LT6974B - Cleanser for skin care and preparation method thereof - Google Patents

Abstract

The invention relates to the cosmetics industry, in particular for an active cleanser for deep pore cleansing. The main active ingredients in the cleanser are glycolic acid, salicylic acid and gluconolactone. The product contains from 82,96% to 85,88% by weight of deionized water, 5% by weight of glycerol, from 3.6% to 5% by weight of glycolic acid, from 1.0% to 1.5% by weight of salicylic acid, 1.5% by weight of sodium hydroxide, from 1.0% to 1.5% by weight of disodium cocoamphodiacetate, 1.0% by weight % gluconolactone, from 0.7% to 0.9% by weight of xanthan gum, from 0.2% to 0.4% by weight of maltol, from 0.1% to 0.2% by weight of sodium chloride and from 0.02% to 0.04% by weight of polyquaternium-80. The cleanser is intended for daily skin care; its purpose is to remove dirt on the skin surface, cosmetic residues, dead skin cells, clean pores, positively affect the acne-prone skin condition, promote the regeneration of the upper layer of the skin. Due to the selected optimal acid concentration, during use, the cleanser creates an unfavorable medium for the growth of bacteria on the skin surface, but at the same time does not irritate the facial skin, does not cause redness.

Description

FIELD OF THE INVENTION

The invention is intended for the cosmetic industry, specifically for a deep pore-cleansing active cleanser, the main active components of which are glycolic acid, salicylic acid and gluconolactone. The cleanser is intended for daily skin care, its purpose is to clean the dirt on the surface of the skin, cosmetic residues, dead skin cells, clean the pores, have a positive effect on the condition of the skin suffering from acne, and promote the regeneration of the upper layer of the skin. Due to the selected optimal concentration of acids, during use, the cleanser creates an unfavorable environment for the reproduction of bacteria on the surface of the skin, but at the same time, it does not irritate the skin of the face and does not cause redness.

STATE OF THE ART

Acne is undoubtedly the most common skin disease worldwide. It is estimated that about 85% of the population between the ages of 11 and 30 suffer from acne. The exact cause of acne is unknown due to the interaction of many factors, but among them it is worth mentioning the genetic factor, which together with endocrine, inflammatory and infectious factors provokes acne. Acne is particularly prominent during adolescence, but it can occur in people of all ages. The face, shoulders, back, neck, chest, upper arms are the most common places where acne occurs.

Many cosmetic products have been invented and developed for skin care and acne prevention. Russian patent no. RU2678307 describes an active anti-acne cosmetic product containing glycerin, salicylic acid, glycolic acid, lactic acid, papain, citric acid, hyaluronic acid, retinol, allantoin, niacinamide, panthenol, bisabolol to complement the range of skin care products.

European patent no. EP3367995 describes a skin care composition comprising vitamin C and gluconolactone, wherein 95% by weight of the composition is water. Vitamin C and gluconolactone are derivatives widely used in cosmetics. Gluconolactone is an acidic compound that, being in the composition, slows down the aging of the skin, for example, reduces wrinkles. Gluconolactone has a larger molecular structure than many alpha- and/or beta-hydroxycarbolic acids used in skin care formulations. Gluconolactone is believed to be optimally effective at lower pH values.

BRIEF DESCRIPTION OF THE ESSENCE OF THE INVENTION

The present invention discloses an alternative skin care product viz. i.e. deep pore-cleansing active cleanser that adapts to individual skin needs, complexly including the main active components: glycolic acid, salicylic acid and gluconolactone.

Glycolic acid is a low-molecular organic acid classified as alpha hydroxy acids (AHA) because it has a functional hydroxy group at the alpha carbon atom. This acid has a keratolytic effect, exfoliates the skin, promotes skin renewal, suppresses acne, has a positive effect on acne-damaged skin, reduces skin pigmentation, and helps fight acne.

Salicylic acid is an organic acid classified as a beta hydroxy acid (BHA) because the functional hydroxy group in the structure of this acid is positioned at the beta carbon atom. According to scientific sources, it has anti-inflammatory and antibacterial properties. According to scientific sources, salicylic acid exfoliates the skin, promotes the removal of dead skin cells, and effectively cleans skin pores. Can promote cell regeneration. Regulates sebum secretion. Effective in fighting acne, has a positive effect on acne-prone skin.

