January 2004 in “Side effects of drugs annual” Certain skin drugs and topical agents, including some natural extracts and fragrances, can cause allergic reactions. Some hair dyes and extensions, as well as minoxidil, a hair growth treatment, can also cause allergies. Botulinum toxin A can effectively reduce sweat but may have temporary side effects.
23 citations
,
January 2016 in “Contact Dermatitis” Allergies to some essential oils may not be found with standard fragrance tests.
9 citations
,
January 1966 in “Economic botany” Plant-based ingredients in hair care are being replaced by synthetic alternatives.
October 2001 in “WORLD SCIENTIFIC eBooks” Many substances, including chemicals and metals, can cause skin reactions; careful handling and identification of allergens are crucial to prevent dermatitis.
January 2024 in “Deleted Journal” Essential oils may help hair health but lack strong scientific proof and can cause allergic reactions.