A ceramide composition for dry and oily skin, skin care product and preparation method thereof

Through the dry skin oil-skin ceramide composition, the combination of ceramide and hyaluronic acid or red pine leaf extract is used to repair the dry and oil-sensitizing muscles, solving the problem of poor repair of sensitive skin in the prior art, and achieving effective barrier repair and oil control.

CN119732874APending Publication Date: 2025-04-01GUANGZHOU XIAOTAN TECH CO LTD

Patent Information

Application Number
CN202411968526.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

The prior art is difficult to effectively repair oil-sensitive skin, and care products for sensitive skin may have too many ingredients that cause skin irritation.

Method used

A dry skin oily skin ceramide composition is developed, including a combination of ceramide with hyaluronic acid or red pine leaf extract, to repair the dry and oily skin through different proportions.

Benefits of technology

The composition significantly improves the barrier function of sensitive skin, has excellent protective barrier effect, and has the effect of keratin renewal and controlling oil secretion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a ceramide composition for dry skin and oily skin, wherein the ceramide composition for dry skin and oily skin comprises a combination of ceramide and hyaluronic acid or a combination of ceramide and red pine leaf extract, wherein the weight ratio of the ceramide and hyaluronic acid is (0.01-0.05): 0.1; and the weight ratio of the ceramide and red pine leaf extract is (0.01-0.05): 1. The combination of ceramide and hyaluronic acid of the invention is used for dry and sensitive skin, and the combination of ceramide and red pine leaf extract is used for oily and sensitive skin, thereby improving the repair effect of sensitive skin, having an excellent barrier repairing effect, and having the effects of both keratin renewal and oil secretion control.
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Description

Technical Field

[0001] The invention relates to the field of makeup preparations, and in particular to a ceramide composition for dry and oily skin, a skin care product and a preparation method thereof. Background Art

[0002] With the increase of external environmental irritation conditions and the abuse of cosmetics by consumers, people's skin sensitivity has increased, and consumers' demand for sensitive skin care has increased. For users with sensitive skin, repairing the skin's barrier defense is an important means to improve sensitive skin. Sensitive skin includes dry sensitive skin and oily sensitive skin. The problem of dry sensitive skin is dryness, tightness, roughness and peeling, while the problem of oily sensitive skin is oiliness, large pores and excessive oil secretion. They are two completely opposite skin types, so the improvement methods are also different. Especially for sensitive skin, it is more sensitive to the effects of functional ingredients. Therefore, it is very important to develop a repair composition for dry sensitive skin and oily sensitive skin respectively.

[0003] Chinese invention patent CN107854367B discloses an essence for repairing sensitive skin. By combining a specific combination of natural plant extracts with ceramide, sodium hyaluronate, polyglutamic acid, allantoin, etc., an essence is prepared that can relieve erythema, itching and other reactions in the skin allergy state, and repair the damaged skin barrier of sensitive skin, but the repair effect on oily sensitive skin is not good. Chinese invention patent CN117959235A discloses a composition for regulating the balance of skin microecology and its application. It creatively combines five components of lactobacillus / soy milk fermentation product filtrate, inulin, α-glucan oligosaccharide, red pine leaf extract and lactobacillus fermentation product. While improving the diversity of skin microecology, it strengthens the skin barrier and achieves the effects of oil control, soothing and repairing. However, too many synergistic regulatory ingredients may have a greater irritating effect on the skin, especially sensitive skin. Summary of the invention

[0004] In order to develop a repair composition for dry and sensitive skin and oily and sensitive skin respectively, the first aspect of the present invention provides a ceramide composition for dry skin and oily skin, wherein the ceramide composition for dry skin and oily skin comprises a combination of ceramide and hyaluronic acid or a combination of ceramide and red pine leaf extract, the weight ratio of the ceramide and hyaluronic acid is (0.01-0.05): 0.1; the weight ratio of the ceramide and red pine leaf extract is (0.01-0.05): 1.

