Skin tightening composition and application thereof

Abstract

The invention discloses a skin tightening composition and application thereof, and belongs to the technical field of skin care products. The skin tightening composition is prepared from the following raw materials in parts by weight: 10 to 12 parts of chlamydomonas snowflake extract, 5 to 8 parts of linseed oil, 8.1 parts of compound amino acid, 8 to 12 parts of pomegranate fruit extract fermentation product compounded with lactobacillus, 11 to 13 parts of oleuropein, 5.6 parts of vitamin C, 4 to 7 parts of alpha-arbutin powder, 5 to 8 parts of acetyl hexapeptide-85, 4.2 parts of hyaluronic acid and 5.7 parts of retinol. The chlamydomonas snowmobile extract, the flaxseed oil, the pomegranate fruit extract fermentation product compounded with the lactobacillus, the compound amino acid and the oleuropein have a synergistic effect to improve the firming pigment inhibition effect.

Description

Technical Field

[0001] The invention belongs to the technical field of skin care products and relates to a skin tightening composition and application thereof. Background Art

[0002] Under the influence of different genes, age and environmental factors, human skin will have problems such as sagging skin, spots, wrinkles, crow's feet, eye bags and age spots. The root cause is collagen denaturation, changes in the structure of the dermis and the production of melanin. The problems of collagen loss and sagging skin can be solved by stimulating the synthesis of elastin, collagen and hyaluronic acid through active substances; and the problem of melanin can be solved by inhibiting the activity of tyrosinase, blocking the migration of melanin to keratinocytes, metabolizing melanin and anti-oxidation.

[0003] There are many ways to alleviate these problems, and there are an endless stream of products in the beauty and skin care industry. However, the effects are single, the efficacy is not obvious, or some products are easily oxidized during use and have poor stability, which are always problems. Summary of the invention

[0004] The object of the present invention is to provide a skin tightening composition and its application. In the present invention, the problems of single effect, unclear efficacy or easy oxidation existing in existing products are overcome. The present invention is based on the snow chlamydomonas extract, linseed oil, pomegranate fruit extract fermentation product compounded with lactobacillus, composite amino acids, oleuropein, and vitamin C, α-arbutin powder, acetyl hexapeptide-8, hyaluronic acid and retinol and other substances are compounded, wherein the snow chlamydomonas extract, linseed oil, pomegranate fruit extract fermentation product compounded with lactobacillus, composite amino acids and oleuropein synergistically enhance the tightening pigment inhibition effect.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A skin firming composition comprises the following raw material components in parts by mass: 10-12 parts of snow chlamydomonas extract, 5-8 parts of linseed oil, 8.1 parts of composite amino acids, 8-12 parts of pomegranate fruit extract fermentation product compounded with lactobacillus, 11-13 parts of oleuropein, 5.6 parts of vitamin C, 4-7 parts of α-arbutin powder, 5-8 parts of acetyl hexapeptide-8, 4.2 parts of hyaluronic acid, and 5.7 parts of retinol.

[0007] As a preferred technical solution of the present invention, the composite amino acid comprises 0.9 parts by mass of lysine, 1.4 parts by mass of serine, 2.7 parts by mass of arginine, 2.5 parts by mass of aspartic acid, and 0.6 parts by mass of cysteine.

[0008] A method for preparing a skin tightening composition, the preparation method comprising the following steps:

[0009] (1) Weighing corresponding weight portions of the snow lichen extract, linseed oil and composite amino acids and homogenizing them in a vacuum stirrer for 5 to 8 minutes at a temperature of 50 to 60° C. and a stirring speed of 750 to 1000 r / min to obtain a mixture A;

[0010] (2) homogenizing the pomegranate fruit extract fermentation product compounded with lactobacillus, oleuropein, vitamin C, α-arbutin powder and acetyl hexapeptide-8 in a vacuum stirrer for 5 to 8 minutes at a temperature of 40 to 60° C. and a stirring speed of 750 to 1000 r / min to obtain a mixture B;

[0011] (3) After the mixture A and the mixture B are cooled to 22-30° C., hyaluronic acid, retinol, the mixture A and the mixture B are added into a vacuum stirrer at a speed of 900-1100 r / min and homogenized for 10-15 min to obtain a mixture C;

[0012] (4) putting the mixture C into a freeze-drying glass bottle, placing it in a vacuum dryer for vacuuming and freezing to obtain a freeze-dried powdered skin firming composition;

[0013] (5) The freeze-dried powdered skin tightening composition is placed in a light-proof brown glass bottle, evacuated and sealed with a rubber film and a metal film, wherein the metal film covers the rubber film.

