A composition with moisturizing and water-locking effects and its application

Abstract

The present invention relates to a composition with hydrating and locking water effect and its application, wherein the composition with hydrating and locking water effect comprises chlorella extract, rose water and olive oil. The present invention creatively finds that the composition consisting of the three components of chlorella extract, rose water and olive oil can have a positive effect on each other, which can not only replenish the natural moisturizing factor in keratinocytes, but also penetrate into the skin to hydrate and moisturize, thereby achieving the effect of deep hydrating and locking water.

Description

Technical Field

[0001] The invention belongs to the technical field of daily cosmetics, and particularly relates to a composition with water replenishing and water locking effects and an application thereof. Background Art

[0002] Fair, tender, smooth and shiny skin is people's endless pursuit. However, since people inevitably need to go out for activities, their skin will often be exposed to unprotected environments, which will lead to dryness, roughness, aging, and peeling of the skin. The main reason for the above phenomena is the loss of water in the skin's stratum corneum. Therefore, it is very necessary to hydrate and moisturize the skin.

[0003] CN117695196A discloses a hydrating and moisturizing facial mask liquid and its preparation method and application, wherein the facial mask liquid comprises the following components in parts by weight: 2-4 parts of glycerol, 0.2-0.6 parts of caprylhydroxamic acid / ethylhexylglycerol / glyceryl caprylate / butylene glycol / methyl propanediol, 0.2-1 parts of plant extract, 0.05-0.1 parts of water / fucose / carnosine / butylene glycol / parahydroxyacetophenone / 1,2-hexanediol, 0.001-0.005 parts of a combination of hyaluronic acid and sodium hyaluronate, 0.001-0.005 parts of hydrolyzed sclerotium gum, and 0.1-0.2 parts of betaine. The present invention significantly improves the moisturizing and hydrating effect of the prepared facial mask liquid through the synergistic effect between the components, and the moisture content of the skin after use is increased by more than 70%.

[0004] CN116785218A discloses a moisturizing and skin-moisturizing composition and its application in cosmetics. The moisturizing and skin-moisturizing composition of the invention comprises 1-5 parts of golden fork Dendrobium stem extract, 1-5 parts of Adenophora adenophora extract, 1-5 parts of Echinacea purpurogena extract, 1-5 parts of Gentiana root extract, 0.5-1.5 parts of Chuanxiong extract, 1-5 parts of Snow Lotus extract, 1-3 parts of tetrahydrocurcumin, 1-3 parts of diethylamino hydroxybenzoyl hexyl benzoate and 2-6 parts of betaine by weight. The moisturizing and skin-moisturizing composition is synergistically enhanced by the Dendrobium stem extract, Adenophora adenophora extract, Echinacea purpurogena extract, Gentiana root extract, Chuanxiong extract, Snow Lotus extract, tetrahydrocurcumin, diethylamino hydroxybenzoyl hexyl benzoate, betaine, etc., and has excellent moisturizing and whitening effects. After use, the skin feels light and moisturized, natural and non-irritating, and has excellent whitening effects.

[0005] However, although the above products have certain hydrating and moisturizing effects, their ingredients are not easily absorbed, which results in the hydrating effect not being long-lasting. Therefore, a product with more efficient hydrating and moisturizing effects and safer ingredients is provided to meet the application needs. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a composition having the effect of replenishing and locking moisture and its application.

[0007] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects comprises chlorella extract, rose water and olive oil.

[0009] The olive oil in the composition of the present invention can form a closed film on the skin surface, effectively reducing the amount of water loss through the epidermis; the chlorella extract and rose water can not only replenish the natural moisturizing factor in the keratinocytes, but also penetrate deeply into the skin to replenish and moisturize, achieving the effect of deep replenishment and water locking. The combination of the three has a synergistic effect, which can make the composition have better water replenishment, water locking and moisturizing effects.

[0010] Preferably, the mass ratio of the chlorella extract, rose water and olive oil is (1-4):(1-2):(2-5).

