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.
November 2025 in “Cosmetics” This study found that of the many ingredients advertised in shampoos as effective against hair loss, only caffeine, adenosine, placental proteins, and melatonin have limited clinical evidence supporting their efficacy, with most claimed active ingredients lacking any trial-based validation.
This study found that while many shampoo ingredients are marketed as effective against hair loss, only caffeine, adenosine, placental proteins, and melatonin have moderate clinical evidence for efficacy, and a majority of other claimed active ingredients lack clinical trial verification.
August 2025 in “Drug Design Development and Therapy” This review article examines current drugs for androgenetic alopecia, focusing on their mechanisms and clinical efficacy, noting that while finasteride and minoxidil are commonly approved treatments, new drugs targeting different pathogenic pathways have emerged, offering a broader understanding and reference for AGA treatment options.
3 citations
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August 2022 in “Molecules/Molecules online/Molecules annual” This study found that microbial adenosine and biotin treatments derived from Staphylococcus epidermidis Cicaria culture may help inhibit hair loss by maintaining the hair's growth phase.
May 2025 in “International Journal of Cosmetic Science” In this study, researchers found that a shampoo containing caffeine and adenosine significantly altered the scalp microbiome and lipidome in subjects with hair loss over 12 weeks, which may suggest a role for these compounds in enhancing anti-hair loss processes.
July 2025 in “Biomolecules” This systematic review found that topical adenosine may increase hair thickness and density while reducing hair loss, but the strength of evidence is low due to issues with trial design and sample size.
8 citations
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January 2020 in “Skin Pharmacology and Physiology” This article discusses the potential for topical caffeine as a natural alternative for treating androgenetic alopecia due to its ability to penetrate skin, but it reports no new clinical findings.
5 citations
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January 2019 in “Clinical Drug Investigation” This study found that certain off-label topical therapies, including prostaglandin analogs and polyphenols, improved hair restoration in men with androgenetic alopecia over placebo in the short term, though long-term effects are unknown.
1 citations
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March 2025 in “Biomedical Journal of Scientific & Technical Research” This publication overview describes the Biomedical Journal of Scientific & Technical Research's rigorous peer review process and their focus on genetic, biomedical, and technical knowledge research within an open access format, but does not report specific study results.
1 citations
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January 2017 in “Elsevier eBooks” This article reviews various hair growth and hair loss treatments, noting limited new developments since FDA-approved drugs but highlights recent cosmetic surgery and potential cell-based therapies; it reports no original findings.
July 2026 in “Functional Foods in Health and Disease” In this study, oral administration of strawberry guava extract promoted hair growth in both mice and humans, with active components like adenosine, fructose, digalactosyldiacylglycerol, and pedunculagin contributing by enhancing skin blood flow and activating dermal papilla cells.
July 2024 in “Forum Dermatologicum” This review evaluates various topical treatments for androgenetic alopecia but does not provide new clinical findings, emphasizing the need for selecting therapies with limited systemic side effects.
November 2023 in “Dermatologic therapy” The scalp serum reduced scalp discomfort and symptoms without affecting skin moisture loss.
Female pattern hair loss, common in women, can be treated with various methods like minoxidil, anti-androgen treatments, and light therapy, but early intervention and realistic expectations are crucial.
36 citations
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June 2018 in “Journal of Dermatology” This article updates Japanese guidelines for diagnosing and treating male and female-pattern hair loss, recommending specific drugs and therapies while advising against certain treatments for female-pattern hair loss.
December 2024 in “Skin Appendage Disorders” Researchers reviewed 13 clinical trials on non-prescription monotherapies like procyanidin and cetirizine for androgenetic alopecia, finding potential improvements in hair density and diameter, but emphasized the need for more robust trials to confirm efficacy and safety.
January 2020 in “Estetologia Medyczna i Kosmetologia” This review reports that most active ingredients in Polish hair loss products lack scientific backing for their effectiveness against hair loss, with some even having counterproductive effects.
December 2021 in “International Journal of Research in Dermatology” This article summarizes expert opinions from Indian dermatologists on managing androgenetic alopecia and telogen effluvium, emphasizing varied treatments based on individual patterns and responses.
12 citations
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December 2023 in “Journal of Applied Pharmaceutical Sciences and Research” In this research, caffeine's versatile pharmacological actions were highlighted, demonstrating its stimulant, bronchodilator, diuretic, and potential anticancer effects through interactions with adenosine receptors, phosphodiesterase, and renal tubules, revealing valuable insights for drug development and therapeutic applications in medicine.
153 citations
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October 2012 in “Skin Pharmacology and Physiology” This review discusses the use of caffeine in cosmetics for its fat-reducing, antioxidant, and hair growth properties, but reports no new research findings.
15 citations
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February 2017 in “International Journal of Women's Dermatology” This source summarizes discussions by an advisory board of twelve experts on hair loss, focusing on heredity, aging, and environmental impacts, and emphasizing strategies that may slow alopecia.
5 citations
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January 2017 in “Skin appendage disorders” In this case report, the authors linked acute psoriasiform contact dermatitis of the forehead and scalp to a low-laser light cap, identifying DMDE in the fabric as a likely cause.
November 2023 in “Hair transplant forum international” Results are not reported in this abstract, which raises the question of whether caffeine has a stimulating effect on hair growth both in laboratory settings and live subjects.
229 citations
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August 2002 in “Experimental Gerontology” This paper discusses key mechanisms of androgen metabolism in androgenetic alopecia and reports the effectiveness of treatments like oral finasteride and topical minoxidil, highlighting the limited success rate due to factors like follicular inflammation.
49 citations
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July 2009 in “Fitoterapia” This study found that C. obtusa oils promoted hair growth in shaved mice and increased the expression of a hair growth regulator, VEGF, in a cell line.
35 citations
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February 2012 in “The New England Journal of Medicine” Early diagnosis and treatment of TPP can prevent complications.
27 citations
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December 2005 in “Journal of Cosmetic Dermatology” This study found that topical application of niacin derivatives significantly increased hair fullness in women with female pattern hair loss compared to a placebo after six months.
8 citations
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January 1996 in “Springer eBooks” This article discusses the minimal research on hair growth physiology and highlights Dr. Masumi Inaba's contributions to understanding androgenetic alopecia, but reports no new experimental results.
This study found that while the over-the-counter market for minoxidil hair loss products is expanding, only 25% of these products report safety information, and none report adverse effects, highlighting a need for greater transparency and accuracy in their advertising.