[0014] As a preferred technical solution of the present invention, the preparation method of the α-arbutin powder is as follows: α-arbutin is firstly placed in an ultrasonic pulverizer for pulverization, passed through a 260-300 mesh sieve, and sterilized by high temperature heating and drying to obtain the α-arbutin powder.

[0015] As a preferred technical solution of the present invention, the pomegranate fruit extract fermentation product compounded with lactobacillus is prepared by adding lactobacillus to the pomegranate fruit extract, mixing evenly and placing the mixture in a biochemical incubator at 40 to 55° C. for 16 to 24 hours. After the fermentation is completed, the mixture is centrifuged twice, and the supernatants are collected and combined to obtain the pomegranate fruit extract fermentation product compounded with lactobacillus.

[0016] As a preferred technical solution of the present invention, the extraction method of the pomegranate fruit extract is as follows:

[0017] a1. Remove dirt from the surface of the pomegranate fruit and dry it in a 50°C constant temperature drying oven to constant weight;

[0018] a2. Use a grinder to crush and sieve through a 100-mesh sieve to obtain pomegranate fruit powder;

[0019] a3. Pomegranate fruit powder and distilled water were mixed in a ratio of 1g:10mL, heated in a 55℃ constant temperature water bath for 0.5-1h, filtered through multi-layer gauze, the residue and distilled water were mixed again in a ratio of 1g:10mL, heated in a 55℃ water bath for 1h, filtered again, and the filtrates from the two filtrations were combined;

[0020] a4. The combined filtrate is placed in a water bath for evaporation and concentration to obtain pomegranate fruit extract.

[0021] A direct use method of the skin tightening composition, the use method is as follows:

[0022] b1. Tear off the metal film at the mouth of the brown glass bottle, take pure water or mineral water with a syringe, pierce the rubber film and inject it into the brown glass bottle, shake it up and down for 1 to 2 minutes until there is no precipitation in the bottle to obtain a mixed solution;

[0023] b2. Use the above syringe to draw up the mixed solution. The amount to be used depends on individual needs.

[0024] An application of a skin tightening composition, wherein the composition can be applied to any one of toner, essence, skin care cream, eye cream and facial mask.

[0025] As a preferred technical solution of the present invention, the mass proportion of the skin firming composition in toner is 1% to 5%; the mass proportion of the skin firming composition in essence is 8% to 12%; the mass proportion of the skin firming composition in skin care cream and eye cream is 20% to 35%; the mass proportion of the skin firming composition in facial mask is 10% to 15%.

[0026] Beneficial effects of the present invention:

[0027] (1) The skin tightening composition provided by the present invention has a synergistic tightening and pigmentation inhibition effect of Chlamydomonas aeruginosa extract, linseed oil, pomegranate fruit extract fermentation product compounded with lactobacillus, composite amino acids and oleuropein, and has a broad application market.

[0028] (2) The skin tightening composition provided by the present invention contains a pomegranate fruit extract fermentation product compounded with lactobacillus, which not only has an excellent pigment inhibition effect, but the added lactobacillus can also effectively prevent the pomegranate fruit extract fermentation product from being oxidized, thereby ensuring the pigment inhibition and whitening effects.

[0029] (3) The skin firming composition provided by the present invention is sealed in the form of freeze-dried powder, which further prevents the active ingredients in the skin firming composition from being oxidized and can also extend the shelf life of the skin firming composition. DETAILED DESCRIPTION

[0030] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in combination with the embodiments.

[0031] Example 1

[0032] A skin firming composition comprises the following raw material components in parts by mass: 10 parts of snow chlamydomonas extract, 5 parts of linseed oil, 8.1 parts of composite amino acids, 8 parts of pomegranate fruit extract fermentation product compounded with lactobacillus, 11 parts of oleuropein, 5.6 parts of vitamin C, 4 parts of α-arbutin powder, 5 parts of acetyl hexapeptide-8, 4.2 parts of hyaluronic acid, and 5.7 parts of retinol.

