Tretinoin (Retin-A) is a retinoic acid in pharmaceutical form. Tretinoin is used to treat acne. Due to its active ingredients, Tretinoin can lessen the number and severity of acne pimples. It also promotes quick healing of the blemishes. Tretinoin, under the direction of a doctor or pharmacist, may be used as a hair loss treatment. Tretinoin is an ingredient in many commercial products that are promoted for wrinkle removal and slowing the aging of the skin. It is also used to lessen the appearance of stretch marks.
Tretinoin works by speeding up the growth of skin cells and increasing the production of collagen.