October 2025 in “American Journal of Clinical Dermatology” Low-dose oral minoxidil can effectively promote hair growth but requires careful monitoring for safety.
October 2025 in “Journal of Drugs in Dermatology” This study suggests that topical caffeine may be a safe and promising treatment for hair loss, but the researchers highlight the need for more large-scale randomized trials to confirm its efficacy.
September 2025 in “Journal of Medicinal Chemistry” This manuscript reviews the potential of targeting the Wnt/β-catenin pathway for developing new treatments for androgenetic alopecia, providing insights but no clinical results.
2 citations
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June 2025 in “Journal of Investigative Dermatology” 
May 2025 in “Journal of Investigative Medicine” This study concluded that the Free Androgen Index (FAI) could serve as a reliable biomarker for hyperandrogenism in women with androgenetic alopecia, showing more predictive value than testosterone or SHBG alone.
May 2025 in “Cellular Signalling” Oxidative stress and mitophagy play key roles in hair loss, suggesting potential treatment targets.
April 2025 in “Health Science Reports” In this case-control study, researchers observed that smoking and lighter hair color significantly increased the risk of developing androgenetic alopecia, with older individuals and women showing higher prevalence rates, while hair thickness and shape were not linked to increased alopecia risk.
March 2025 in “The FASEB Journal” In this study on mice, intensive stress through methods like resiniferatoxin injections and physical restraint was found to inhibit hair follicle growth, with the mechanism involving the sympathetic nervous system and the cAMP signaling pathway in hair follicle stem cells.
February 2025 in “Journal of the American Academy of Dermatology” Standardized treatment protocols are needed for children with androgenetic alopecia.
February 2025 in “Biomolecules” This research found that melatonin has a bidirectional effect on hair follicle stem cell survival, improving it at low doses and inhibiting it at high doses.
January 2025 in “Dermatologic Therapy” In this review, researchers explored key mechanisms underlying androgenetic alopecia, revealing how hormonal, oxidative, inflammatory, and lipid dysregulation suppress hair growth pathways and suggesting new therapeutic targets such as DP2 antagonists and microbiome modulators.
January 2025 in “Journal of Drugs in Dermatology” This study found that oral minoxidil is superior to topical minoxidil in terms of ease of use, adherence, and patient satisfaction, without increasing systemic side effects, although it did have a higher incidence of hypertrichosis.
October 2024 in “Molecular Nutrition & Food Research” This review found that deficiencies or imbalances in micronutrients like vitamin B, vitamin D, iron, and zinc may play a role in androgenetic alopecia and could be modifiable risk factors for prevention and treatment, though evidence varies.
October 2024 in “World Journal of Psychiatry” In this study, patients with androgenetic alopecia experiencing stress had higher cortisol levels and altered neurotrophic factors compared to non-stressed patients, which correlated with more severe hair loss progression even after minoxidil treatment.
September 2024 in “Alcohol and Alcoholism” This study suggests that alcohol consumption may have a less significant impact on androgenetic alopecia than previously thought, with odds ratios above 1.0 but not conclusively strong.
June 2024 in “Molecules/Molecules online/Molecules annual” This study found that Platycladus orientalis flavonoids may reduce oxidative damage and slow melanin degradation in AGA-affected hair, improving its quality.
1 citations
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September 2023 in “eLife” This study found that TLR2 expression in hair follicle stem cells is crucial for hair follicle maintenance and regeneration, with TLR2-dependent activation potentially offering new therapeutic approaches for hair loss prevention through mechanisms involving immune pathways and CEP administration.
August 2023 in “Psychology, Health & Medicine” This systemic review and meta-analysis found that men with androgenetic alopecia generally experience moderate impacts on quality of life, but limited evidence of severe effects on mental health.
1 citations
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May 2023 in “JAMA dermatology” Tight hairstyles can cause hair loss, which can be permanent if not treated early.
