The correct name of retinoic acid is retinoic acid and retinoic acid is a medicine used to treat skin diseases such as acne vulgaris, flat warts, and psoriasis. Retinoic acid belongs to the cell-induced differentiation drugs, at present, it can be used for the treatment of acne vulgaris, flat warts, psoriasis, mucous membrane leukoplakia, erythema furfurum, as well as follicular keratosis and other skin diseases. The majority of patients with standardized use of the drug have better outcomes. Adverse reactions to retinoic acid include edema, itchy skin, headache, tinnitus, and muscle pain. For people who are allergic to retinoic acid, pregnant women, lactating women and other people, the use of this drug should be contraindicated, so as not to damage the health of the body, affect the development of the fetus and so on. Patients are advised to seek medical advice if they experience any discomfort during the use of Vinpocetine.