research Dermatological Drugs and Cosmetics: Allergenic and Adverse Effects January 1987 in “Side effects of drugs annual” Some cosmetics and dermatological drugs can cause allergic reactions and side effects, like skin irritation and systemic issues.
research Sox2 in the Dermal Papilla Regulates Hair Follicle Pigmentation 9 citations, July 2022 in “Cell reports” Sox2 controls hair color by affecting pigment production in hair follicles.