Skin care composition, use method and assembly

Abstract

The invention belongs to the field of skin care products, and particularly relates to a skin care composition, a using method of the skin care composition and an assembly comprising the skin care composition. The invention provides a composition for skin care. The composition is prepared from sodium mannose phosphate, carboxymethyl chitosan and tetrahydromethylpyrimidine carboxylic acid. The components of the skin care composition provided by the invention have ionic properties and can effectively generate ionization, so that the skin care composition has conductivity and can be matched with a beauty instrument carrying a micro-current mode for use, the composition has better permeability, the permeability is obviously improved within 0-2 hours, and better skin barrier improvement, skin redness improvement and skin whitening improvement can be obtained. And the fine lines are improved. And meanwhile, the effect is ensured, and the skin care composition provides good skin feeling in the process of being matched with an instrument for use.

Description

Technical Field

[0001] The present invention belongs to the field of skin care products. More specifically, it relates to a skin care composition, a method of using the skin care composition, and a component including the skin care composition. Background Art

[0002] In recent years, the sales volume of the home beauty instrument market has increased rapidly, and the product iteration speed is very fast. Currently, the skin care products used in conjunction with beauty instruments on the market mostly exist in the form of heat-insulating gels, and their functions are relatively simple, only for moisturizing and heat insulation. With the development of the market, consumers have gradually put forward higher requirements for the skin care effects of beauty instruments, such as whether they can bring more effects other than moisturizing, such as anti-aging, soothing, etc. However, most of the current products on the market focus on optimizing the radio frequency and microcurrent mode output power and heat of the beauty instrument, that is, the instrument performance. There has been no improvement in some skin care products that enables them to be used in conjunction with beauty instruments to achieve a synergistic effect.

[0003] Therefore, there is a need in the art for a skin care composition that can not only moisturize and insulate heat, but also cooperate with beauty instruments to enhance effects such as improving fine lines, repair, and stability maintenance. Summary of the Invention

[0004] In view of this, in the first aspect, the present invention provides a skin care composition, including: sodium mannosephosphate, carboxymethyl chitosan, and ectoine.

[0005] In some specific experimental schemes, in the skin care composition, the mass ratio of sodium mannosephosphate: carboxymethyl chitosan: ectoine = (3 - 20):(2 - 15):(10 - 100).

[0006] When using the skin care composition of the present invention, its components have ionic properties and can effectively generate ionization. Therefore, it has conductivity, low resistivity and good conductivity, and can be used in conjunction with beauty instruments equipped with a microcurrent mode, making the composition have better permeability. The permeability is significantly improved within 0 - 2 hours, and it can obtain better effects of enhancing the skin barrier, improving skin flushing, and improving fine lines, and its temperature rise is stable. While ensuring the efficacy, the skin care composition of the present invention provides a good skin feel during the process of being used in conjunction with the instrument.

[0007] In some specific embodiments, the mass fraction of the final concentration of sodium mannan phosphate in the skin care composition is 0.03% to 0.2%, preferably 0.03% to 0.1%, more preferably 0.03% to 0.05%, and more preferably the mass fraction of the final concentration of sodium mannan phosphate in the skin care composition is 0.03%. For example, the mass fraction of the final concentration of sodium mannan phosphate in the skin care composition can be 0.03%, 0.05%, 0.1%, 0.15%, 0.2%, etc.

[0008] In some specific embodiments, the mass fraction of the final concentration of carboxymethyl chitosan in the skin care composition is 0.02% to 0.15%, preferably 0.05% to 0.15%, more preferably 0.1% to 0.15%, and more preferably the mass fraction of the final concentration of carboxymethyl chitosan in the skin care composition is 0.15%. For example, the mass fraction of the final concentration of carboxymethyl chitosan in the skin care composition can be 0.02%, 0.05%, 0.10%, 0.12%, 0.15%, etc.

[0009] In some specific embodiments, the mass fraction of the final concentration of ectoine in the skin care composition is 0.1% to 1%, preferably 0.1% to 0.5%, more preferably 0.1% to 0.2%, and more preferably the concentration of ectoine is 0.2%. For example, it can be 0.1%, 0.2%, 0.5%, 0.8%, 0.9%, 1%, etc.

[0010] Using the composition with the above more preferred concentration, it can achieve the lowest resistivity and the best conductivity, and its temperature rise is the most stable, obtaining the optimal effects of enhancing the skin barrier, improving skin flushing, and improving fine lines.

[0011] In some specific embodiments, the above composition is included in a carrier acceptable in cosmetics and / or skin care products. For example, the carrier can be liposomes, creams, etc.