[0005] During the experiment, the inventor found that the combination of ceramide and hyaluronic acid has excellent effects on dry and sensitive skin. The possible reason is that ceramide is one of the main lipid components of the cell membrane and can play a stabilizing and balancing role in the human body. By combining ceramide and hyaluronic acid and applying them to dry skin, the skin can be replenished with good moisture and the oiliness and wateriness of the skin can be balanced, thereby reducing the dryness, tightness, roughness and peeling problems of dry and sensitive skin. The inventor used a combination of ceramide and red pine leaf extract for oily and sensitive skin. The possible reason is that the red pine leaf extract has a good moisturizing effect on skin cells. The combination of ceramide and red pine leaf extract can inhibit the secretion of skin oil, thereby maintaining the water-oil balance of the skin and repairing the skin's barrier defense.

[0006] As a preferred embodiment, the weight ratio of the ceramide to hyaluronic acid is (0.01-0.03):0.1; the weight ratio of the ceramide to the red pine leaf extract is (0.01-0.03):1.

[0007] As a preferred embodiment, the weight ratio of the ceramide to hyaluronic acid is 0.0225:0.1; the weight ratio of the ceramide to the red pine leaf extract is 0.0225:1.

[0008] The inventors found in the experiment that the combination of ceramide and hyaluronic acid in a weight ratio of 0.0225:0.1 for dry and sensitive skin, and ceramide and red pine leaf extract in a weight ratio of 0.0225:1 for oily and sensitive skin, has a good effect on improving the skin barrier of sensitive skin. The possible reason is that at the preferred weight ratio, the water-oil balance of dry and sensitive skin and oily and sensitive skin is better, and the molecular chain length of ceramide is longer. If it exceeds the preferred weight ratio, it is easy to clog pores, destroy the balance of oily skin barrier, and cause inflammation. For dry skin, if the weight ratio exceeds the preferred ratio, it will aggravate the loss of water in the skin, leading to sagging and wrinkles, destroying the skin barrier, making the skin more sensitive and more susceptible to external stimuli.

[0009] The second aspect of the present invention provides a skin care product, which includes the above-mentioned dry skin and oily skin ceramide composition, and the skin care product is selected from at least one of lotion, cream, essence and ointment.

[0010] As a preferred embodiment, the raw materials for preparing the skin care product include, by weight percentage: 10-20% oil phase, 1-3% stabilizing phase, 1-2% pH adjusting phase, 1-3% functional phase, and the water phase is supplemented to 100%.

[0011] As a preferred embodiment, the raw materials for preparing the skin care product include, by weight percentage: 11.2% oil phase, 2% stabilizing phase, 1.2% pH adjustment phase, 2.0225% efficacy phase, and the water phase is supplemented to 100%.

[0012] As a preferred embodiment, the raw materials for preparing the skin care product include, by weight percentage: 11.2% oil phase, 2% stabilizing phase, 1.2% pH adjustment phase, 1.1225% efficacy phase, and the water phase is supplemented to 100%.

[0013] As a preferred embodiment, based on the weight percentage of the skin care product, the water phase includes 1-5% glycerin, 0.1-1% xanthan gum, 0.1-1% acrylate cross-linked polymer, and water is supplemented to 100%.

[0014] As a preferred embodiment, based on the weight percentage of the skin care product, the water phase includes 4% glycerin, 0.2% xanthan gum, 0.2% acrylate cross-linked polymer, and water is supplemented to 100%.

[0015] As a preferred embodiment, the acrylate cross-linked polymer is acrylic acid (ester) / C 10-30 Alkyl Acrylate Crosspolymer.

[0016] As a preferred embodiment, the oil phase includes, by weight percentage of the skin care product, 1-6% of butylene glycol cocoate mixture, 1-5% of octyldodecanol myristate, 1-3% of caprylic / capric triglyceride, 1-3% of coconut oil caprylate / caprate, and 0.1-0.5% of tocopherol acetate.

