TLDR Hair product allergies are common, especially to hair dyes, and hairdressers are at higher risk.
Allergy to hair products is increasingly common, manifesting as either delayed-type contact dermatitis or immediate-type hypersensitivity reactions. Common allergens include hair dyes, fragrances, persulfate salts, ammonium thioglycolate, coconut fatty acid derivatives, and acrylates, with hair dye being the most prevalent. The review discusses testing for hair dye allergies and suggests alternative dyes. Allergies to topical scalp medications, particularly minoxidil, are also noted due to its widespread use for hair growth. Hairdressers are at higher risk due to prolonged exposure, necessitating specific protective measures.
10 citations,
December 2020 in “Dermatitis” Ethnic hair products contain different allergens than nonethnic ones, with fragrance being the most common in ethnic products.
8 citations,
April 2020 in “Journal of The American Academy of Dermatology” Oral minoxidil is a reasonably safe alternative for patients allergic to the topical form.
43 citations,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.
16 citations,
January 2007 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” A man had an allergic reaction to minoxidil, which stopped after he discontinued use and started corticosteroids.
123 citations,
February 2002 in “Journal of The American Academy of Dermatology” Minoxidil can cause skin allergy; use alternative solvents or treatments if allergic.
1 citations,
July 2016 in “Cosmetics” Black henna tattoos can cause severe allergies to hair and textile dyes, and there's a need for greater public awareness and regulation.
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 2017 in “Springer eBooks” The document explains various skin conditions and their treatments.
8 citations,
September 2004 in “Contact dermatitis” Avoiding dyed wigs and clothing improved severe allergic reactions in a woman treated with diphencyprone.
The article suggests that patients with Frontal Fibrosing Alopecia may have more contact allergies, but it doesn't prove that allergies cause the condition.