supplier, but it is not limited thereto. The specific detection process of detecting the content of polysaccharides in the Celosia argentea L. seed extract by HPLC is as follows:

[0023] (1) Treatment: 0.1 g of Celosia argentea L. seed extract was dissolved with ultrapure water, ultrasonic extraction for 30 min, centrifugation at 3000 r / min for 15 min to take the supernatant, the supernatant was diluted to 50 mL, filtered through a 0.22 μm water filter membrane to prepare a sample solution.

[0024] (2) Preparation of control sample: the sample solution was prepared with ultrapure water to prepare a series of concentrations of 5-100 μg / mL of Celosia argentea L. polysaccharide standard solution for drawing a standard curve.

[0025] (3) Detection conditions: C18 chromatographic column, mobile phase: acetonitrile-0.1% phosphoric acid aqueous solution (10:90), flow rate: 1.0 mL / min, detection wavelength: 230 nm, column temperature: 30°C, sample size: 10 μL.

[0026] (4) Quantitative calculation: detect the chromatographic peak area of the control and sample liquid, calculate the polysaccharide concentration of the sample liquid by the standard curve regression equation, and then convert the polysaccharide mass fraction in the Celosia argentea L. seed extract according to the formula, and take the average of three parallel detections (RSD≤2%).

[0027] In the detection method, the control refers to the Celosia argentea L. polysaccharide standard substance with a mass content of polysaccharide ≥98%.

[0028] Further, the anionic surfactant is an ethoxylated alkyl alcohol sulfate salt.

[0029] Specifically, the anionic surfactant is, for example, an alkyl alcohol sulfate salt, an alkyl alcohol polyether sulfate salt, etc., which is well known in the art. Such anionic surfactants have a large critical packing parameter, and the surfactants with a large critical packing parameter help to reduce the overall system irritation. The applicant found through experiments that the anionic surfactant increases the hydrophilic group (ethoxylated), which is more stable and less likely to precipitate in system application. The performance of the ethoxylated surfactant is greatly improved compared to that of a single component surfactant. Further preferably, the anionic surfactant of the present application is an alkyl polyoxyethylene ether sulfate salt, which conforms to the following structure:

[0030] RO(C2H4O)nSO3-M+

[0031] Wherein, R is C8-C18 alkyl, preferably R is C12-C14 alkyl, n is the degree of ethoxylation, preferably n is an integer greater than or equal to 1 and less than or equal to 2, and M is a monovalent cation.

[0032] Further, the amphoteric surfactant is one or more of cocamidopropyl betaine, cocamidopropyl hydroxysultaine, sodium lauroamphoacetate, sodium cocamphoacetate, sodium lauroamphodiacetate, and sodium cocamphodiacetate.

[0033] Preferably, the amphoteric surfactant is cocamidopropyl betaine.

[0034] Further, the non-ionic surfactant is one or more of fatty alcohol polyether-n, alkyl polyglycoside, ethoxylated oil and grease, alkyl alcohol amide, lipid non-ionic surfactant, PEG-n glycerol fatty acid ester, and alkyl amine oxide.

[0035] Preferably, the non-ionic surfactant is alkyl polyglycoside.

[0036] Further, the liquid crystal phase inducing structuring agent is alkyl fatty acid monoethanolamide and trihydroxy hard fat, wherein the alkyl fatty acid monoethanolamide is 0.5-0.8%, and the trihydroxy hard fat is 0.3-0.8%.

[0037] Liquid crystal phase inducing structurants exhibit shear thinning rheology and can suspend non-water soluble or partially water soluble ingredients. Some compounds with long chain alkyl groups can be dissolved in the formulation components at high temperature, but upon cooling to room temperature, crystallize to form a network structure, which has a solid-like rheology at rest, and when the composition is poured, the force generated is higher than the yield stress, and the composition can flow. The liquid crystal phase inducing structurants can be added alone or incorporated into other materials. In comparison with traditional suspending agents, the liquid crystal phase inducing structurants are more stable, and the structured surfactant system is not affected by ions in the formulation. A certain amount of liquid crystal phase inducing structurants is added together with surfactants to promote the formation of the structured surfactant system, and the crystalline network structure can impart a certain suspension effect to the active ingredients in the cleaning composition, and help the fumed silica in the cleaning composition to be uniformly and stably suspended in the product system. The liquid crystal phase inducing structurants used in the present application are alkyl fatty acid monoethanol amides and trihydroxy stearin.

