Accutane (isotretinoin) is a retinoid drug that inhibits sebaceous gland function and keratinization. Retinoids are related to vitamin A and help control epithelial cell growth, cell reproduction, and cell proliferation. Most commonly, Accutane is used for severe acne vulgaris and cystic acne. It works primarily by inhibiting sebum (a waxy, oily substance) production by reducing in the size of sebaceous glands. Accutane (isotretinoin) is available generically and is distribut