1 citations
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April 2023 in “Biomolecules” This study found that hair care products containing fermented papaya, fermented mangosteen, and caffeine significantly inhibited hair loss, increased hair density and thickness, and improved hair follicle structure in individuals with androgenic or diffuse alopecia over three months compared to placebo and caffeine controls.
This review suggests that stem cells might be a promising addition or alternative to standard treatments for androgenic alopecia, but larger studies are needed to confirm these findings.
March 2023 in “International Journal of Molecular Sciences” This study found that exosomes from adipose mesenchymal stromal cells, particularly those carrying miR-122-5p, may enhance hair follicle regeneration in androgenic alopecia by targeting the TGF-β/SMAD3 axis.
March 2023 in “Clinical, Cosmetic and Investigational Dermatology” This study concluded that both oral and topical spironolactone effectively treat androgenetic alopecia, with topical administration being safer and suitable for any gender, especially when combined with minoxidil.
This study identified CXXC5 as a key mediator of hair loss induced by PGD2 and DHT via suppression of the Wnt/β-catenin pathway, with implications for potential therapeutic targets.
January 2023 in “Iranian Journal of Pharmaceutical Research” This study concluded that S. hexaphylla extract may improve androgenetic alopecia by reducing 5α-reductase and androgen receptor levels, inhibiting apoptosis, and promoting keratinocyte proliferation in experimental models.
5 citations
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February 2022 in “Acta Biomaterialia” This review highlights the potential of nanotechnology-based formulations in hair care and treatment, emphasizing how these innovative materials can enhance the stability, efficacy, and safety of active compounds while addressing the limitations of conventional formulations.
16 citations
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January 2022 in “International journal of molecular sciences” This review summarizes the influences of lifestyle factors such as smoking, alcohol, and diet on the pathogenesis of alopecia areata but reports no new clinical results.
318 citations
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January 2022 in “Signal Transduction and Targeted Therapy” This study systematically reviews the Wnt/β-catenin signaling pathway, discussing its origin, composition, function, involvement in tumors and diseases, and the development of small-molecular compounds targeting this pathway for disease treatment.
3 citations
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November 2021 in “Journal of The American Academy of Dermatology” This article discusses hormonal mechanisms underlying androgenetic alopecia but does not report any new findings; it reviews the roles of dihydrotestosterone and available FDA-approved treatments.
9 citations
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November 2021 in “Frontiers in Cell and Developmental Biology” This study found that PBX1 overexpression reduces hair follicle-derived mesenchymal stem cell senescence and apoptosis by alleviating ROS-mediated DNA damage, rather than enhancing DNA repair.
8 citations
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October 2021 in “Indian Journal of Plastic Surgery/Indian journal of plastic surgery” This study reviewed data from 2,896 hair transplant patients over 10 years, identifying sterile folliculitis, vasovagal shock, facial edema, and other minor complications, with no life-threatening issues reported. Detailed counseling and thorough medical history assessments are recommended to minimize risks.
1 citations
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July 2021 in “Journal of Central South University. Medical sciences” This study investigates how exercise relates to the severity of androgenic alopecia and aims to guide patients in selecting appropriate exercise types and amounts, but reports no new clinical results.
10 citations
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May 2021 in “Clinical, cosmetic and investigational dermatology” In this mouse study, UVA and UVB exposure led to hair follicle miniaturization, graying, and prolonged hair cycle duration, associated with changes in stem cells and increased Wnt signaling activity.
11 citations
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March 2021 in “Cleveland Clinic Journal of Medicine” In this overview, the authors note that both pharmacologic and nonpharmacologic treatments are effective for pattern hair loss, emphasizing early detection and intervention to maintain hair.
5 citations
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January 2021 in “Skin appendage disorders” This review summarizes evidence suggesting that smoking is associated with alopecia and premature hair graying, with smokers showing higher prevalence than nonsmokers.