[0038] Further, the sulfate type cleaning composition for regulating skin feel balance of the present application further comprises at least one of the following components in percentage by weight:

[0039] Sunscreen agent 0.01-5%;

[0040] Preservative 0.01-1%;

[0041] pH adjusting agent 0.001-2%;

[0042] Fragrance 0.01-3%;

[0043] Viscosity adjusting agent 0.01-4%.

[0044] Further, the sunscreen agent preferably comprises ethylhexyl palmitate and CI 77891, wherein the mass ratio of ethylhexyl palmitate to CI 77891 is 3:1.

[0045] Further, the preservative is one or more of sodium benzoate and phenoxyethanol; the pH adjusting agent is citric acid; and the viscosity adjusting agent is sodium chloride.

[0046] The above sulfate type cleaning composition for regulating skin feel balance of the present application is prepared by the conventional configuration and mixing technology in the cosmetic field, which is not described in detail herein.

[0047] The present application has the following beneficial effects:

[0048] The sulfate type cleaning composition for regulating skin feel balance of the present application fills the technical gap in the field by reasonably building the composition system architecture, using fumed silica and Celosia argentea L. extract to realize multi-dimensional skin feel precise optimization of the sulfate system cleaning composition "astringent feeling-false slip feeling-immediate water wetting", achieving the effect of "refreshing smoothness + immediate water wetting", reasonably matching other components and their ratios, while retaining the original high efficient cleaning force of the sulfate type cleaning composition, realizing the excellent use experience of comfortable skin feel and immediate water wetting after cleaning, providing new theoretical basis and practical technology for skin feel optimization and function upgrading of the sulfate type cleaning composition, and further improving the use experience and market competitiveness of the product. DETAILED DESCRIPTION

[0049] To make the technical problems, technical solutions and technical advantages of the present application clearer, specific examples will be described in detail below, but the protection scope of the present application is not limited to the following specific examples, and the described examples are only a part of the examples of the present application, rather than all the examples, and are not a limitation on the present application. Based on the examples in the present application, all other examples obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0050] Unless otherwise defined, all the professional terms used below have the same meaning as generally understood by those skilled in the art. The professional terms used in the present application are only for the purpose of describing specific examples, and are not intended to limit the protection scope of the present application.

[0051] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present application can be purchased from the market or can be prepared by existing methods.

[0052] 1. Examples and comparative examples

[0053] Examples 1-7 of the present application respectively provide a sulfate type cleaning composition for regulating skin feel balance, and comparative examples 1-2 respectively provide a sulfate type cleaning composition, and the amount of preparation raw materials is shown in the following Table 1; the unit is weight percentage.

[0054] Table 1 Preparation raw material formula table of examples and comparative examples

[0055]

[0056]

[0057] Among them, the particle size of fumed silica A in Table 1 is about 8 nm, the specific surface area is about 200 m 2 / g; the particle size of fumed silica B is about 10 nm, the specific surface area is about 195 m 2 / g; Aerosil® R 972 gas phase silica C has a particle size of about 6 nm and a specific surface area of about 245 m 2 / g.

[0058] The SET-318 is an opacifier including ethylhexyl palmitate and CI 77891, and the mass ratio of ethylhexyl palmitate to CI 77891 is 3:1, which is purchased from Guangzhou Yitengri Chemical Co., Ltd.

[0059] The sulfate type cleaning compositions of Examples 1-7 and Comparative Examples 1-2 are prepared by the conventional compounding and mixing techniques in the cosmetic field, which are not described in detail herein.

[0060] 2. Performance test

[0061] The sulfate type cleaning compositions of Examples 1-7 and Comparative Examples 1-2 are subjected to rapid stability test, instrument efficacy evaluation and consumer use feeling score.

[0062] 2.1 Rapid stability test

[0063] Test method: The sample is subjected to a stronger gravitational field by using a rapid stability tester, so that the sample produces unstable phenomena under the acceleration of the centrifugal field, and the results obtained are basically consistent with the results of several months under normal gravity. Then the unstable coefficient is determined by using infrared light, which is called clarity index. The higher the clarity index, the more unstable the formula.

