November 1, 2013 Dr. Lawrence Jaeger of New York is an expert in the diagnosis and treatment of skin conditions and is board certified in dermatology and dermatologic surgery. Tazorac is a gel used in the treatment of Acne and Psoriasis. It is a retinoid product that is effective in Acne treatment and Psoriasis treatment by affecting the growth of skin cells. By reducing inflammation and keeping skin pores clean, Tazorac treatment is proven to be an effective treatment for Acne patients and Psoriasis patients. A significant improvment can be seen anywhere from 1 week to 4 weeks after treatment is initiated.