[0011] Wherein "1-4" may be 1.1, 1.3, 1.5, 1.8, 2, 2.1, 2.3, 2.5, 2.8, 3, 3.1, 3.3, 3.5, 3.7 or 3.9, etc.;

[0012] "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.;

[0013] “2-5” can be 2.1, 2.3, 2.5, 2.8, 3, 3.2, 3.5, 3.8, 4, 4.2, 4.5, 4.7 or 4.9, etc.

[0014] Preferably, the composition having the effect of replenishing and locking moisture further comprises mucopolysaccharide and / or squalane.

[0015] Preferably, the composition having the effect of replenishing and locking moisture also includes mucopolysaccharide and squalane.

[0016] Preferably, the composition with the effect of replenishing and locking moisture comprises chlorella extract, rose water, olive fruit oil, mucopolysaccharide and squalane.

[0017] The mucopolysaccharide is a nitrogen-containing heterogeneous polysaccharide, which is the main component of intercellular connective tissue and can moisturize and lubricate the skin; the squalane can form a natural protective film on the skin surface, help restore the balance between the skin and sebum, prevent skin dryness, and keep the skin hydrated. The composition of the present invention can further improve the effects of moisturizing, locking in water and moisturizing by adding the above two ingredients.

[0018] Preferably, the mass ratio of the chlorella extract, rose water, olive oil, mucopolysaccharide and squalane is (1-4):(1-2):(2-5):(1-2):(1-3).

[0019] Wherein "1-4" may be 1.1, 1.3, 1.5, 1.8, 2, 2.1, 2.3, 2.5, 2.8, 3, 3.1, 3.3, 3.5, 3.7 or 3.9, etc.;

[0020] The first "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.;

[0021] “2-5” can be 2.1, 2.3, 2.5, 2.8, 3, 3.2, 3.5, 3.8, 4, 4.2, 4.5, 4.7 or 4.9, etc.;

[0022] The second "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.;

[0023] “1-3” can be 1.1, 1.3, 1.5, 1.8, 2, 2.1, 2.3, 2.5, 2.7 or 2.9, etc.

[0024] Other specific point values ​​within the above numerical ranges can be selected and will not be described in detail here.

[0025] In a second aspect, the present invention provides a use of the composition with moisturizing and water-locking effects as described in the first aspect in the preparation of cosmetics.

[0026] Preferably, the cosmetics include essence water, toner, essence liquid, essence milk, face cream, face cleanser or face mask.

[0027] Preferably, the mass percentage of the composition with hydrating and water-locking effects in the cosmetic is 1-20%, for example, it can be 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18% or 19%, etc.

[0028] Other specific point values ​​within the above numerical ranges can be selected and will not be described in detail here.

[0029] In a third aspect, the present invention provides an essence water with moisturizing and hydrating effects, wherein the essence water with moisturizing and hydrating effects comprises: the composition with moisturizing and hydrating effects as described in the first aspect, a thickener, a skin conditioner and water.

[0030] Preferably, the essence water with moisturizing and hydrating effects comprises, by weight: 1-20 parts of the composition with moisturizing and hydrating effects described in the first aspect, 1-10 parts of a thickener, 1-10 parts of a skin conditioner and 50-99 parts of water.

[0031] The amount of the composition with hydrating and water-locking effect added to the essence water of the present invention 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, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts or 19 parts, etc.;

[0032] The thickener may be added in an amount of 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0033] The skin conditioning agent may be added in an amount of 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0034] The amount of water added can be 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 parts, 80 parts, 85 parts, 90 parts or 95 parts, etc.

[0035] Preferably, the thickener includes any one or a combination of at least two of xanthan gum, carbomer, glycerol polyacrylate, sodium polyacrylate or ammonium acryloyldimethyltaurate / VP copolymer.

[0036] Preferably, the skin conditioning agent further comprises any one of PEG / PPG-14 / 7 dimethyl ether, 4D hyaluronic acid or polyglycerol esters or a combination of at least two thereof.

