1 citations
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July 2023 in “Cosmetics” This study found that a novel shampoo formulation effectively delivers caffeine to hair follicles, with 8–9% of absorbed caffeine reaching the follicles, suggesting it may support hair retention by enhancing antioxidant activity.
This study conducted a pre-formulation evaluation of a caffeine shampoo for androgenic alopecia treatment, finding that the formulation remains stable under various conditions, suggesting its viability for compounding.
93 citations
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January 2007 in “Skin Pharmacology and Physiology” In this study, caffeine applied in a shampoo penetrated hair follicles faster and more effectively than through the skin surface within the first 20 minutes.
5 citations
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October 2020 in “Giornale italiano di dermatologia e venereologia” This study found that a phyto-caffeine-containing shampoo was more effective than a control shampoo in reducing hair loss and improving hair strength in women with androgenetic alopecia over a 6-month period.
May 2024 in “Journal of cosmetic dermatology” This study found that while caffeine and adenosine can inhibit hair loss and stimulate hair growth, more research is needed to fully understand the efficacy of shampoo formulations containing specific proportions of these compounds for hair loss treatment and prevention.