[0012] In some specific embodiments, the composition may further include the remaining components of skin care products, such as water, moisturizers, surfactants, skin conditioners, skin protectants, emulsifiers, antioxidants, preservatives, chelating agents, thickeners, suspending agents, pH buffers, fragrances, pigments, colorants, film formers, sunscreens, and solvents, etc. The dosage is typically 0.01% to 25%, preferably 0.1% to 15%, and most preferably 1% to 10%.

[0013] In a specific embodiment, the composition further includes water, a moisturizer, an emollient, an emulsifier, a thickener, a pH buffer, a skin conditioner, and a skin protectant.

[0014] In a specific embodiment, the composition further comprises water, glycerol, 1,2-pentanediol, and xanthan gum.

[0015] More specifically, the composition further comprises a humectant: glycerol 1%-10%, 1,2-pentanediol 0.5-4%, an emollient: polydimethylsiloxane 0.5%-5%, squalane 0.5%-5%, an emulsifier: C12-20 acid PEG-8 ester 0.5%-3%, a thickener: sodium acrylate copolymer 0.1%-1%, ammonium polyacryloyldimethyltaurate 0.1%-1%, xanthan gum 0.05-0.5%; a pH buffer: 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid 0.1%-1%, a skin conditioner: caffeine 0.1%-1%, 4-tert-butylcyclohexanol 0.1%-1%, a skin protectant: oligopeptide-1, elastin, Astragalus membranaceus root extract, respectively 0.0001-0.1%.

[0016] In a second aspect, the present invention provides the use of the above-mentioned skin care composition for preparing skin care products.

[0017] More specifically, provided is the use of the above-mentioned skin care composition for preparing skin care products for combined use with beauty instruments.

[0018] The term "beauty instrument" used in the present invention refers to a machine that adjusts and improves the body and face according to the physiological functions of the human body. It acts on the human body through electricity, light, heat, etc.

[0019] In a third aspect, the present invention provides a skin care component, comprising:

[0020] a) A beauty instrument;

[0021] b) The skin care composition as described above.

[0022] Furthermore, the beauty instrument is a beauty instrument based on the action of electric current.

[0023] Furthermore, the beauty instrument is a beauty instrument with a microcurrent mode.

[0024] In a fourth aspect, the present invention provides a method for using a skin care composition, comprising:

[0025] a) Applying the above composition to the skin;

[0026] b) Using a beauty instrument to act on the skin to which the above skin care composition has been applied.

[0027] Furthermore, the beauty instrument is a beauty instrument with a microcurrent mode.

[0028] Furthermore, the stimulation characteristics and duration of the microcurrent are sufficient to deliver the active substance to a biological object, such as the dermis of the skin. Description of the Drawings

[0029] Figure 1 It is a graph of the penetration test results; Detailed Implementation Modes

[0030] The present invention will be specifically described below in combination with specific implementation modes and examples, and the advantages and various effects of the present invention will be presented more clearly therefrom. Those skilled in the art should understand that these specific implementation modes and examples are used to illustrate the present invention, rather than limiting the present invention.

[0031] Example 1. Formulation Used in the Present Invention

[0032] The formulation and concentration (mass) used in the present invention are shown in Table 1. Specifically, at room temperature, glycerol, 1,2-pentanediol, and xanthan gum are mixed evenly, and deionized water is slowly added and stirred evenly to obtain a hydrogel. Sodium mannose phosphate, carboxymethyl chitosan, and ectoine are respectively added to the hydrogel to obtain the sample of Example 1.

[0033] Table 1

[0034] Component Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Water To 100 To 100 To 100 To 100 Glycerol 10 10 10 10 1,2-Pentanediol 3 3 3 3 Xanthan gum 0.25 0.25 0.25 0.25 Sodium mannan phosphate 0.03 0 0.03 0 Carboxymethyl chitosan 0.1 0 0.1 0.1 Ectoine 0.2 0.2 0 0.2

[0035] Example 2. Detection of the Conductivity of the Composition of the Present Invention

[0036] The resistivity and conductivity of the samples of Comparative Examples 1-2 and Example 1 were respectively tested. Volunteers aged 20-50 with sensitive skin (having symptoms such as itching, stinging, and flushing, and a lactic acid score ≥ 3 points), who usually use a lot of cosmetics and have experience using a beauty device, were selected to evaluate the use feelings of different sample groups, and the results are shown in Table 2 below.