[0037] Preferably, the skin conditioning agent comprises PEG / PPG-14 / 7 dimethyl ether, 4D hyaluronic acid and polyglycerol esters.

[0038] Preferably, the polyglycerol esters include polyglycerol-10 oleate.

[0039] In the present invention, the PEG / PPG-14 / 7 dimethyl ether can open the skin's hydrating channel, allowing the hydrating ingredients to penetrate into the skin for moisturizing and hydrating; the 4D hyaluronic acid can accelerate the regeneration of epidermal cells, thereby maintaining sufficient elastic fibers and collagen in the skin; the polyglycerol-10 oleate can help the active ingredients to be better dispersed, and can effectively lock in moisture to keep the skin moisturized. The skin conditioner obtained by combining the three can better allow the moisturizing and hydrating ingredients to be absorbed by the skin, and can also improve the moisturizing and hydrating performance of the product.

[0040] Preferably, the mass ratio of PEG / PPG-14 / 7 dimethyl ether, 4D hyaluronic acid and polyglycerol esters is (1-2):(0.1-1):(1-3).

[0041] Wherein "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.;

[0042] “0.1-1” can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc.;

[0043] “1-3” can be 1.1, 1.3, 1.5, 1.8, 2, 2.1, 2.3, 2.5, 2.7 or 2.9, etc.

[0044] Preferably, the essence water with moisturizing and hydrating effects further comprises any one of a chelating agent, a preservative, a pH regulator, and a fragrance, or a combination of at least two of them.

[0045] Other specific point values ​​within the above numerical ranges can be selected and will not be described in detail here.

[0046] In a fourth aspect, the present invention provides a method for preparing the essence water with moisturizing and hydrating effects as described in the third aspect, the preparation method comprising:

[0047] (1) heating the skin conditioning agent, thickener and water and mixing them homogeneously;

[0048] (2) After cooling, the mixture is mixed with the composition having the effect of replenishing and locking moisture to obtain the essence water having the effect of whitening and anti-aging.

[0049] Preferably, the temperature during the mixing and homogenizing in step (1) is 40-60°C, for example, it can be 41°C, 43°C, 45°C, 48°C, 50°C, 53°C, 55°C, 57°C or 59°C.

[0050] Preferably, the mixing and homogenizing in step (1) further comprises adding a chelating agent;

[0051] Preferably, the temperature in step (2) is lowered to 25-35°C, for example, 26°C, 28°C, 30°C, 32°C or 34°C.

[0052] Preferably, the step (2) further comprises any one of a preservative, a pH adjuster, and a fragrance, or a combination of at least two of them during the mixing and homogenization.

[0053] Other specific point values ​​within the above numerical ranges can be selected and will not be described in detail here.

[0054] Compared with the prior art, the present invention has the following beneficial effects:

[0055] (1) The olive oil in the composition of the present invention can form a closed film on the skin surface, effectively reducing the amount of water loss through the epidermis; the chlorella extract and rose water can not only replenish the natural moisturizing factor in the keratinocytes, but also penetrate deeply into the skin to replenish and moisturize, achieving the effect of deep replenishment and water locking. The present invention creatively discovered that the combination of the three has a synergistic effect, so that the composition has better water replenishment, water locking and moisturizing effects.

[0056] (2) The essence water prepared by adding the composition with hydrating and water-locking effect of the present invention has excellent moisturizing and hydrating effect, which is specifically reflected in that the skin moisture content growth rate of the subjects after using it for 4 weeks is above 18.8%, and the average change rate of skin elasticity R2 is above 13.4%. DETAILED DESCRIPTION

[0057] In order to further explain the technical means and effects adopted by the present invention, the technical solution of the present invention is further described below in conjunction with the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.

[0058] The following materials and comparative examples are as follows:

[0059]

[0060]

[0061] The rest of the raw materials can be used as long as they are purchased from regular dealers.

[0062] Example 1

[0063] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects comprises chlorella extract, rose water, olive oil, mucopolysaccharide and squalane in a mass ratio of 3:1.5:4:1.5:1.5.

