Acids for the face used in cosmetology include exfoliation compoundsthat weaken the bonds between skin cells, leading to exfoliationits top layers. There are 3 groups of acids:
AHA - including glycolic, mandelic, lactic, malic, pyruvic and tartaric acids. They have the strongest effect, and due to the fact that they poorly penetrate the sebum layer, they are recommended for combination, dry and mature skin.
BHA - they include only salicylic acid, ideal for acne and oily skin.
PHA - i.e. gluconolactone and lactobionic acid with the mildest effect, recommended for sensitive and vascular skin.
The effects you will get by using acids on the face depend on their selection for the type of skin and concentration. The most frequently desired effects are: smoothing out fine lines; brightening; narrowing of pores and smoothing the skin; reduction of blemishes
and blackheads; better skin hydration; restoring a healthy color to the skin.