Salicylic acid, molecular formula C7H6O3, is an extract of willow bark Slightly soluble in cold water, soluble in hot water, ethanol, ether, soluble in hot benzene. 1 g of this product can be dissolved in 460 ml of water, 15 ml of hot water, 2.7 ml of alcohol, 3 ml of ether, 135 ml of benzene, 52 ml of pineSalicylic acid can remove excess cutin layer, at the same time promote epidermal cells quickly update;If the epidermal cells are young, fresh and full of vigor and vitality, nature can make the skin recover smooth and delicate.

Salicylic acid is fat-soluble, can follow the secretion of oils and fats of sebaceous glands infiltrate deep pore, is advantageous to the dissolved pore old accumulation of cuticle, improve pore blocking, thus blocking the formation of acne and reduce the enlarged pores.