[0064] The preparation method of the composition with the function of replenishing and locking water is to uniformly mix chlorella extract, rose water, olive oil, mucopolysaccharide and squalane to obtain the composition with the function of replenishing and locking water.

[0065] Example 2

[0066] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects comprises chlorella extract, rose water, olive oil, mucopolysaccharide and squalane in a mass ratio of 4:1:5:1:3.

[0067] The preparation method of the composition is consistent with that of Example 1.

[0068] Example 3

[0069] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects comprises chlorella extract, rose water, olive oil, mucopolysaccharide and squalane in a mass ratio of 1:2:2:2:1.

[0070] The preparation method of the composition is consistent with that of Example 1.

[0071] Example 4

[0072] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects comprises chlorella extract, rose water and olive oil in a mass ratio of 3:1.5:4.

[0073] The preparation method of the composition is as described in Example 1.

[0074] Example 5

[0075] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects comprises chlorella extract, rose water, olive oil and squalane in a mass ratio of 3:1.5:4:3.

[0076] The preparation method of the composition is consistent with that of Example 1.

[0077] Example 6

[0078] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects comprises chlorella extract, rose water, olive oil and mucopolysaccharide in a mass ratio of 3:1.5:4:3.

[0079] The preparation method of the composition is consistent with that of Example 1.

[0080] Example 7

[0081] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects is chlorella extract, rose water, olive oil, mucopolysaccharide and squalane in a mass ratio of 5:0.5:6:0.5:4.

[0082] The preparation method of the composition is consistent with that of Example 1.

[0083] Example 8

[0084] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects comprises chlorella extract, rose water, olive oil, mucopolysaccharide and squalane in a mass ratio of 0.5:3:1:3:0.5.

[0085] The preparation method of the composition is consistent with that of Example 1.

[0086] Comparative Example 1

[0087] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects does not include chlorella extract, and the reduced amount thereof is distributed to rose water and olive oil according to a mass ratio, and the remaining components and proportions are consistent with those in Example 1.

[0088] The preparation method of the composition is as described in Example 1.

[0089] Comparative Example 2

[0090] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects does not include olive oil, and the reduced amount thereof is distributed to chlorella extract and rose water according to a mass ratio, and the remaining components and proportions are consistent with those in Example 1.

[0091] The preparation method of the composition is as described in Example 1.

[0092] Comparative Example 3

[0093] This embodiment provides a composition with moisturizing and water-locking effects, wherein the composition with moisturizing and water-locking effects does not include rose water, and the reduced amount thereof is distributed to chlorella extract and olive oil according to a mass ratio, and the remaining components and proportions are consistent with those in Example 1.

[0094] The preparation method of the composition is as described in Example 1.

[0095] Application Example 1

[0096] This application example provides an essence water with moisturizing and hydrating effects. The components of the essence water are 15 parts by weight of the composition with moisturizing and hydrating effects of Example 1, 8 parts of skin conditioners, 1 part of thickener (xanthan gum), and water is added to 100 parts.

[0097] The skin conditioning agents are PEG / PPG-14 / 7 dimethyl ether, 4D hyaluronic acid and polyglycerol-10 oleate in a mass ratio of 3:1:3.

[0098] The preparation method of the essence water with moisturizing and hydrating effects is as follows:

[0099] (1) Mix the thickener, skin conditioner and water at 55°C until homogeneous.

[0100] (2) After cooling to 35° C., the mixture is mixed with a composition having a moisturizing and water-locking effect to obtain the essence water having a moisturizing and water-locking effect.

[0101] Application Example 2-8

[0102] This application example provides eight kinds of essence waters with moisturizing and hydrating effects. The difference between the essence waters and application example 1 is that the composition with moisturizing and hydrating effects of example 1 is replaced by the composition with moisturizing and hydrating effects of examples 2-8 in equal amounts, and the remaining components and amounts are the same as those in application example 1. The preparation method of the essence water refers to application example 1.

