Ingredient

CALCIUM LACTATE

Substance information

"Calcium..." refers to a calcium salt. Lactates are salts or esters of lactic acid (2-hydroxypropanoic acid).


Function(s) of this ingredient in cosmetic products

ASTRINGENT

Contracting and/or tightening the skin

BUFFERING

Controls the pH of cosmetic products

KERATOLYTIC

Helps to remove the layers of dead skin cells from the skin surface


Origin

biotechnology/synthetic


Background information on use in cosmetics

Lactic acid is in chemical terms a hydroxy carbonic acid; an alkane acid which has both a carboxy group and a hydroxy group. Lactic acid is a colourless to slightly yellowish syrup-like liquid which can be easily mixed with alcohol and water. It is an endogenous substance which occurs as L-(+) lactic acid in sweat, blood, muscle serum, kidney, bile and in saliva. It is an alpha-hydroxy acid which has hygroscopic properties. The salts and esters of the lactic acid are referred to as lactates. In the form of lactate, lactic acid is an important intermediate product in the metabolism, for instance, as a product of the degradation of sugars by lactic acid fermentation. Lactic acid occurs, amongst others, in the so-called hydrolipidic film – the acid protection mantle of the skin. It contributes towards keeping the pH value of the skin in balance. Apart from other substances like proteins, sugar and urea, lactic acid ensures, on the basis of its hygroscopic properties, a good moisture penetration of the skin. In skincare products such as skin creams lactic acid (INCI: LACTIC ACID; salts: LACTATE) are frequently used for the care of dry skin areas. In combination with other substances, lactic acid also regulates the pH value of the caring product. In this way it is ensured that the protective acid mantle of the skin is not impaired at an application of the product. Because of its keratolytic properties (resolving the keratinisation), lactic acid is, moreover, used in care products for the skin and stratum corneum refinement. In liquid soaps lactic acid is likewise used, since it has an antibacterial effect.


Belongs to the following substance groups

Understanding your cosmetics

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