[0017] As a preferred embodiment, based on the weight percentage of the skin care product, the oil phase includes 4% butylene glycol cocoate mixture, 3% octyldodecanol myristate, 2% caprylic / capric triglyceride, 2% coconut oil caprylate / caprate, and 0.2% tocopherol acetate.

[0018] The inventors found in experiments that the absorption effect of the ceramide composition when directly applied to the skin is not good. The ceramide composition is combined with the oil phase components octyldodecanol myristate, caprylic / capric triglyceride, and coconut oil alcohol-caprylate / caprate to improve the skin's absorption of ceramide. The fatty acid chain of ceramide combined with octyldodecanol myristate, caprylic / capric triglyceride, and coconut oil alcohol-caprylate / caprate can promote ceramide to enter the epidermis, form a network structure in the stratum corneum, and associate water molecules, thereby achieving the effect of repairing the barrier.

[0019] As a preferred embodiment, the butylene glycol cocoate mixture at least includes isostearyl alcohol, butylene glycol cocoate, and ethyl cellulose.

[0020] As a preferred embodiment, based on the weight percentage of the skin care product, the stable phase includes 1-2% butylene glycol, 0.1-1% p-hydroxyacetophenone, and 0.1-1% 1,2-hexanediol.

[0021] As a preferred embodiment, based on the weight percentage of the skin care product, the stable phase includes 1% butylene glycol, 0.5% p-hydroxyacetophenone, and 0.5% 1,2-hexanediol.

[0022] As a preferred embodiment, the pH adjusting phase includes arginine and water, and the weight ratio of arginine to water is (0.1-0.3): 1, based on the weight percentage of the skin care product. Preferably, the weight ratio of arginine to water is 0.2:1.

[0023] As a preferred embodiment, based on the weight percentage of the skin care product, the functional phase includes water, ceramide and hyaluronic acid in a weight ratio of 1: (0.01-0.03): 0.1. More preferably, the weight ratio of water, ceramide and hyaluronic acid is 1: 0.0225: 0.1.

[0024] As a preferred embodiment, based on the weight percentage of the skin care product, the functional phase includes water, ceramide and red pine leaf extract in a weight ratio of 1: (0.01-0.03): 1. More preferably, the water, ceramide and red pine leaf extract in a weight ratio of 1: 0.0225: 1.

[0025] The third aspect of the present invention provides a method for preparing a skin care product, comprising the following steps:

[0026] S1 accurately weighs the oil phase and stirs until it is completely uniform;

[0027] S2 accurately weighs the water phase and stirs to homogenize and dissolve evenly;

[0028] S3: Slowly add the uniform oil phase into the uniform water phase and quickly homogenize until emulsification is complete;

[0029] After S4 is emulsified, cool to 60-70°C, add the stabilizing phase and stir evenly;

[0030] S5 then adds a pH adjustment phase to adjust the pH to 5.5-6.5;

[0031] S6 Finally, cool down to below 40°C, add the functional phase, stir evenly, and the mixture is ready.

[0032] As a preferred embodiment, the preparation method of the skin care product comprises the following steps:

[0033] S1 accurately weighs the oil phase and stirs until it is completely uniform;

[0034] S2 accurately weighs the water phase and stirs to homogenize and dissolve evenly;

[0035] S3: Slowly add the uniform oil phase into the uniform water phase and quickly homogenize until emulsification is complete;

[0036] After S4 is emulsified, cool to 65°C, add the stabilizing phase and stir evenly;

[0037] S5 then adds a pH adjustment phase to adjust the pH to 6;

[0038] S6 Finally, cool down to below 40°C, add the functional phase, stir evenly, and the mixture is ready.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] (1) The ceramide composition for dry skin and oily skin of the present invention, the combination of ceramide and hyaluronic acid is used for dry sensitive skin, and the combination of ceramide and red pine leaf extract is used for oily sensitive skin, which improves the repair effect of sensitive skin, has an excellent effect of repairing the barrier, and has the effects of both keratin renewal and controlling oil secretion.

