Tretinoin

Tretinoin, sold under brand names like Retin-A, is a topical retinoid medication available as a prescription gel (0.01% strength). It's used to treat acne and improve...维A酸（Tretinoin）以Retin-A等商品名上市，属于外用类视黄醇处方药，现有0.01%浓度的凝胶剂型，可用于治疗痤疮并改善……