Gluconolactone is a polyhydroxy acid (PHA) whose molecule contains not one but several functional carboxylic acid groups. Gluconolactone moisturizes and strengthens the skin. The effect of gluconolactone is similar to AHA and BHA acids, only milder. Penetrates shallowly into the skin due to the larger molecular size. It is because of the lower penetration that this PHA has a gentle effect on the skin and is suitable even for owners of sensitive skin.

A cosmetic composition that includes all three main active components is currently unknown. Due to the selected optimal concentration of acids, during use, the cleanser creates an unfavorable environment for the reproduction of bacteria on the surface of the skin, effectively cleans pores, removes dead skin cells, helps control acne, promotes the renewal of the superficial skin layer, and has a positive effect on skin suffering from acne.

The optimal pH of the cleanser creates an unfavorable environment for the growth of bacteria on the surface of the skin, and the balanced concentration of glycolic acid, salicylic acid and gluconolactone does not irritate the facial skin and does not cause redness.

DETAILED DESCRIPTION OF THE ESSENCE OF THE INVENTION

The main active ingredients in the cleanser are glycolic acid, salicylic acid and gluconolactone. The product contains 82.96 - 85.88 wt% water, 5 wt% glycerin, 3.6 - 5.0 wt% glycolic acid, 1.0-1.5 wt% salicylic acid, 1.5 wt% sodium hydroxide , 1.0 - 1.5% by weight disodium cocoamphodiacetate, 1.0% by weight gluconolactone, 0.7 - 0.9% by weight xanthan gum, 0.2 - 0.4% by weight maltol, 0.1 - 0.2 wt % sodium chloride and 0.02 - 0.04 wt % polyquaternium-80. The detailed composition of the detergent and the functions of its components are presented in Table 1.

table

A sequence number. INCI name of the raw material Raw material content (% by weight) Raw material function 1 Deionized water 82.96 - 85.88 Solvent 2 Glycerin 5.0 Moisturizes Protects skin Regulates thickness 3 Glycolic acid 3.6-5.0 Active component 4 Salicylic acid 1-1.5 Active component 5 Sodium hydroxide 1.5 pH control 6 Disodium coamf od i acetate 1.0-1.5 Surfactant, provides cleaning properties to the product 7 Sodium chloride 0.1 -0.2 Thickness adjustment 8 Gluconolactone 1.0 Active component 9 Xanthan gum 0.7-0.9 Thickness regulation Emulsion stabilization

10 Polyquaternis-80 0.02 - 0.04 Cleaner Preservation 11 Maltol 0.2 - 0.4 Fragrance Canning

The manufacturing procedure for the deep pore cleansing cleanser of the present invention is as follows:

1) 75% of deionized water (from the total amount of water provided for the production process) and the entire amount of maltol and polyquaternium 80 are poured into the homogenizer. Stirring is turned on, the mixture is heated to 30 °C while stirring and stirred for about 20 minutes until the raw materials dissolve;

2) salicylic acid is added and stirred for 20 minutes, maintaining a temperature of 30 °C;

3) glycerin is poured into a separate container and then xanthan gum is added; homogenized to a homogeneous mass; this gives solution B;

4) solution B is poured into the homogenizer and stirred intensively for 10 minutes; after that, the mixing speed is reduced to medium and the mixing is continued until a single homogeneous mass is obtained;

5) half the amount of glycolic acid is poured into the homogenizer and mixed for another 20 minutes;

6) sodium hydroxide dissolved in previously deionized water (about 50.0% of the residue) is poured into the homogenizer; stirring is continued for 20 minutes;

7) the rest of the glycolic acid is poured into the homogenizer and mixed for another 20 minutes;

8) gluconolactone dissolved in the remaining deionized water is poured into the homogenizer; stirring is continued for 20 minutes;

9) disodium cocoamphodiacetate is poured into the homogenizer; stirring is continued for 20 minutes;

10) pH, thickness, color, smell of the mixture are checked; a sample is taken for research;

11) the produced product is bottled.

