December 2020 in “Journal of Cosmetic Science” The caffeine content in anticellulite gels is 0.7-1.7% and in hair-care products is about 1.0%.
The optimal concentration for caffeine release in gel form is 0.2% caffeine and 2.3% chitosan.
Nanoparticles with caffeine can be used for slow, continuous hair growth stimulation.
May 2025 in “International Journal of Innovative Technologies in Social Science” Caffeine causes sleep problems in many medical students.
Caffeine can potentially treat common hair loss by counteracting hair follicle shrinkage caused by hormones.
The caffeine shampoo for hair loss is stable and suitable for use.
5 citations
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October 2020 in “Giornale italiano di dermatologia e venereologia” The phyto-caffeine shampoo reduced hair loss and improved hair strength in women with hair thinning.
55 citations
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March 2005 in “Neuropharmacology” A neurosteroid can reduce caffeine-induced anxiety in rats.
94 citations
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May 2011 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.
61 citations
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January 2018 in “Cosmetics” Coffee silverskin may be a beneficial and safe ingredient for cosmetics, offering hydration, firmness, and potential hair growth benefits.
42 citations
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July 2014 in “European journal of pharmaceutics and biopharmaceutics” Caffeine nanocrystals for skin products stay stable with the right stabilizer, but grow in size at higher temperatures.
9 citations
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July 2014 in “PubMed” The review doesn't clearly say if biotin, caffeine, melatonin, a marine extract, and zinc are effective for treating hair loss.
2 citations
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January 2022 in “Dermatologic Therapy” Natural products like saw palmetto, caffeine, melatonin, marine extracts, rosemary oil, procyanidin, pumpkin seed oil, and cannabidiol oil could potentially treat male hair loss.
2 citations
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January 2016 Optimized formulations with specific ingredients can significantly improve skin delivery of topical drugs.
2 citations
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January 2014 Improved methods create smaller, more effective gelatin nanoparticles for skin delivery, and new caffeine nanocrystals enhance absorption and effectiveness.
1 citations
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July 2021 in “Chemical & pharmaceutical bulletin/Chemical and pharmaceutical bulletin” Rubbing skin increases absorption of water-soluble drugs from lotions and creams, but not oil-soluble drugs.
1 citations
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January 2019 in “Advances in Medical Sciences” The combination of azelaic acid, minoxidil, and caffeine significantly increased the survival of skin flaps by affecting certain body channels and nitric oxide levels.
1 citations
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March 2018 in “Dermatologie pro praxi” Most over-the-counter hair loss treatments lack strong evidence of effectiveness, except for minoxidil, which works but stops working if you stop using it.
1 citations
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February 2018 in “Psicologia e Saúde em Debate” The caffeine shampoo formulation is stable and suitable for treating hair loss.
1 citations
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February 2025 in “Supportive Care in Cancer” Safe treatments like minoxidil and spironolactone can help manage hair loss in breast cancer patients without increasing cancer risk.
May 2026 in “Revista Iluminart” Coffee bomb shampoo has more caffeine after 7 days than commercial products.
Most ingredients in hair loss shampoos lack strong evidence of effectiveness.
October 2025 in “Food science and nutrition” Coffee has evolved into a cultural symbol influenced by science, health, and global trends.
December 2024 in “NATIONS UNIVERSITY INTERNATIONAL JOURNAL OF MULTI-DISCIPLINARY STUDIES” Natural substances like caffeine and rosemary oil may help hair growth, but more research is needed.
January 2024 in “Estetologia Medyczna i Kosmetologia” Most hair loss shampoos have unproven active ingredients.
Arabica coffee pulp extract may help prevent hair loss and promote hair growth.
November 2023 in “Hair transplant forum international” Caffeine can stimulate hair growth, but the best dose and frequency for hair loss treatment are still unknown.
November 2022 in “Journal of Investigative Dermatology” The document concludes that a new method has been developed to test anti-aging substances on human skin, showing that these substances can reduce skin aging signs.
January 2022 in “UiTM Institutional Repositories (Universiti Teknologi MARA)” Coffee can help improve hair growth and appearance.