[0033] The complex amino acid comprises 0.9 parts of lysine, 1.4 parts of serine, 2.7 parts of arginine, 2.5 parts of aspartic acid, and 0.6 parts of cysteine.

[0034] A method for preparing a skin tightening composition, the preparation method comprising the following steps:

[0035] (1) Weighing corresponding weight portions of Chlamydomonas aeruginosa extract, linseed oil and composite amino acids and homogenizing them in a vacuum stirrer for 5 minutes at a temperature of 50° C. and a stirring speed of 850 r / min to obtain a mixture A;

[0036] (2) the pomegranate fruit extract fermentation product compounded with lactobacillus, oleuropein, vitamin C, α-arbutin powder and acetyl hexapeptide-8 were homogenized in a vacuum stirrer for 5 minutes at a temperature of 45° C. and a stirring speed of 850 r / min to obtain a mixture B;

[0037] (3) After mixture A and mixture B are cooled to 25° C., hyaluronic acid, retinol, mixture A and mixture B are added into a vacuum stirrer at a speed of 1100 r / min and homogenized for 12 min to obtain mixture C;

[0038] (4) putting the mixture C into a freeze-drying glass bottle, placing it in a vacuum dryer for vacuuming and freezing to obtain a freeze-dried powdered skin firming composition;

[0039] (5) The freeze-dried powdered skin tightening composition is placed in a light-proof brown glass bottle, evacuated and sealed with a rubber film and a metal film, wherein the metal film covers the rubber film.

[0040] The preparation method of the α-arbutin powder is as follows: firstly, the α-arbutin is placed in an ultrasonic pulverizer for pulverization, passed through a 300-mesh sieve, and sterilized by high-temperature heating and drying to obtain the α-arbutin powder.

[0041] The preparation method of the pomegranate fruit extract fermentation product compounded with lactobacillus is as follows: adding lactobacillus to the pomegranate fruit extract, mixing evenly and then culturing in a 45° C. biochemical incubator for 16 hours, centrifuging twice after the fermentation is completed, collecting and merging the supernatants, and obtaining the pomegranate fruit extract fermentation product compounded with lactobacillus.

[0042] The extraction method of the pomegranate fruit extract is as follows:

[0043] (1) Remove dirt from the surface of the pomegranate fruit and dry it in a constant temperature drying oven at 50° C. to a constant weight;

[0044] (2) crushing with a grinder and passing through a 100-mesh sieve to obtain pomegranate fruit powder;

[0045] (3) Pomegranate fruit powder and distilled water were mixed in a ratio of 1 g:10 mL, heated in a 55°C constant temperature water bath for 0.5 h, filtered through multi-layer gauze, the residue and distilled water were mixed again in a ratio of 1 g:10 mL, heated in a 55°C water bath for 1 h, filtered again, and the filtrates from the above two filtrations were combined;

[0046] (4) placing the combined filtrate in a water bath for evaporation and concentration to finally obtain the pomegranate fruit extract.

[0047] A direct use method of the skin tightening composition, the use method is as follows:

[0048] (1) Tear off the metal film at the mouth of the brown glass bottle, take pure water or mineral water with a syringe, pierce the rubber film and inject it into the brown glass bottle, shake it up and down evenly for 1 minute until there is no precipitation in the bottle to obtain a mixed solution;

[0049] (2) Use the syringe to draw up the mixed solution. The amount to be used depends on individual needs.

[0050] An application of a skin tightening composition, wherein the composition is applied to a toner.

[0051] The mass proportion of the skin tightening composition in the toner is 5%.

[0052] Example 2

[0053] A skin firming composition, comprising the following raw material components in parts by mass: 12 parts of snow chlamydomonas extract, 8 parts of linseed oil, 8.1 parts of complex amino acids, 12 parts of pomegranate fruit extract fermentation product compounded with lactobacillus, 13 parts of oleuropein, 5.6 parts of vitamin C, 6 parts of α-arbutin powder, 5 parts of acetyl hexapeptide-8, 4.2 parts of hyaluronic acid, and 5.7 parts of retinol.

[0054] The complex amino acid comprises 0.9 parts of lysine, 1.4 parts of serine, 2.7 parts of arginine, 2.5 parts of aspartic acid, and 0.6 parts of cysteine.