[0041] (2) The dry skin and oily skin ceramide composition of the present invention comprises a combination of dry and sensitive skin ceramide and hyaluronic acid in a weight ratio of 0.0225:0.1, and an oily and sensitive skin ceramide and red pine leaf extract in a weight ratio of 0.0225:1, which improves the barrier function of the surface skin, especially for sensitive skin.

[0042] (3) The ceramide composition for dry and oily skin of the present invention comprises octyldodecanol myristate, caprylic / capric triglyceride, and coconut oil caprylate / caprate as the oil phase components, which improves the absorption effect of ceramide and enables it to be developed and utilized to the maximum extent at a smaller usage amount.

[0043] (4) The dry skin and oily skin ceramide composition of the present invention, ceramide and hyaluronic acid are used in skin care products, which have a good repairing effect on dry and sensitive skin, and promote the renewal of the stratum corneum, promote skin metabolism, increase the thickness of the epidermal stratum corneum, and improve the skin's water retention capacity.

[0044] (5) The dry skin and oily skin ceramide composition of the present invention, ceramide and red pine leaf extract are used in skin care products, which have a good repairing effect on oily sensitive skin and have the effect of controlling oil secretion of the skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1This is a picture of the tissue morphology test of the 3D skin model using the people in Example 2. From left to right are parallel experiments, and from top to bottom are blank, negative control, positive control, and Example 2.

[0046] Figure 2 This is a picture of the tissue morphology test of the 3D skin model using the people in Example 8. From left to right are parallel experiments, and from top to bottom are blank, negative control, positive control, and Example 8.

[0047] Figure 3 These are fluorescent images of the tight junction protein 1 test performed on the population in Example 2. From left to right are parallel experiments, and from top to bottom are blank, negative control, positive control, and Example 2.

[0048] Figure 4 These are fluorescent images of the tight junction protein 1 test performed on the population of Example 8. From left to right are parallel experiments, and from top to bottom are blank, negative control, positive control, and Example 8.

[0049] Figure 5 These are fluorescent images of the peroxisome proliferator-activated receptor α (PPARα) test performed on the population in Example 2. From left to right are parallel experiments, and from top to bottom are blank, negative control, positive control, and Example 2.

[0050] Figure 6 These are fluorescent images of the peroxisome proliferator-activated receptor α (PPARα) test performed on the population in Example 2. From left to right are parallel experiments, and from top to bottom are blank, negative control, positive control, and Example 8.

[0051] Figure 7 This is a test picture of the oil control efficacy of the group of people using Example 8. From left to right are parallel experiments, and from top to bottom are blank, negative control, positive control, and Example 8. DETAILED DESCRIPTION

[0052] Example 1

[0053] A ceramide composition for dry skin and oily skin comprises ceramide and glycerin in a weight ratio of 0.0225:1.

[0054] A skin care product comprises, by weight percentage, 11.2% of an oil phase, 2% of a stabilizing phase, 1.2% of a pH regulating phase, 2.0225% of an efficacy phase, and a water phase supplemented to 100%.

[0055] Calculated by weight percentage of the skin care product, the water phase includes 4% glycerin, 0.2% xanthan gum, 0.2% acrylate cross-linked polymer, and water is supplemented to 100%.

[0056] The acrylic acid ester cross-linked polymer is acrylic acid (ester) / C 10-30 Alkyl acrylate crosspolymer, available from Lubrizol, brand: Carbopol Ultrez 20.

[0057] The xanthan gum was purchased from CP Kelco, brand: KELTROL CG-F.

[0058] In terms of weight percentage of the skin care product, the oil phase includes 4% butylene glycol cocoate mixture, 3% octyldodecyl myristate, 2% caprylic / capric triglyceride, 2% coconut oil alcohol-caprylate / caprate, and 0.2% tocopherol acetate.

[0059] The butylene glycol cocoate mixture at least comprises isostearyl alcohol, butylene glycol cocoate and ethyl cellulose. The butylene glycol cocoate mixture is purchased from Gattefosse (France), brand:

[0060] Calculated by weight percentage of the skin care product, the stable phase includes 1% butylene glycol, 0.5% p-hydroxyacetophenone, and 0.5% 1,2-hexanediol.

