23 citations,
January 2016 in “Contact Dermatitis” Allergies to some essential oils may not be found with standard fragrance tests.
183 citations,
January 2018 in “Cosmetics” Essential oils in cosmetics can offer benefits but may cause allergies and should be used carefully.
5 citations,
July 2006 in “Contact dermatitis” Ammonium bisulfite in hair bleach can cause facial eczema.
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.
434 citations,
October 2003 in “PTR. Phytotherapy research/Phytotherapy research” Natural products in cosmetics are beneficial for skin and hair care with low toxicity.