[0055] A method for preparing a skin tightening composition, the preparation method comprising the following steps:

[0056] (1) Weighing corresponding weight portions of Chlamydomonas aeruginosa extract, linseed oil and composite amino acids and homogenizing them in a vacuum stirrer for 6 minutes at a temperature of 55° C. and a stirring speed of 850 r / min to obtain a mixture A;

[0057] (2) the pomegranate fruit extract fermentation product compounded with lactobacillus, oleuropein, vitamin C, α-arbutin powder and acetyl hexapeptide-8 were homogenized in a vacuum stirrer for 8 minutes at a temperature of 45° C. and a stirring speed of 850 r / min to obtain a mixture B;

[0058] (3) After the mixture A and the mixture B are cooled to 25° C., hyaluronic acid, retinol, the mixture A and the mixture B are added into a vacuum stirrer at a speed of 1100 r / min and homogenized for 10 min to obtain a mixture C;

[0059] (4) putting the mixture C into a freeze-drying glass bottle, placing it in a vacuum dryer for vacuuming and freezing to obtain a freeze-dried powdered skin firming composition;

[0060] (5) The freeze-dried powdered skin tightening composition is placed in a light-proof brown glass bottle, evacuated and sealed with a rubber film and a metal film, wherein the metal film covers the rubber film.

[0061] The preparation method of the α-arbutin powder is as follows: firstly, the α-arbutin is placed in an ultrasonic pulverizer for pulverization, passed through a 300-mesh sieve, and sterilized by high-temperature heating and drying to obtain the α-arbutin powder.

[0062] The preparation method of the pomegranate fruit extract fermentation product compounded with lactobacillus is as follows: adding lactobacillus to the pomegranate fruit extract, mixing evenly and then culturing in a 45° C. biochemical incubator for 16 hours, centrifuging twice after the fermentation is completed, collecting and merging the supernatants, and obtaining the pomegranate fruit extract fermentation product compounded with lactobacillus.

[0063] The extraction method of the pomegranate fruit extract is as follows:

[0064] (1) Remove dirt from the surface of the pomegranate fruit and dry it in a constant temperature drying oven at 50° C. to a constant weight;

[0065] (2) crushing with a grinder and passing through a 100-mesh sieve to obtain pomegranate fruit powder;

[0066] (3) Pomegranate fruit powder and distilled water were mixed in a ratio of 1 g:10 mL, heated in a 55°C constant temperature water bath for 0.6 h, filtered through multi-layer gauze, the residue and distilled water were mixed again in a ratio of 1 g:10 mL, heated in a 55°C water bath for 1 h, filtered again, and the filtrates from the above two filtrations were combined;

[0067] (4) placing the combined filtrate in a water bath for evaporation and concentration to finally obtain the pomegranate fruit extract.

[0068] A direct use method of the skin tightening composition, the use method is as follows:

[0069] (1) Tear off the metal film at the mouth of the brown glass bottle, take pure water or mineral water with a syringe, pierce the rubber film and inject it into the brown glass bottle, shake it up and down evenly for 1 minute until there is no precipitation in the bottle to obtain a mixed solution;

[0070] (2) Use the syringe to draw up the mixed solution. The amount to be used depends on individual needs.

[0071] An application of a skin tightening composition, wherein the composition is applied to a toner.

[0072] The mass proportion of the skin tightening composition in the toner is 5%.

[0073] Example 3

[0074] A skin firming composition comprises the following raw material components in parts by mass: 12 parts of snow chlamydomonas extract, 6 parts of linseed oil, 8.1 parts of complex amino acids, 10 parts of pomegranate fruit extract fermentation product compounded with lactobacillus, 12 parts of oleuropein, 5.6 parts of vitamin C, 4-7 parts of α-arbutin powder, 6 parts of acetyl hexapeptide-8, 4.2 parts of hyaluronic acid, and 5.7 parts of retinol.

[0075] The complex amino acid comprises 0.9 parts of lysine, 1.4 parts of serine, 2.7 parts of arginine, 2.5 parts of aspartic acid, and 0.6 parts of cysteine.