[0103] Application Example 9

[0104] This application example provides an essence water with moisturizing and hydrating effects. The only difference between the essence water and Application Example 1 is that the skin conditioner is PEG / PPG-14 / 7 dimethyl ether and 4D hyaluronic acid in a mass ratio of 3:1, and the amount of the skin conditioner is kept unchanged. The other components and amounts are consistent with those in Application Example 1, and the preparation method refers to Application Example 1.

[0105] Application Example 10

[0106] This application example provides an essence water with moisturizing and hydrating effects. The only difference between the essence water and Application Example 1 is that the skin conditioner is PEG / PPG-14 / 7 dimethyl ether and polyglycerol-10 oleate in a mass ratio of 1:1, and the amount of the skin conditioner is kept unchanged. The other components and amounts are consistent with those in Application Example 1. The preparation method refers to Application Example 1.

[0107] Application Example 11

[0108] This application example provides an essence water with moisturizing and hydrating effects. The only difference between the essence water and Application Example 1 is that the skin conditioner is 4D hyaluronic acid and polyglycerol-10 oleate in a mass ratio of 1:3, and the amount of the skin conditioner is kept unchanged. The other components and amounts are consistent with those in Application Example 1, and the preparation method refers to Application Example 1.

[0109] Comparative Application Examples 1-3

[0110] This comparative application example provides three essence waters with moisturizing and hydrating effects. The difference between the essence water and application example 1 is that the composition with moisturizing and hydrating effects of example 1 is replaced by the composition with moisturizing and hydrating effects of comparative examples 1-3 in equal amounts, and the remaining components and amounts are the same as those in application example 1. The preparation method of the essence water refers to application example 1.

[0111] Comparative Application Example 4

[0112] This comparative application example provides an essence water with moisturizing and hydrating effects. The essence water differs from Application Example 1 only in that it does not include a composition with moisturizing and hydrating effects, and the reduced amount is supplemented by water. The remaining components and amounts are consistent with those in Application Example 1, and the preparation method refers to Application Example 1.

[0113] Test Example 1: Improvement of skin moisture and firming of skin

[0114] The effects of improving skin moisture and tightening skin were evaluated by using the essence water prepared in Example 1-11 and Comparative Example 1-4:

[0115] 150 users with dull, yellowish, and dry facial skin, aged between 20 and 45 years old, were randomly selected and divided into 15 groups, with 10 people in each group. The 15 groups of test subjects respectively tried the essence water prepared in Application Examples 1-11 and Comparative Application Examples 1-4, once in the morning and once in the evening, for 28 days. During the test period, the subjects were not allowed to use other items that maintain skin moisture and skin elasticity, or cosmetics that affect the results, and did not change their original eating habits during the test period.

[0116] On the 0th day and the 28th day, the skin moisture content was tested with the skin moisture tester Corneometer CM825 to evaluate the moisture content of the skin before and after. The probe was used to measure the same tested area 3 times and the average value was taken. The results are shown in Table 1.

[0117] Cutometer MPA580 was used to test the skin condition on the 0th and 30th days. The test site was the zygomatic region. The probe was measured three times in the same test area and the average value was taken. The test parameter is R2 (the ratio of the skin's rebound amount Ua without negative pressure to the maximum stretch amount Uf with negative pressure). The closer R2 is to 1, the better the skin's elasticity. The average change value of R2 = R2 value on the 30th day - R2 value on the 0th day, and the average change rate of R2 = R2 average change value / R2 value on the 0th day. The specific test results of skin elasticity are shown in Table 1.