[0064] Test purpose: Obtain the stability data of the sample formula in a short time.

[0065] 2.2 Instrument efficacy evaluation

[0066] (1) Subjects: 20 healthy volunteers (10 men and 10 women, 20-40 years old, covering dry / medium / oily skin, excluding sensitive skin) are selected for each sample;

[0067] (2) Test procedure:

[0068] 1) Unified test environment: temperature 25±2℃, humidity 50±5%, the arms of the volunteers are cleaned and dried for 30 min;

[0069] 2) Sample dosage: 3g of sample is applied and rubbed for 30s on the inner side of the left forearm (3cm×5cm area), and then rinsed with pure water at 38±2℃ for 1min. After rinsing, the following instrument test is performed;

[0070] 3) Test items

[0071] a. Surfactant residual amount test

[0072] Test method: The residual amount of skin surfactant was determined by high performance liquid chromatography (HPLC, equipped with a UV detector). A C18 column (4.6 mm × 250 mm, particle size 5 μm) was used. The mobile phase was acetonitrile-phosphate buffer (3:7 v / v, 0.05 mol / L, pH 6.8). The column temperature was controlled at 30℃; the flow rate was set to 1.0 mL / min; the UV detector wavelength was fixed at 210 nm; the injection volume was 10 μL; retention time was used for qualitative analysis; and external standard method was used for quantitative analysis based on peak area.

[0073] Test objective: To reflect the root cause of the false slippery feeling; the lower the residue, the weaker the false slippery feeling.

[0074] b. Skin surface friction coefficient test

[0075] Test method: The frictional resistance between the skin and the standard probe was measured using a skin friction meter (UMT-TriboLab). The probe was made of skin-like silicone (hardness 50 ShoreA) and the sliding speed was 10 mm / s.

[0076] Test objective: A higher coefficient of friction indicates a stronger grip; a low coefficient of friction indicates a strong false slippery feel.

[0077] c. Skin moisture content test

[0078] Test method: The moisture content of the stratum corneum was measured using a skin moisture meter (Corneometer CM825).

[0079] Test objective: To reflect the hydration state; high moisture content indicates a good short-term water-locking effect by forming an "instant moisturizing film".

[0080] 4) Data processing

[0081] a. Average surfactant residue level = (C1 + C2 + ... + C20) / 20, where C1, C2...C20 are the residual SLES levels (μg / cm³) on the skin surface of 1-20 volunteers after sample application. 2 ).

[0082] b. Average skin surface friction coefficient = (μ1 + μ2 + ... + μ20) ​​ / 20, where μ1, μ2, ..., μ20 are the friction coefficients measured by the skin friction coefficient meter on the same test area for 1-20 volunteers after the sample was taken.

[0083] c. Change in skin moisture content ΔWCi=WCi-WC 0i Where i = 1, 2…20, WCi is the skin moisture content of i volunteers after sample application; WC 0iThe average value of the change in skin moisture content was calculated as (ΔWC1+ΔWC2+…+ΔWC20) / 20.

[0084] 2.3 Consumer Sensory Score

[0085] (1) Subjects: 8 healthy volunteers (4 men and 4 women, aged 20-40 years, covering dry / normal / oily skin, excluding sensitive skin) were selected for each sample;

[0086] (2) Test procedure:

[0087] 1) Uniform test environment: temperature 25±2°C, humidity 50±5%, the volunteers' arms were cleaned and dried for 30 min;

[0088] 2) Sample dosage: 3 g of sample was applied to the inner side of the left forearm (3 cm x 5 cm area), rubbed for 30 s, and then rinsed with 38±2°C pure water for 1 min. After rinsing, the questionnaire was filled out according to the actual feeling;

[0089] (3) Questionnaire score setting: immediate water feeling A (0-10 points, 0=no water feeling, 10=obvious water feeling); dryness feeling B (0-10 points, 0=obvious roughness and tightness, 10=no friction resistance); false slip feeling C (0-10 points, 0=obvious smoothness and heaviness, 10=no residual slip); overall skin feeling D (0-10 points, 0=extremely poor skin feeling, 10=best skin feeling).