[0061] The pH adjustment phase includes arginine and water in a weight ratio of 0.2:1.

[0062] The efficacy phase includes water, ceramide and glycerin in a weight ratio of 1:0.0225:1.

[0063] A method for preparing a skin care product comprises the following steps:

[0064] S1 accurately weighs the oil phase and stirs until it is completely uniform;

[0065] S2 accurately weighs the water phase and stirs to homogenize and dissolve evenly;

[0066] S3: Slowly add the uniform oil phase into the uniform water phase and quickly homogenize until emulsification is complete;

[0067] After S4 is emulsified, cool to 65°C, add the stabilizing phase and stir evenly;

[0068] S5 then adds a pH adjustment phase to adjust the pH to 6;

[0069] S6 Finally, cool down to below 40°C, add the functional phase, stir evenly, and the mixture is ready.

[0070] Example 2

[0071] A ceramide composition for dry skin and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry skin and oily skin comprises ceramide and hyaluronic acid in a weight ratio of 0.0225:0.1.

[0072] Example 3

[0073] A ceramide composition for dry and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry and oily skin comprises ceramide and ophiopogon root extract in a weight ratio of 0.0225:1.

[0074] The Ophiopogon japonicus root extract was purchased from silab, COHESIUM.

[0075] Example 4

[0076] A ceramide composition for dry and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry and oily skin comprises ceramide and papain in a weight ratio of 0.0225:1.

[0077] The papain was purchased from Basf, X-pressinTM C.

[0078] Example 5

[0079] A ceramide composition for dry and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry and oily skin comprises ceramide and cucumber fruit extract in a weight ratio of 0.0225:1.

[0080] The cucumber fruit extract was purchased from Symrise, Hydroviton Insta.

[0081] Example 6

[0082] A ceramide composition for dry and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry and oily skin comprises ceramide and angustifolia / leaf / stem extract in a weight ratio of 0.0225:0.2.

[0083] The epilobium / leaf / stem extract was purchased from basf, EPISPOT.

[0084] Example 7

[0085] A ceramide composition for dry and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry and oily skin comprises ceramide and Rosa canina fruit extract in a weight ratio of 0.0225:2.

[0086] The Rosa canina fruit extract was purchased from Sliab, SEBOCYTINE.

[0087] Example 8

[0088] A ceramide composition for dry and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry and oily skin comprises ceramide and red pine leaf extract in a weight ratio of 0.0225:1.

[0089] The red pine leaf extract was purchased from Clariant, Gesolza.

[0090] Example 9

[0091] A ceramide composition for dry and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry and oily skin comprises ceramide and Eugenia caryophyllus extract in a weight ratio of 0.0225:0.5.

[0092] The Eugenia caryophylli extract was purchased from SEBULESS.

[0093] Example 10

[0094] A ceramide composition for dry and oily skin, the specific implementation manner is the same as that of Example 1, except that the ceramide composition for dry and oily skin comprises ceramide and hydrolyzed prickly pear cactus flower extract in a weight ratio of 0.0225:2.

[0095] The hydrolyzed opuntia cactus flower extract was purchased from silab, EXFOLACTIVE.

[0096] Performance Testing

[0097] 1. Consumer rating test: Five groups of people were selected, each with 35 people. The consumers had dry and sensitive skin with damaged barrier and dry and peeling skin. They applied the skin care products of Examples 1-5 after cleansing their faces every morning and evening. Feedback was given after three days of use. The rating criteria are shown in Table 1 below. Another five groups of people were selected, each with 35 people. The consumers had oily and sensitive skin with damaged barrier and oily skin, large pores, and excessive oil secretion. They applied the skin care products of Examples 6-10 after cleansing their faces every morning and evening. Feedback was given after three days of use. The rating criteria are shown in Table 2 below. The test results are shown in Table 3.