[0118] Table 1

[0119] Group Moisture content growth rate (%) Average change rate of skin elasticity R2 (%) Application Example 1 19.8 14.7 Application Example 2 19.1 13.9 Application Example 3 18.8 13.4 Application Example 4 10.3 8.2 Application Example 5 12.2 10.5 Application Example 6 13.7 9.8 Application Example 7 17.4 12.6 Application Example 8 16.9 12.8 Application Example 9 15.4 11.9 Application Example 10 16.3 12.4 Application Example 11 16.7 12.5 Comparative application example 1 10.8 8.6 Comparative Application Example 2 9.6 9.4 Comparative Application Example 3 11.4 8.7 Comparative Application Example 4 6.8 5.7

[0120] The results in Table 1 show that compared with comparative application example 4, the essence water involved in application examples 1-3 of the present invention has better effects of improving skin moisture and moisturizing the skin, indicating that the composition with hydrating and water-locking efficacy of the present invention has better moisturizing and hydrating efficacy. It can be seen from comparative application examples 1-3 that the three components of chlorella extract, rose water and olive oil promote each other in this efficacy and have an unexpected synergistic effect.

[0121] Test Example 2

[0122] In vitro gravimetric moisturizing performance test

[0123] The essence water provided in application examples 1-11 and comparative application examples 1-4 was tested for moisturizing performance by in vitro weighing method, the method is as follows: 0.2g of the sample to be tested was weighed and evenly coated on a 5cm×5cm glass plate with microporous ventilation tape, and the glass plate was placed in a constant temperature and humidity dryer, and the mass of the glass plate was weighed after being placed for 4 hours, and its moisturizing rate was calculated. The moisturizing rate calculation formula is:

[0124] Moisture retention rate / %=(M2-M0) / (M1-M0)×100%.

[0125] Wherein, M0 is the mass of the glass plate / g, M1 is the mass of the glass plate after adding the sample / g, and M2 is the mass of the glass plate after being placed in the dryer for a certain number of hours / g.

[0126] The specific test results are shown in Table 2:

[0127] Table 2

[0128]

[0129]

[0130] It can be seen from the test data in Table 2 that the moisturizing rate of the essence water prepared by adding the composition with moisturizing and locking efficacy of the present invention is above 85% after 4 hours, indicating that the three ingredients of chlorella extract, rose water and olive oil in the composition with moisturizing and locking efficacy cooperate with each other, have a synergistic effect, and can lastingly improve the skin's water locking and moisturizing effects.

[0131] Test Example 3 Consumer Sensory Effect Evaluation

[0132] 150 female volunteers aged between 30 and 35 were selected as test subjects and randomly divided into 15 groups, with 10 people in each group. Test method: The test subjects used the essence water of application examples 1-11 and comparative application examples 1-4, twice a day, for 30 consecutive days. After use, the test subjects evaluated the moisturizing effect, mildness and moisturizing effect before and after using the essence water and scored them using a 5-point system: the highest score is 5 points, 4.5-5 means very good, very satisfactory; 3.5-4.5 points are good; 2.5-3.5 points are medium and acceptable; and below 2.5 points are not good and unacceptable. The score of each group is the average of 10 people, and the results are shown in Table 3.

[0133] Table 3

[0134]

[0135]

[0136] As shown in Table 3, the essence water of the present invention achieves a good moisturizing effect through the combination of a specific composition with hydrating and water-locking effects and a skin conditioner, and the ingredients used are mild and non-irritating, and have a good effect of moisturizing the skin.

[0137] Test Example 4 Safety Evaluation:

[0138] The specific method is as follows: 40 females aged 18-35 years old with no history of allergies were selected, and each subject tried the samples prepared in Application Examples 1-11. After cleaning the back of the subject, the spot tester with the sample was applied to the selected position on the back with a non-irritating tape. After pasting, it was lightly pressed with fingers to make it evenly attached to the skin for 48 hours. The subject kept the patch area dry within 48 hours, and avoided intense exercise, scratching the patch area, long-term sunlight exposure, etc. After 48 hours, the tester was removed and marked, and after 30 minutes, the indentation disappeared and the judgment was made under sufficient light.

[0139] The grading standards for adverse skin reactions are shown in Table 4:

[0140] Table 4

[0141]

[0142] The results are shown in Table 5:

[0143] Table 5

[0144]

[0145] It can be seen from the data in Table 5 that after removing the spot tester, no adverse reactions were observed on the skin of the volunteers, which indicates that the raw materials used in the essence water of the present invention are safe and non-irritating, have no adverse reactions to the human body, and are highly safe.

