October 2022 in “Journal of the American Academy of Dermatology” "Clean" shampoos use fewer allergenic preservatives than traditional ones but still contain fragrances, and their actual risk of causing skin reactions is unclear.
November 2024 in “Dermatitis” Men's personal care products often cause allergic skin reactions.
May 2023 in “Australasian Journal of Dermatology” Various substances, including cosmetic sponges, vein glue, chai tea, skincare products, and medicaments, can cause allergic contact dermatitis, and healthcare workers often react to N95 masks.
8 citations,
May 2017 in “Current traditional medicine” Stinging nettle has compounds that help with joint pain, arthritis, and prostate issues.
May 2023 in “Jurnal farmasi sains dan praktis” The hair tonic with cinnamon oil and coconut oil was stable and caused very mild irritation.
15 citations,
July 1997 in “Clinics in Dermatology” Traditional Chinese medications can cause skin reactions, and better testing and reporting are needed to identify allergens.