September 2017 in “Pediatric Dermatology” The letter agrees that adults can get contact alopecia, which improves with allergen avoidance, and stresses early diagnosis to prevent permanent hair loss.
November 2013 in “Annales de Dermatologie et de Vénéréologie” Cinnamon essential oil can cause severe or unusual skin reactions, with cinnamaldehyde being the main allergen.
January 2010 in “Actas Dermo-Sifiliográficas” A woman was allergic to quinine in her anti-hair loss lotion.
August 2007 in “Contact Dermatitis” A woman had an allergic skin reaction to a hair loss treatment containing canrenone.
A patient experienced intense hair loss due to telogen effluvium after scalp contact dermatitis, but hair regrew completely within two months without further treatment.
207 citations
,
September 1973 in “Entomologia Experimentalis et Applicata” B-type hairs on female butterfly legs help them choose where to lay eggs.
123 citations
,
February 2002 in “Journal of The American Academy of Dermatology” Minoxidil can cause skin allergy; use alternative solvents or treatments if allergic.
84 citations
,
October 2007 in “The Journal of Immunology” Myeloid-derived suppressor cells help control autoimmune cells and promote hair regrowth in alopecia areata.
66 citations
,
August 1990 in “Journal of Investigative Dermatology” Epithelial cell growth in rat hair follicles needs contact with mesenchymal cells through the extracellular matrix.
60 citations
,
September 2001 in “British journal of dermatology/British journal of dermatology, Supplement” Topical contact sensitizers can treat certain skin conditions by changing the immune response.
36 citations
,
March 1989 in “British journal of dermatology/British journal of dermatology, Supplement” DPCP is more effective than tretinoin gel for treating severe alopecia.
25 citations
,
June 1990 in “Journal of Pharmaceutical Sciences” Longer contact time increases minoxidil absorption, but doesn't affect metabolism.
23 citations
,
July 2008 in “British journal of dermatology/British journal of dermatology, Supplement” Topical contact sensitizers can treat certain skin conditions but are rarely used in the U.K.
13 citations
,
December 1983 in “Canadian journal of zoology” Heterotypic cell contacts likely help hair matrix cells differentiate during mouse hair follicle development.
11 citations
,
July 2010 in “Dermatitis” Patch testing helps find allergens in minoxidil treatments, but doesn't ensure alternatives will be tolerated.
9 citations
,
July 2022 in “Journal of Cosmetic Dermatology” The ammonia-free hair dye is safe and improves hair shine, color, moisture, porosity, and combability.
9 citations
,
January 2014 in “World journal of clinical cases” Neomycin is a common cause of follicular contact dermatitis, which is treated by avoiding the allergen and using creams.
7 citations
,
January 2021 in “Cureus” A woman had an allergic skin reaction to a hair loss treatment containing minoxidil and should not use it.
7 citations
,
January 2009 in “International Journal of Trichology” Dermoscopy can't help doctors identify scalp irritation caused by topical minoxidil.
6 citations
,
January 2016 in “Indian Journal of Dermatology Venereology and Leprology” Most hair dyes can cause allergic reactions, so test before use.
6 citations
,
July 2015 in “Australasian Journal of Dermatology” A man developed an allergic skin reaction after using brimonidine for rosacea.
5 citations
,
July 2024 in “International Journal of Women’s Dermatology” Scalp allergic reactions are often missed, needing specific tests and avoiding certain hair products for proper treatment.
5 citations
,
July 2022 in “PubMed” Hair dyes, shampoos, and conditioners often cause scalp allergies due to common allergens like p-phenylenediamine and nickel.
4 citations
,
January 1989 Allergic reactions to minoxidil may be due to the propylene glycol it is mixed with, not the minoxidil itself.
1 citations
,
January 1997 in “Skin research” Hinokitiol and pantothenylethylether in hair products can cause strong allergic reactions.
February 2026 in “Indian Journal of Dermatology” Adults are more reactive to allergens than older adults, who are more sensitive to medication-related allergens.
January 2025 in “Global Journal of Medical Therapeutics” Minoxidil can cause allergic skin reactions, especially in those with underlying health issues.
November 2024 in “Dermatitis” Men's personal care products often cause allergic skin reactions.
September 2024 in “Journal of the American Academy of Dermatology” ChatGPT-4 can help with allergic contact dermatitis but shouldn't replace expert doctors.
July 2024 in “Journal of Investigative Dermatology” Allergic contact dermatitis may promote hair growth by activating hair follicle stem cells.