June 2023 in “Journal of Pharmaceutical and Health Research” Caffeine hair tonic with 0.001% concentration was more effective in promoting hair growth on guinea pigs.
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June 2021 in “Trends in Food Science and Technology” Western diet may cause male pattern baldness; low glycemic diet with magnesium could help.
January 2022 in “UiTM Institutional Repositories (Universiti Teknologi MARA)” Coffee can help improve hair growth and appearance.
September 2014 in “Hair transplant forum international” Caffeine, niacinamide, and panthenol may improve hair growth, fullness, and healing when applied to the scalp.
August 2021 in “Journal of Fundamental and Applied Pharmaceutical Science” Black tea extract at 5% concentration promotes the most hair growth.