[0076] A method for preparing a skin tightening composition, the preparation method comprising the following steps:

[0077] (1) Weighing corresponding weight portions of Chlamydomonas aeruginosa extract, linseed oil and composite amino acids and homogenizing them in a vacuum stirrer for 7 minutes at a temperature of 55° C. and a stirring speed of 850 r / min to obtain a mixture A;

[0078] (2) the pomegranate fruit extract fermentation product compounded with lactobacillus, oleuropein, vitamin C, α-arbutin powder and acetyl hexapeptide-8 were homogenized in a vacuum stirrer for 6 minutes at a temperature of 45° C. and a stirring speed of 850 r / min to obtain a mixture B;

[0079] (3) After the mixture A and the mixture B are cooled to 25° C., hyaluronic acid, retinol, the mixture A and the mixture B are added into a vacuum stirrer at a speed of 1000 r / min and homogenized for 12 min to obtain a mixture C;

[0080] (4) putting the mixture C into a freeze-drying glass bottle, placing it in a vacuum dryer for vacuuming and freezing to obtain a freeze-dried powdered skin firming composition;

[0081] (5) The freeze-dried powdered skin tightening composition is placed in a light-proof brown glass bottle, evacuated and sealed with a rubber film and a metal film, wherein the metal film covers the rubber film.

[0082] The preparation method of the α-arbutin powder is as follows: firstly, the α-arbutin is placed in an ultrasonic pulverizer for pulverization, passed through a 280-mesh sieve, and sterilized by high-temperature heating and drying to obtain the α-arbutin powder.

[0083] The preparation method of the pomegranate fruit extract fermentation product compounded with lactobacillus is as follows: adding lactobacillus to the pomegranate fruit extract, mixing evenly and then culturing in a 45°C biochemical incubator for 16 hours, centrifuging twice after the fermentation is completed, collecting and merging the supernatants, and obtaining the pomegranate fruit extract fermentation product compounded with lactobacillus.

[0084] The extraction method of the pomegranate fruit extract is as follows:

[0085] (1) Remove dirt from the surface of the pomegranate fruit and dry it in a constant temperature drying oven at 50° C. to a constant weight;

[0086] (2) crushing with a grinder and passing through a 100-mesh sieve to obtain pomegranate fruit powder;

[0087] (3) Pomegranate fruit powder and distilled water were mixed in a ratio of 1 g:10 mL, heated in a 55°C constant temperature water bath for 0.5 h, filtered through multi-layer gauze, the residue and distilled water were mixed again in a ratio of 1 g:10 mL, heated in a 55°C water bath for 1 h, filtered again, and the filtrates from the above two filtrations were combined;

[0088] (4) placing the combined filtrate in a water bath for evaporation and concentration to finally obtain the pomegranate fruit extract.

[0089] A direct use method of the skin tightening composition, the use method is as follows:

[0090] (1) Tear off the metal film at the mouth of the brown glass bottle, take pure water or mineral water with a syringe, pierce the rubber film and inject it into the brown glass bottle, shake it up and down evenly for 2 minutes until there is no precipitation in the bottle to obtain a mixed solution;

[0091] (2) Use the syringe to draw up the mixed solution. The amount to be used depends on individual needs.

[0092] An application of a skin tightening composition, wherein the composition is applied to a toner.

[0093] The mass proportion of the skin tightening composition in the toner is 5%.

[0094] Comparative Example 1

[0095] On the basis of Example 2, no lactobacillus was compounded in the pomegranate fruit extract fermentation product.

[0096] Comparative Example 2

[0097] Based on Example 2, the Chlamydomonas australis extract was removed and replaced with an equal weight of linseed oil.

[0098] Comparative Example 3

[0099] Based on Example 2, the linseed oil was removed and replaced with an equal weight of Chlamydomonas aeruginosa extract.

[0100] Comparative Example 4

[0101] On the basis of Example 2, the fermentation product of pomegranate fruit extract compounded with lactobacillus was removed and replaced with an equal weight of Chlamydomonas aeruginosa extract.

[0102] Comparative Example 5

[0103] On the basis of Example 2, the complex amino acids were removed and replaced with an equal weight of Chlamydomonas aeruginosa extract.

[0104] Comparative Example 6

[0105] On the basis of Example 2, oleuropein was removed and replaced with an equal weight of Chlamydomonas aeruginosa extract.

[0106] Comparative Example 7

[0107] Based on Example 2, the prepared liquid mixture C was stored in a brown bottle in vacuum without the step of freezing and vacuumizing to powder.

[0108] Performance Test:

[0109] 1. Tyrosinase activity inhibition test

[0110] Test materials: the skin tightening compositions prepared in Examples 1 to 3 and Comparative Examples 1 to 7.