[0098] Table 1

[0099]

[0100] Table 2

[0101]

[0102] Table 3

[0103] score score Example 1 379 Example 6 317 Example 2 411 Example 7 326 Example 3 322 Example 8 419 Example 4 326 Example 9 287 Example 5 373 Example 10 399

[0104] 2. According to the 3D epidermal skin model The tests were carried out according to the tissue morphology and tight junction protein 1 (Claudin-1) and peroxisome proliferator-activated receptor α (PPARα) content detection method and the oil content detection method based on sebaceous gland cells.

[0105] 3D skin model tissue morphology test: The group of people using Example 2 took photos of the tissue morphology of the 3D skin model, and the test picture is shown in Figure 1 ; The tissue morphology of the 3D skin model was photographed using the people in Example 8, and the test diagram is shown in Figure 2 .

[0106] Experimental conclusion: Compared with the blank group, the stratum corneum of the negative control group was loose, the living cell layer was damaged, and vacuoles appeared, indicating that the stimulation conditions of this test were effective. Compared with the blank group, the living cell layer vacuoles of the positive control group were reduced, and the loose stratum corneum and damaged living cell layer were significantly improved, indicating that the positive control of this test was effective. The tissue morphology of the ceramide composition of dry and sensitive skin and oily sensitive skin was significantly improved in terms of damaged living cell layer.

[0107] 3. Claudin-1 test results: The population of Example 2 was tested for Claudin-1. The results of Claudin-1 immunofluorescence analysis are shown in Table 4 and the test pictures are shown in Figure 3 The population of Example 8 was tested for tight junction protein 1. The results of Claudin-1 immunofluorescence analysis are shown in Table 4 and the test pictures are shown in Figure 4 Improvement rate (%) = (sample group - negative control group) / negative control group × 100%.

[0108] 4. Peroxisome proliferator-activated receptor α (PPARα) test results: The population of Example 2 was tested for peroxisome proliferator-activated receptor α (PPARα). The results are shown in Table 5 and the test pictures are shown in Figure 5 The peroxisome proliferator-activated receptor α (PPARα) test was performed on the population using Example 8. The results are shown in Table 5 and the test pictures are shown in Figure 6 Improvement rate (%) = (sample group - negative control group) / negative control group × 100%.

[0109] 5. Cuticle renewal test: The cuticle renewal test was performed on the group of people using Example 2, and the results are shown in Table 6. Up-regulation rate (%) = (sample group - blank control group) / blank control group × 100%.

[0110] 6. Oil control efficacy test: The oil control efficacy test was conducted on the group using Example 8 (the mass proportion of ceramide and red pine leaf extract in the skin care product was 0.07%, and the weight ratio of ceramide and red pine leaf extract was 0.0225:1). The test results are shown in Figure 7, Table 7. The oil content of the oil-sensitive skin ceramide composition at a concentration of 0.07% was significantly reduced, and the inhibition rate was 14.54%. It was proved that it has excellent efficacy in controlling oil secretion. Inhibition rate (%) = (negative control group - sample group) / negative control group × 100%.

[0111] Table 4

[0112] Relative IOD value SD Increase rate (compared to negative control) / % blank 1 0.13 / Negative control 0.25 0.05 / Positive Control 0.67 0.09 168 Example 2 0.53 0.07 112 Example 8 0.43 0.06 72

[0113] Experimental conclusion: The Claudin-1 content of the ceramide composition for dry sensitive skin increased significantly, with an increase rate of 112.00%; the Claudin-1 content of the ceramide composition for oily sensitive skin increased significantly, with an increase rate of 72.00%, proving that it has excellent repairing effects.

[0114] Table 5

[0115] Relative IOD value SD Increase rate (compared to negative control) / % blank 1 0.08 / Negative control 0.32 0.05 / Positive Control 1.03 0.11 221.88 Example 2 0.67 0.04 109.38 Example 8 0.5 0.04 56.25

[0116] Conclusion: The PPARα content of the ceramide composition for dry sensitive skin increased significantly, with an increase rate of 109.38%, and the PPARα content of the ceramide composition for oily sensitive skin increased significantly, with an increase rate of 56.25%, proving that it has excellent repairing effects.