[0146] The applicant declares that the present invention illustrates a composition with hydrating and water-locking effects and its application through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0147] 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, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0148] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A composition with moisturizing and water-locking effects, characterized in that: The composition with the effect of replenishing and locking moisture comprises chlorella extract, rose water, olive fruit oil, mucopolysaccharide and squalane; The mass ratio of the chlorella extract, rose water, olive oil, mucopolysaccharide and squalane is (1-4): (1-2): (2-5): (1-2): (1-3).

2. Use of the composition with moisturizing and water-locking effects as claimed in claim 1 in the preparation of cosmetics.

3. Use of the composition with moisturizing and water-locking effect as claimed in claim 2 in the preparation of cosmetics, characterized in that: The cosmetics include essence water, lotion, essence liquid, essence milk, face cream, face cleanser or face mask.

4. Use of the composition with moisturizing and water-locking effect as claimed in claim 2 in the preparation of cosmetics, characterized in that: The mass percentage of the composition with the effect of replenishing and locking moisture in the cosmetic is 1-20%.

5. An essence water with moisturizing and hydrating effects, characterized in that: The essence water with moisturizing and hydrating effects comprises: the composition with moisturizing and hydrating effects as claimed in claim 1, a thickener, a skin conditioner and water.

6. The essence water with moisturizing and hydrating effect as claimed in claim 5, characterized in that: The essence water with moisturizing and hydrating effects comprises, by weight: 1-20 parts of the composition with moisturizing and hydrating effects according to claim 1, 1-10 parts of a thickener, 1-10 parts of a skin conditioner and 50-99 parts of water.

7. The essence water with moisturizing and hydrating effect as claimed in claim 5, characterized in that: The thickener includes any one of xanthan gum, carbomer, glycerol polyacrylate, sodium polyacrylate or ammonium acryloyldimethyltaurate / VP copolymer or a combination of at least two thereof.

8. The essence water with moisturizing and hydrating effect as claimed in claim 5, characterized in that: The skin conditioning agent includes any one of PEG / PPG-14 / 7 dimethyl ether, 4D hyaluronic acid or polyglycerol esters or a combination of at least two thereof.

9. The essence water with moisturizing and hydrating effect as claimed in claim 8, characterized in that: The skin conditioning agent includes a combination of PEG / PPG-14 / 7 dimethyl ether, 4D hyaluronic acid and polyglycerol esters.

10. The essence water with moisturizing and hydrating effect as claimed in claim 9, characterized in that: The mass ratio of the PEG / PPG-14 / 7 dimethyl ether, 4D hyaluronic acid and polyglycerol esters is (1-2): (0.1-1): (1-3).

11. The essence water with moisturizing and hydrating effect as claimed in claim 5, characterized in that: The essence water with moisturizing and hydrating effects further comprises any one of a chelating agent, a preservative, a pH regulator, and a fragrance, or a combination of at least two of them.

12. A method for preparing an essence water with moisturizing and hydrating effects as claimed in any one of claims 5 to 11, characterized in that: The preparation method comprises: (1) Warming up the skin conditioning agent, thickener and water and mixing them uniformly; (2) After cooling, the mixture is mixed with the composition having the effect of replenishing and locking moisture to obtain the essence having the effect of whitening and anti-aging.

13. The method for preparing the essence water with moisturizing and hydrating effects according to claim 12, characterized in that: The temperature during the mixing and homogenization in step (1) is 40-60°C.

14. The method for preparing the essence water with moisturizing and hydrating effects according to claim 12, characterized in that: The step (1) of mixing and homogenizing also includes adding a chelating agent.

15. The method for preparing the essence water with moisturizing and hydrating effects according to claim 12, characterized in that: Step (2) is cooling to 25-35°C.

16. The method for preparing the essence water with moisturizing and hydrating effects according to claim 12, characterized in that: The homogenizing mixing in step (2) may also include any one of a preservative, a pH adjuster, and a fragrance, or a combination of at least two of them.

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