[0090] (4) Data were averaged, i.e. the average value of immediate water feeling A was (A1+A2+…+A8) / 8; the average value of dryness feeling B was (B1+B2+…+B8) / 8; the average value of false slip feeling C was (C1+C2+…+C8) / 8; and the average value of overall skin feeling D was (D1+D2+…+D8) / 8.

[0091] 2.4 Test results and analysis

[0092] The test results of product rapid stability and instrument efficacy evaluation are shown in Table 2, and the consumer sensory score results are shown in Table 3.

[0093] Table 2 Test results of product rapid stability and instrument efficacy evaluation

[0094]

[0095] Table 3 Consumer sensory score results

[0096]

[0097]

[0098] According to Table 2, from the product quick stability and instrument efficacy evaluation test results, the sulfate type cleaning compositions of embodiments 1-7 of the present application are superior to comparative examples 1-2 in terms of comprehensive performance of clarity index, surfactant residual amount, skin surface friction coefficient, and skin moisture content change amount, indicating that the product of the present application is superior to comparative examples 1-2 in terms of stability, improvement of false slip and astringency, and realization of instant water.

[0099] According to Table 3, from the consumer use feeling score results, the sulfate type cleaning compositions of embodiments 1-7 of the present application are superior to comparative examples 1-2 in terms of overall skin feeling performance.

[0100] Further, in combination with Table 2 and Table 3, comparing embodiments 1-7 and comparative examples 1-2, it can be seen that the core theory of the present application of "fumed silica bidirectional regulation of skin feeling, celosia seed extract promotion of instant water, and synergistic effect of the two" is fully verified.

[0101] From the effect of fumed silica, fumed silica needs to meet the key parameters of "particle size 6-10 nm, specific surface area 195-245 m 2 / g", wherein the fumed silica A with a particle size of 8 nm and a specific surface area of 200 m 2 / g has the best effect at a dosage of 1% — the instrument efficacy evaluation test results show that the skin surfactant residual amount of embodiment 2 is only 0.6 μg / cm 2 , which is much lower than comparative example 1 without fumed silica, and embodiments 6 and 7 with other parameter fumed silica. Correspondingly, the false slip feeling score of embodiment 2 in the consumer use feeling score is 9.53 (comparative example 1 is only 2.32, embodiment 6 is 6.09, and embodiment 7 is 6.29), verifying that the fumed silica under this parameter can precisely adsorb residual SLES molecules through high specific surface area, thereby weakening the false slip feeling from the root; at the same time, the skin surface friction coefficient of embodiment 2 is 0.31, which is significantly lower than comparative example 1 and embodiments 6 and 7, and correspondingly, the astringency score of embodiment 2 in the use feeling score is 9.25 (comparative example 1 is only 1.91, embodiment 6 is 6.29, and embodiment 7 is 6.42), indicating that the fumed silica under this parameter can fill the keratin layer gap through nanoparticles to form a smooth micro layer, effectively reducing the skin friction resistance to relieve astringency, and fully matching the bidirectional skin feeling regulation theory of "physical filling + targeted adsorption".

[0102] As for the Amaranthus tricolor seed extract, its instant moisturizing technical effect of "polysaccharide forming a transient moisturizing film and amino acid supplementing NMF" can also be achieved. When the Amaranthus tricolor seed extract is used in an amount of 0.3-0.5% (polysaccharide content ≥ 30%), the skin moisture content of Example 2 is 45% and that of Example 5 is 44%, which are much higher than those of Comparative Example 2 without Amaranthus tricolor seed extract and Example 4 with a low amount of Amaranthus tricolor seed extract. Correspondingly, in the consumer test, the instant moisturizing score of Example 2 is 9.32 and that of Example 5 is 9.22, which are also much higher than those of Comparative Example 2 and Example 4, proving that the Amaranthus tricolor seed extract can quickly form a water-locking film and supplement the moisturizing factor of the stratum corneum to achieve the best instant moisturizing effect at this amount, and an insufficient amount of Amaranthus tricolor seed extract cannot achieve the instant moisturizing effect due to insufficient active ingredients.