In the production process, water purified by reverse osmosis (RO) can be used instead of deionized water.

The consistency of the manufactured product is gray-yellowish gray, viscous liquid. Smell - slightly sweet, can be slightly sour. Product pH - 3.5-5.5.

According to yet another detergent production method, other bases (acid salts or metal hydroxides), such as trisodium phosphate, potassium hydroxide, can be used instead of sodium chloride. Ethyl maltol can be used instead of maltol.

Due to the selected optimal concentration of acids, the cleanser of this invention creates an unfavorable environment for the reproduction of bacteria on the surface of the skin during use, without irritating the skin of the face and without causing redness. It is practically certain that the cleanser effectively cleans pores, removes dead skin cells, brightens the skin, lightens scars and pigment spots, stimulates collagen synthesis in the skin, helps control acne-prone skin, and promotes the renewal of the superficial skin layer.

The product can be used both as a cleanser and as a mask. When used as a cleanser, after removing make-up, apply the cleanser on dry or slightly damp skin, massaging in circular motions for 1 minute. Then rinse thoroughly with cool water. When used as a mask, apply a thin layer of the product to dry facial skin for a week, leave for 2 minutes, then rinse thoroughly with cool water.

Claims (8)

A cleanser for skin care, containing active components - glycolic acid and salicylic acid, differs in that it contains additional gluconolactone, and the composition of the cleanser (% by mass) is as follows: - deionized water - 82.96 -85.88 - glycerin - 5.0 ; - glycolic acid - 3.6 - 5.0; - salicylic acid - 1 - 1.5; - sodium hydroxide - 1.5; - disodium cocoamphodiacetate - 1.0 - 1.5; - sodium chloride - 0.1 - 0.2; - gluconolactone - 1.0; - xanthan gum - 0.7 - 0.9; - polyquaternium-80 -0.02 - 0.04; - maltol - 0.2 - 0.4. Detergent according to claim 1, characterized in that instead of sodium hydroxide, it contains other acid salts or metal hydroxides, such as ternary phosphate or potassium hydroxide. Detergent according to claim 1, but differs in that it contains ethylmaltol instead of maltol. The detergent according to claim 1, but differs in that instead of deionized water, it contains water purified by the reverse osmosis (RO) method. A detergent production method, which includes placing the ingredients in a homogenizer and mixing them, in which the sequence of the detergent production process is as follows: a) 75% of deionized water (from the total amount of water intended for production) and the entire amount of maltol and polyquaternary-80 are poured into the homogenizer, mixing is turned on , the mixture is heated to 30 °C with stirring and stirred for about 20 minutes until the raw materials dissolve; b) add salicylic acid and stir for 20 minutes, maintaining the temperature at 30 °C. c) glycerin is poured into a separate container, after which xanthan gum is added, everything is homogenized to a homogeneous mass, obtaining solution B; d) solution B is poured into the homogenizer, mixed intensively for 10 minutes, after which the mixing speed is reduced to medium and mixing is continued until a homogeneous homogeneous mass is obtained; e) half of the amount of glycolic acid is poured into the homogenizer and mixed for another 20 minutes; f) sodium hydroxide dissolved in previously deionized water (about 50.0% of the residue) is poured into the homogenizer and everything is mixed for 20 minutes; g) the rest of the glycolic acid is poured into the homogenizer and mixed for another 20 minutes; h) gluconolactone dissolved in the remaining deionized water is poured into the homogenizer and everything is mixed for another 20 minutes; i) disodium cocoamphodiacetate is poured into the homogenizer and everything is mixed for 20 minutes; j) a sample is taken for testing and the pH, thickness, color, smell of the mixture is checked; k) the manufactured product is bottled. The method according to claim 5, in which the pH of the detergent is maintained between 3.5 and 5.5 using sodium hydroxide or other bases - acid salts or metal hydroxides, for example ternary phosphate or potassium hydroxide. A method according to claim 5, wherein the mixture is homogenized until a viscous liquid consistency is obtained. The cleanser according to points 1-4, produced by the method according to points 5-7, is intended to be used for active skin care, including acne prevention.