86 citations
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July 2020 in “International Journal of Molecular Sciences” This review discusses the role of Wnt/β-catenin signaling in hair follicle regeneration and highlights recent progress in developing hair loss treatments targeting this pathway, but reports no new clinical results.
8 citations
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June 2020 in “Dermatologic Therapy” This study reports that patients with androgenetic alopecia had lower quality of life scores across all measured domains compared to controls, with disease severity worsening the impact, particularly socially for those under 30.
12 citations
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April 2020 in “British Journal of Dermatology” In this study, researchers found that caffeine can counteract stress-induced damage in ex vivo human androgenetic alopecia hair follicles, suggesting it may help prevent stress-related hair loss.
4 citations
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February 2020 in “Dermatologic Therapy” Poor sleep, meat-heavy diets, and junk food worsen hair loss, while sugary drinks may help.
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.
9 citations
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June 2019 in “Mycopathologia” This study found that the presence of Malassezia fungi in the scalp's hairy roots was more pronounced in individuals with androgenetic alopecia than in healthy controls, suggesting a potential link to the condition.
26 citations
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May 2019 in “PLOS ONE” This study observed that hair follicles in hair loss patients had increased levels of Propionibacterium acnes, potentially linked to elevated immune response gene expression in miniaturized hair follicles.
73 citations
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April 2019 in “Experimental Dermatology” This review explores the hair follicle microbiome's interaction with the immune system, discussing its potential clinical implications for scalp health and disease but reports no new clinical results.
15 citations
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January 2018 in “Acta dermato-venereologica” This meta-analysis found that treating male androgenetic alopecia with 5α-reductase inhibitors increases the risk of sexual dysfunction, with a statistically significant risk for finasteride but not for dutasteride.
9 citations
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September 2017 in “Journal of Investigative Dermatology Symposium Proceedings” In this study, PGD2 was shown to increase testosterone production in human keratinocytes through reactive oxygen species, suggesting potential benefits of antioxidants like N-acetyl-cysteine for AGA patients.
100 citations
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September 2017 in “Molecular and Cellular Endocrinology” This review discusses the molecular mechanisms of androgens and androgen receptors in skin disorders, particularly androgenetic alopecia, and reports no new clinical results; it highlights potential areas for future treatment development.
21 citations
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May 2017 in “International Journal of Dermatology” This study found that among Caucasian individuals with androgenetic alopecia, being overweight and smoking were associated with greater severity of the condition.
19 citations
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April 2015 in “European Journal of Pharmacology” This study found that dihydrotestosterone (DHT) may shorten the hair growth cycle through mechanisms like cell-cycle arrest and β-catenin downregulation in rat hair follicle cells.
93 citations
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February 2015 in “Journal of Investigative Dermatology” This study suggests that oxidative stress may contribute to androgenetic alopecia by inducing premature senescence and secretion of hair growth inhibitors in dermal papilla cells from balding scalp.
60 citations
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May 2014 in “British Journal of Dermatology” This study found that caffeine enhanced hair growth and keratinocyte proliferation in human hair follicles, with female follicles showing greater sensitivity than male ones.
205 citations
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March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
20 citations
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June 2011 in “ISRN Dermatology (Print)” This case report describes a woman experiencing severe hair loss due to allergic contact dermatitis from a hair dye containing PPD.
34 citations
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January 2011 in “Annals of dermatology/Annals of Dermatology” This study found that using a hair dryer at 15 cm with continuous motion causes less surface damage to hair compared to natural drying, although higher temperatures increased overall surface damage.
114 citations
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January 2007 in “International Journal of Dermatology” This study found that caffeine can stimulate hair growth in vitro and counteract testosterone-induced growth suppression in hair follicles from male AGA patients.
78 citations
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February 2004 in “British Journal of Dermatology” This article reviews the potential impact of melatonin on hair growth, noting its benefits observed in animals, but reports no clinical results in humans to date.