[0037] Table 2

[0038]

[0039] It can be seen from the experimental results in Table 2 that after the composition without sodium mannose phosphate and carboxymethyl chitosan is used in combination with a microcurrent beauty device, the skin heating rate is slow, and the volunteers' feedback shows that the temperature peak value is lower than that of Example 1 and Comparative Example 2, and the skin is flushed after use. In Comparative Example 2 with the addition of sodium mannose phosphate and carboxymethyl chitosan, the feeling of skin heating is well improved. In Example 1 with the three substances compounded, the temperature rises gently, the temperature is warm, the skin is not flushed after use, and the compatibility with the device is better.

[0040] Example 3. Penetration Test of the Composition of the Present Invention

[0041] Example 1 was used in combination with a beauty instrument to test the penetration-enhancing ability of Example 1 after being used in combination with the instrument. The test model was a pigskin model, and the fluorescent marker was ectoine. The detection method is shown in Table 3 below.

[0042] Table 3

[0043]

[0044] The experimental results are as Figure 1 shown. It can be seen from Figure 1 that when using the formulation of Example 1 alone, it has good permeability. When Example 1 is used in combination with a smart beauty instrument, the penetration-enhancing effect is very obvious within 0-2h. Within 2h-24h, the total penetration amount is higher than that without using the smart beauty instrument in combination. It can be seen that the composition of the present invention can be well adapted to beauty instruments.

[0045] Example 4. Efficacy test of the composition of the present invention

[0046] Test procedure:

[0047] The following operation procedure was carried out at D0:

[0048] (1) Register the information of the subjects, complete the understanding and signing of the informed consent form, and the experimental technician screens the subjects according to the inclusion and exclusion criteria;

[0049] (2) The subjects clean their faces with the designated cleansing sample and sit quietly in the laboratory at a temperature of 21±1°C and a humidity of 50±10% RH for 30 min;

[0050] (3) The laboratory technician instructs the subjects to use the test sample on the left cheek area according to the sample usage requirements, and the right cheek is not treated;

[0051] (4) Consumers score according to the usage experience, the improvement degree of skin flushing, the resistance of the skin barrier, the improvement of skin fine lines, and the comfort during use.

[0052] (5) The test times are 4h, 8h, 12h, 14d, and 28d.

[0053] The specific results are shown in Table 4 below.

[0054] Table 4

[0055]

[0056]

Claims

1. A skin care composition, comprising: Sodium mannan phosphate, carboxymethyl chitosan, ectoine.

2. The skin care composition according to claim 1, wherein In the skin care composition, the mass ratio of sodium mannan phosphate: carboxymethyl chitosan: ectoine = (3 - 20):(2 - 15):(10 - 100).

3. The skin care composition according to claim 1, characterized in that, The skin care composition further comprises water, a humectant, an emollient, an emulsifier, a thickener, a pH buffer, a skin conditioner, and a skin protectant.

4. The skin care composition according to claim 1, characterized in that, The composition further comprises water, glycerol, 1,2 - pentanediol, and xanthan gum.

5. The skin care composition according to claim 3, characterized in that, The skin care composition further comprises a humectant: glycerol 1% - 10%, 1,2 - pentanediol 0.5 - 4%; an emollient: polydimethylsiloxane 0.5% - 5%, squalane 0.5% - 5%; an emulsifier: C12 - 20 acid PEG - 8 ester 0.5% - 3%; a thickener: sodium acrylate copolymer 0.1% - 1%, ammonium polyacryloyldimethyltaurate 0.1% - 1%, xanthan gum 0.05 - 0.5%; a pH buffer: 2 - [4 - (2 - hydroxyethyl)piperazin - 1 - yl]ethanesulfonic acid 0.1% - 1%; a skin conditioner: caffeine 0.1% - 1%, 4 - tert - butylcyclohexanol 0.1% - 1%; a skin protectant: 0.0001 - 0.1% oligopeptide - 1, 0.0001 - 0.1% elastin, 0.0001 - 0.1% Astragalus membranaceus root extract, respectively 0.0001 - 0.1%.

6. Use of a skin care composition according to any one of claims 1 to 5 for preparing a skin care product.

7. The use according to claim 6, characterized in that, The skin care product is a skin care product for use in combination with a beauty instrument.

8. A skin care assembly, comprising: a) A beauty instrument; b) A skin care composition according to any one of claims 1 to 5.

9. The skin care component according to claim 8, characterized in that, The beauty instrument is a beauty instrument based on the action of an electric current.

10. A method for using a skin care composition, comprising: a) Applying a skin care composition according to any one of claims 1 to 5 to the skin; b) Using a beauty instrument to act on the skin to which the skin care composition has been applied.

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