[0111] Test method: Refer to the relevant literature (Wang Baiqiang. Analysis of the cause of skin melanin and research on the evaluation system of whitening and anti-freckle effect [J]. Chemical Engineering and Equipment, 2008, (02): 14-18. [2017-09-29].) to prepare each group of reaction solutions, keep the mixture in a constant temperature water bath at 37°C, add tyrosinase to the tyrosine solution, and measure the absorbance of the skin firming composition with a solution concentration of 1.0% at 475 nm using an enzyme marker (Multiskan FC, Thermo). The tyrosinase activity inhibition rate is shown in Table 1 below.

[0112] Table 1 Tyrosinase activity inhibition rate

[0113] Group Tyrosinase activity inhibition rate (%) Example 1 95.12 Example 2 96.04 Example 3 95.68 Comparative Example 1 86.64 Comparative Example 2 89.23 Comparative Example 3 89.75 Comparative Example 4 84.56 Comparative Example 5 87.39 Comparative Example 6 86.18 Comparative Example 7 83.47

[0114] Compared with Examples 1 to 3, in Comparative Example 1, lactobacillus is not compounded in the pomegranate fruit extract fermentation product; in Comparative Example 2, the snow chlamydomonas extract is removed; in Comparative Example 3, linseed oil is removed; in Comparative Example 4, the pomegranate fruit extract fermentation product compounded with lactobacillus is removed; in Comparative Example 5, the composite amino acid is removed; in Comparative Example 6, oleuropein is removed; in Comparative Example 7, the storage method of the composition product is liquid vacuum storage. Therefore, it can be seen from the test results in Table 1 that compounding lactobacillus in the pomegranate fruit extract fermentation product can improve the pigment inhibition effect of the composition, and at the same time, the snow chlamydomonas extract, linseed oil, the pomegranate fruit extract fermentation product compounded with lactobacillus, the composite amino acid and oleuropein have synergistic synergy to improve the pigment inhibition effect. On the other hand, the freeze-dried powder vacuum storage method is beneficial to the antioxidant effect of the composition, and further improves the pigment inhibition effect.

[0115] 2. Skin elasticity test

[0116] Test materials: toners with firming and pigment-inhibiting effects prepared in Examples 1 to 3 and Comparative Examples 1 to 7.

[0117] Test method:

[0118] (1) One hundred normal male and female volunteers aged 18 to 55 years were selected and randomly divided into 10 groups, with 10 subjects in each group.

[0119] (2) Do not use strong functional products (cosmetics, topical medications or internal health care products) 2 to 3 days before the facial test.

[0120] (3) Before the test, the subjects need to clean their facial skin uniformly, wipe it with a clean facial tissue, and keep it relaxed. Use an elasticity tester to read and record the elasticity of the skin before the test. Groups 1 to 10 correspond to using the toners with firming pigment inhibition effects of Examples 1 to 3 and Comparative Examples 1 to 7, and the subjects measure the skin elasticity at the same time.

[0121] (4) Apply 2 mL of toner with firming and pigment-inhibiting effects and pat until absorbed. The test period is 15 days, and the skin elasticity after the test is recorded.

[0122] Experimental results: The results are shown in Table 2.

[0123] Table 2 Summary of skin elasticity changes after 15 days

[0124]

[0125]

[0126] It can be seen from the data in Table 2 that the toner prepared by the skin firming composition of the present invention is compounded with lactic acid bacteria in the pomegranate fruit extract fermentation product, and the snow chlamydomonas extract, linseed oil and pomegranate fruit extract fermentation product compounded with lactic acid bacteria, composite amino acids and oleuropein have a synergistic effect in improving the skin's firming effect. On the other hand, the freeze-dried powder vacuum storage method is beneficial to the antioxidant effect of the composition, further improving the skin's firming effect.

[0127] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A skin tightening composition, characterized in that: The composition comprises the following raw materials in parts by mass: 10 to 12 parts of snow chlamydomonas extract, 5 to 8 parts of linseed oil, 8.1 parts of composite amino acids, 8 to 12 parts of pomegranate fruit extract fermentation product compounded with lactobacillus, 11 to 13 parts of oleuropein, 5.6 parts of vitamin C, 4 to 7 parts of α-arbutin powder, 5 to 8 parts of acetyl hexapeptide-8, 4.2 parts of hyaluronic acid, and 5.7 parts of retinol.

