Ajwain seed extract improved skin healing and hair growth in a mouse skin irritation model.
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.
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March 1989 in “British journal of dermatology/British journal of dermatology, Supplement” DPCP is more effective than tretinoin gel for treating severe alopecia.
May 2023 in “Jurnal farmasi sains dan praktis” The hair tonic with cinnamon oil and coconut oil was stable and caused very mild irritation.
September 2024 in “Journal of the American Academy of Dermatology” Generic topical and transdermal systems usually cause minimal irritation or sensitization.