Acitretin is a second-generation retinoid derived from vitamin A, chemically known as 9-cis-retinoic acid.Acitretin works by regulating the growth and differentiation of skin cells, reducing inflammation, and normalizing keratinization processes. It is especially effective in controlling the rapid turnover of skin cells seen in psoriasis. Buy high quality Acitretin from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Acitretin.