2. A skin tightening composition according to claim 1, characterized in that: The composite amino acid comprises 0.9 parts by mass of lysine, 1.4 parts by mass of serine, 2.7 parts by mass of arginine, 2.5 parts by mass of aspartic acid, and 0.6 parts by mass of cysteine.

3. A method for preparing the skin tightening composition according to any one of claims 1 to 2, characterized in that: The preparation method comprises the following steps: (1) Weighing corresponding weight portions of the snow lichen extract, linseed oil and composite amino acids and homogenizing them in a vacuum stirrer for 5 to 8 minutes at a temperature of 50 to 60° C. and a stirring speed of 750 to 1000 r / min to obtain a mixture A; (2) homogenizing the pomegranate fruit extract fermentation product compounded with lactobacillus, oleuropein, vitamin C, α-arbutin powder and acetyl hexapeptide-8 in a vacuum stirrer for 5 to 8 minutes at a temperature of 40 to 60° C. and a stirring speed of 750 to 1000 r / min to obtain a mixture B; (3) After the mixture A and the mixture B are cooled to 22-30° C., hyaluronic acid, retinol, the mixture A and the mixture B are added into a vacuum stirrer at a speed of 900-1100 r / min and homogenized for 10-15 min to obtain a mixture C; (4) putting the mixture C into a freeze-drying glass bottle, placing it in a vacuum dryer for vacuuming and freezing to obtain a freeze-dried powdered skin firming composition; (5) The freeze-dried powdered skin tightening composition is placed in a light-proof brown glass bottle, evacuated and sealed with a rubber film and a metal film, wherein the metal film covers the rubber film.

4. The method for preparing a skin tightening composition according to claim 3, characterized in that: The preparation method of the α-arbutin powder is as follows: firstly, the α-arbutin is placed in an ultrasonic pulverizer for pulverization, passed through a 260-300 mesh sieve, and sterilized by high temperature heating and drying to obtain the α-arbutin powder.

5. The method for preparing a skin tightening composition according to claim 3, characterized in that: The preparation method of the pomegranate fruit extract fermentation product compounded with lactobacillus is as follows: adding lactobacillus to the pomegranate fruit extract, mixing evenly and then culturing in a biochemical incubator at 40-55° C. for 16-24 hours, centrifuging twice after the fermentation is completed, collecting and merging the supernatants, and obtaining the pomegranate fruit extract fermentation product compounded with lactobacillus.

6. The method for preparing a skin tightening composition according to claim 5, characterized in that: The extraction method of the pomegranate fruit extract is as follows: a1. Remove dirt from the surface of the pomegranate fruit and dry it in a 50°C constant temperature drying oven to constant weight; a2. Use a grinder to crush and sieve through a 100-mesh sieve to obtain pomegranate fruit powder; a3. Mix pomegranate fruit powder and distilled water in a ratio of 1g:10mL, heat in a 55℃ constant temperature water bath for 0.5-1h, filter with multi-layer gauze, mix the residue with distilled water again in a ratio of 1g:10mL, heat in a 55℃ water bath for 1h, filter again, and combine the filtrates from the two filtrations; a4. The combined filtrate is placed in a water bath for evaporation and concentration to obtain pomegranate fruit extract.

7. A method for directly using the skin tightening composition according to any one of claims 3 to 6, characterized in that: The method of using the skin tightening composition is as follows: b1. Tear off the metal film at the mouth of the brown glass bottle, take pure water or mineral water with a syringe, pierce the rubber film and inject it into the brown glass bottle, shake it up and down for 1 to 2 minutes until there is no precipitation in the bottle to obtain a mixed solution; b2. Use the syringe in step b1 to absorb the mixed solution. The amount depends on individual needs.

8. Use of the skin tightening composition according to claims 1 to 2, characterized in that: The skin tightening composition can be applied to any one of toner, essence, skin care cream, eye cream and facial mask.

9. The use of the skin tightening composition according to claim 8, characterized in that: The mass proportion of the skin firming composition in toner is 1% to 5%; the mass proportion of the skin firming composition in essence is 8% to 12%; the mass proportion of the skin firming composition in skin care cream and eye cream is 20% to 35%; the mass proportion of the skin firming composition in facial mask is 10% to 15%.

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