[0117] Table 6

[0118] KLK5 gene expression detection SD Upregulation rate (compared to negative control) / % blank 1 0.05 / Example 2 1.17 0.05 17

[0119] Conclusion: The ceramide composition of dry and sensitive skin significantly up-regulated the expression of KLK5 gene, with an up-regulation rate of 17.00%, proving that it has excellent efficacy in promoting keratin renewal.

[0120] Table 7

[0121] Relative IOD value SD Inhibition rate (compared to negative control) / % blank 1 0.55 / Negative control 9.08 0.56 / Positive Control 6.68 0.40 26.43 Example 8 7.76 0.42 14.54

Claims

1. A ceramide composition for dry and oily skin, characterized in that: The dry skin and oily skin ceramide composition comprises a combination of ceramide and hyaluronic acid or a combination of ceramide and red pine leaf extract, wherein the weight ratio of the ceramide to the hyaluronic acid is (0.01-0.05):0.1; the weight ratio of the ceramide to the red pine leaf extract is (0.01-0.05):

1.

2. The ceramide composition for dry and oily skin according to claim 1, characterized in that: The weight ratio of the ceramide to hyaluronic acid (0.01-0.03): 0.1; the weight ratio of the ceramide to the red pine leaf extract (0.01-0.03):

1.

3. The ceramide composition for dry and oily skin according to claim 1, characterized in that: The weight ratio of the ceramide to hyaluronic acid is 0.0225:0.1; the weight ratio of the ceramide to the red pine leaf extract is 0.0225:

1.

4. A skin care product, characterized in that: The skin care product comprises the dry skin and oily skin ceramide composition according to any one of claims 1 to 3, and the skin care product is selected from at least one of lotion, cream, essence and ointment.

5. The skin care product according to claim 4, characterized in that: The raw materials for preparing the skin care product include, by weight percentage, 10-20% of an oil phase, 1-3% of a stabilizing phase, 1-2% of a pH regulating phase, 1-3% of an efficacy phase, and a water phase supplemented to 100%.

6. The skin care product according to claim 5, characterized in that: Calculated by weight percentage of the skin care product, the water phase includes 1-5% glycerin, 0.1-1% xanthan gum, 0.1-1% acrylate cross-linked polymer, and water is supplemented to 100%.

7. The skin care product according to claim 5, characterized in that: In terms of weight percentage of the skin care product, the oil phase comprises 1-6% butylene glycol cocoate mixture, 1-5% octyldodecyl myristate, 1-3% caprylic / capric triglyceride, 1-3% coconut oil alcohol-caprylate / caprate, and 0.1-0.5% tocopherol acetate.

8. The skin care product according to claim 7, characterized in that: The butylene glycol cocoate mixture at least comprises isostearyl alcohol, butylene glycol cocoate and ethyl cellulose.

9. The skin care product according to claim 5, characterized in that: Calculated by weight percentage of the skin care product, the stable phase comprises 1-2% butanediol, 0.1-1% p-hydroxyacetophenone, and 0.1-1% 1,2-hexanediol.

10. A method for preparing the skin care product according to any one of claims 5 to 8, characterized in that: The following steps are involved: S1 accurately weighs the oil phase and stirs until it is completely uniform; S2 accurately weighs the water phase and stirs to homogenize and dissolve evenly; S3: Slowly add the uniform oil phase into the uniform water phase and quickly homogenize until emulsification is complete; After S4 is emulsified, cool to 60-70°C, add the stabilizing phase and stir evenly; S5 then adds a pH adjustment phase to adjust the pH to 5.5-6.5; S6 Finally cool down to below 40℃, add functional phase, stir evenly, and the mixture is ready.

Citation Information

Patent Citations

  • A serum specifically designed to repair sensitive skin.

    CN107854367B

  • Composition for regulating micro-ecological balance of skin and application thereof

    CN117959235A

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  • Barrier repairing composition, application and cosmetics

    CN120000561A