DPCP (diphencyprone)

Diphencyprone (DPCP) is a topical medication used to treat localized alopecia (hair loss) by stimulating the immune system to re-engage with hair follicles. Applied to the scalp in small amounts, it causes a mild allergic reaction that redirects the immune response, potentially reversing hair loss in conditions like alopecia areata. The treatment begins with a sensitization phase, followed by regular applications to maintain the effect. DPCP is usually used under medical supervision due to the risk of skin irritation and allergic reactions, and its effectiveness can vary among individuals.