DE1035855B - Skin and hair care products - Google Patents

Description

Skin and hair care products The use of amino acids, keratin hydrolysates and proteins of other origins for the preparation of cosmetic preparations has been since known for a long time. Their beneficial effect on the condition of the skin and hair is very low when used externally, since the mentioned connections to the Part in water and other solvents only poorly and in cosmetics common lipoids almost not dissolve at all. This also applies to acylated ones Amino acids such as N-acetyl-d, l-methionine, which in combination with an estrogenic Hormone has been used to prevent hair loss.

It has now been found that much better results are obtained if one uses such derivatives of amino acids, which have a better solubility in the raw materials commonly used in cosmetics, e.g. B. fats, oils, waxes, hydrocarbons and alcohols.

These are derivatives of amino acids that result from acylation of the amino group and esterification of the carboxyl group arise.

Basically, the N-acyl amino acid esters are of all amino acids suitable for the care of the skin and hair. Because of their physiological character however, the amino acids are preferred, which are components of natural proteins are. Both the optically active N-acylamino acid esters and their Racemates can be used. The N-acylamino acid esters are still at their N atom Capable of salt formation, and it can also be the corresponding inorganic or organic Salts in which skin and hair care products are used. For acylation of Amino group or groups are mono- or flour-basic carboxylic acids. The carboxyl group or groups are esterified with mono- or polyvalent ones Alcohols.

The N-acylamino acid esters described can be in the form of solutions use in suitable organic solvents or in water; but there are solvent mixtures are also possible. The appropriate organic solvents can also be diluted with water. The N-acylamino acid esters described can but also suitable oils, fats or emulsions can be added or also as Additives to powdery substances are used. The skin and hair care products described can also use active ingredients to strengthen the skin, scalp and hair Contain hair growth, such as B. Vitamins, hormones, antiseptics, plant extracts Due to their favorable solubility properties, the described Incorporate N-acylamino acid esters better into skin and hair care products. The described Skin care products improve the appearance of the skin and make it supple. the Hair care products described strengthen the structure of the hair.

Examples 1. Skin cream 10.00 /, beeswax 50.0 01o paraffin oil 3.0% / 0 lanolin y A 1.0% sorbitan sesquioleate 3.0 0 /, N-acetyl-glycine-benzyl ester 33.0 O / o water qs perfume, preservative, colorant 100.0 O / o The oil phase A and the water phase are each heated separately to about 700 ° C. After everything has clearly dissolved in the oil phase A, the water is slowly added to A while stirring. The mixture is cooled with further stirring.

2. Hair lotion 0.50% d, 1-N-acetyl-methionine-ethyl ester 0.25% 1-N-acetylglutamic acid diethyl ester hydrochloride 0.25%, sodium pantothenate 52.00 0 / o ethyl alcohol (9600ig) 47.00 01o water see q. Perfume, dye 100.00 01o 3. Hair lotion 0.100 /, l-N-Benzoyl-histidine-monoglycerol ester 0.10 0 /, l-N-acetyl-methionine-ethyl ester 0.1001, pilocarpine hydrochloride 0.10 01u resorcinol monoacetate 1.00 01o quinine bark extract 40.00% isopropyl alcohol 58.60% water q. see perfume, dye 100.00 0 /, 4th Hair oil 50.0% olive oil 40.0% paraffin oil 9.001, isopropyl myristate 0.5 01, d, 1-N-salicylyl methionine isopropyl ester 0.5% I-N-acetyl-cysteine-isopropyl ester q. See perfume, preservative, dye lOOp% / o pTENT CLAIMS 1. Skin and hair care products, characterized by a Content of one or more N-acylamino acid esters in optically active form and or or as a racemate.

Claims (1)

2. skin and hair care products according to claim 1, characterized in that that it contains the inorganic or organic salts of the N-acylamino acid esters. 3. skin and hair care products according to claim 1 or 2, characterized in that that there are one or more additives of known skin and hair care products such as Contains vitamins, hormones, antiseptics and plant extracts. Publications considered: "Der Chemiemarkt", No. 7 (April issue 1956), p. 1, a supplement to the journal »Die Chemische Industriei, April issue 1956.