What Is Salicylic Acid?

Salicylic acid is a keratolytic compound in the same class of medications as salicylates, also known as acetylsalicylic acid (Aspirin). Salicylic acid works by altering the expression of the COX2 gene to reduce the production of prostaglandins that promote inflammatory processes. The formation of this type of prostaglandin is stopped by the competitive salicylate that disrupts its formation process. Salicylic acid works as an antirheumatic in the body. Antirheumatics promote nonsteroidal anti-inflammatory actions to decrease inflammation. Salicylic acid is most often used in products made to heal the skin, as it is an exfoliant and allows the cells of the epidermis to slough off easier. This mechanism stops pores from becoming clogged up by cellular debris and provides an ample opportunity for new cell growth. Salicylic acid is used for conditions involving the overgrowth of skin cells like psoriasis, and problems evolving from obstructed skin pores like acne and blemishes.