[0103] From the aspects of synergy and stability of fumed silica and Amaranthus tricolor seed extract, fumed silica A is combined with Amaranthus tricolor seed extract (0.3%) and a liquid crystal phase-induced structuring agent (cocamide MEA + trihydroxy stearyl alcohol) to achieve the triple balance of "skin feel-water moisturizing-stability". Example 2 has the highest scores in instant moisturizing (9.32), dryness (9.25) and false slip (9.53), and the overall skin feel score is 9.41, which is much higher than 2.83 of Comparative Example 1 and 5.84 of Comparative Example 2, and the clarity index is only 0.02, indicating that Example 2 has the best stability and avoids the effect failure of fumed silica due to agglomeration (for example, the clarity index of Example 3 increases to 0.18 due to the increase of the amount of fumed silica, and the residual and friction coefficient also increase).

[0104] In summary, the experimental data fully verify the theoretical technical effect of the present application: fumed silica with specific parameters can precisely adjust the skin feel, Amaranthus tricolor seed extract with a specific amount can efficiently achieve instant moisturizing, and the combination of the two with a liquid crystal phase-induced structuring agent can ensure the stability of the sulfate cleaning composition system while retaining the high cleaning power of the sulfate cleaning composition system, filling the gap in the prior art of "only adjusting the skin feel without instant moisturizing", achieving the multi-dimensional skin feel precise optimization of "dryness-false slip-instant moisturizing" for the sulfate cleaning composition, and achieving the effect of "refreshing and smooth + instant moisturizing", which verifies the theoretical scientificity and technical practicability.

[0105] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, which all belong to the protection scope of the present application.

[0106] It should be further noted that any technically feasible combination of the various technical features described in the above embodiments is possible, provided that the combination does not contradict itself. In order to avoid unnecessary repetition, the present application does not describe each and every possible combination of the various technical features.

[0107] Furthermore, any combination of the various embodiments of the present application is possible, provided that the combination does not contradict itself, and should be considered as being disclosed by the present application.

Claims

1. A sulfate salt type cleansing composition for regulating skin feel balance, characterized by, The following components by weight percentage: Gas phase silica 0.5-1.5%; Celosia argentea seed extract 0.1-0.5%; Anionic surfactant 10-18%; Amphoteric surfactant 1-5%; Nonionic surfactant 1-3%; Liquid crystal phase inducing structuring agent 0.8-1.6%; Pure water is supplemented to 100%.

2. The sulfate salt type cleaning composition according to claim 1, characterized by, The specific surface area of the fumed silica is 195-245 m 2 / g.

3. The sulfate salt type cleaning composition according to claim 1, characterized by, The mass fraction of polysaccharide in the celosia argentea seed extract is greater than or equal to 30%.

4. The sulfate salt type cleaning composition according to claim 1, characterized by, The anionic surfactant is an ethoxylated alkyl alcohol sulfate salt.

5. The sulfate salt type cleaning composition according to claim 1, characterized by, The amphoteric surfactant is one or more of cocamidopropyl betaine, cocamidopropyl hydroxyl sultaine, sodium lauroamphoacetate, sodium cocamphoacetate, sodium lauroamphodiacetate, and sodium cocamphodiacetate.

6. The sulfate salt type cleaning composition according to claim 1, characterized by, The nonionic surfactant is one or more of fatty alcohol polyether-n, alkyl polyglycoside, ethoxylated oil and grease, alkyl alcohol amide, lipid nonionic surfactant, PEG-n glycerol fatty acid ester, and alkyl amine oxide.

7. The sulfate salt type cleaning composition according to claim 1, characterized by, The liquid crystal phase inducing structuring agent is alkyl fatty acid monoethanolamide and trihydroxy stearin, wherein the weight percentage of alkyl fatty acid monoethanolamide is 0.5-0.8%, and the weight percentage of trihydroxy stearin is 0.3-0.8%.

8. The sulfate salt type cleaning composition according to claim 1, characterized by, Further comprising at least one of the following components by weight percentage: Sunscreen 0.01-5%; Preservative 0.01-1%; pH adjuster 0.001-2%; Fragrance 0.01-3%; Viscosity regulator 0.01-4%.

9. The sulfate salt type cleaning composition according to claim 8, characterized by, The sunscreen includes ethylhexyl palmitate and CI 77891, and the mass ratio of ethylhexyl palmitate to CI 77891 is 3:

1.

10. The sulfate salt type cleaning composition according to claim 8, characterized by, The preservative is one or more of sodium benzoate and phenoxyethanol; the pH adjuster is citric acid; and the viscosity regulator is sodium chloride.

Citation Information

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