Topic

Hair and nails

The 56 studies that carry the evidence on this topic, ordered by weight: the stronger the evidence and the more the study was built on, the higher it stands.

all levels level 5 · 56 level 4 · 7 level 3 · 137

5 Repeated evidence Androgenetic alopecia: a review.
2018 · Endocrine
5 Repeated evidence Comorbid Conditions Associated with Alopecia Areata: A Systematic Review and Meta-analysis.
2023 · American journal of clinical dermatology · 680,823 participants
5 Repeated evidence Systematic review of exosome treatment in hair restoration: Preliminary evidence, safety, and future directions.
2023 · Journal of cosmetic dermatology
5 Repeated evidence Platelet-rich plasma and its utility in medical dermatology: A systematic review.
2020 · Journal of the American Academy of Dermatology
5 Repeated evidence Low-dose oral minoxidil does not significantly affect blood pressure: A systematic review and meta-analysis.
2025 · Journal of the American Academy of Dermatology · 119 participants
5 Repeated evidence Low-Level Laser and LED Therapy in Alopecia: A Systematic Review and Meta-Analysis.
2025 · Dermatologic surgery : official publication for American Soc · 3,098 participants
5 Repeated evidence Evaluation of the Safety and Effectiveness of Nutritional Supplements for Treating Hair Loss: A Systematic Review.
2023 · JAMA dermatology
5 Repeated evidence Toenails as biomarker of exposure to essential trace metals: A review.
2020 · Environmental research
5 Repeated evidence Platelet-rich plasma for the treatment of alopecia: a systematic review and meta-analysis.
2023 · Blood transfusion = Trasfusione del sangue · 1,117 participants
5 Repeated evidence Association of Spironolactone Use With Risk of Cancer: A Systematic Review and Meta-analysis.
2022 · JAMA dermatology
5 Repeated evidence Association of 5α-Reductase Inhibitors with Depression and Suicide: A Mini Systematic Review and Meta-analysis.
2024 · European urology focus · 2,213,600 participants
5 Repeated evidence Female Pattern Hair Loss and Androgen Excess: A Report From the Multidisciplinary Androgen Excess and PCOS Committee.
2020 · The Journal of clinical endocrinology and metabolism
5 Repeated evidence Contact Dermatitis Caused by Topical Minoxidil: Allergy or Just Irritation.
2025 · Acta dermato-venereologica · 54 participants
5 Repeated evidence A systematic review of acute telogen effluvium, a harrowing post-COVID-19 manifestation.
2022 · Journal of medical virology · 465 participants
5 Repeated evidence Management of androgenic alopecia: a systematic review of the literature.
2024 · Journal of cosmetic and laser therapy : official publication
5 Repeated evidence Systematic review of mesotherapy: a novel avenue for the treatment of hair loss.
2023 · The Journal of dermatological treatment
5 Repeated evidence A meta-analysis of effects of vitamin E supplementation alone and in combination with omega-3 or magnesium on polycystic ovary syndrome.
2022 · Scientific reports · 504 participants
5 Repeated evidence Gut microbiota and polycystic ovary syndrome, focus on genetic associations: a bidirectional Mendelian randomization study.
2024 · Frontiers in endocrinology · 18,340 participants
5 Repeated evidence A systematic review and evidence-based guideline for diagnosis and treatment of Menkes disease.
2019 · Molecular genetics and metabolism
5 Repeated evidence Efficacy and safety of oral minoxidil in the treatment of alopecia: a single-arm rate meta-analysis and systematic review.
2025 · Frontiers in pharmacology · 2,933 participants
5 Repeated evidence Pathophysiology, conventional treatments, and evidence-based herbal remedies of hair loss with a systematic review of controlled clinical trials.
2025 · Naunyn-Schmiedeberg's archives of pharmacology
5 Repeated evidence Safety of low-dose oral minoxidil treatment for hair loss. A systematic review and pooled-analysis of individual patient data.
2021 · Dermatologic therapy · 442 participants
5 Repeated evidence The effects of behavioral intervention on anthropometric, clinical, and biochemical parameters in patients with polycystic ovary syndrome: a systematic review and meta-analysis.
2024 · Frontiers in endocrinology · 744 participants
5 Repeated evidence Hair Loss After Metabolic and Bariatric Surgery: a Systematic Review and Meta-analysis.
2021 · Obesity surgery · 2,538 participants
5 Repeated evidence Risk of Depression Associated With Finasteride Treatment.
2021 · Journal of clinical psychopharmacology
5 Repeated evidence Premature graying of hair: Risk factors, co-morbid conditions, pharmacotherapy and reversal-A systematic review and meta-analysis.
2021 · Dermatologic therapy
5 Repeated evidence Dutasteride in the treatment of frontal fibrosing alopecia: Systematic review and meta-analysis.
2024 · Journal of the European Academy of Dermatology and Venereolo · 366 participants
5 Repeated evidence Acrokeratosis paraneoplastica (Bazex syndrome) - a systematic review on risk factors, diagnosis, prognosis and management.
2018 · Journal of the European Academy of Dermatology and Venereolo
5 Repeated evidence Full-Spectrum phototherapy in hair loss management: a systematic review of wavelength-dependent mechanisms, clinical efficacy, and future directions.
2025 · Lasers in medical science
5 Repeated evidence Caffeine Supplementation and Hair: A Systematic Review.
2025 · Journal of drugs in dermatology : JDD
5 Repeated evidence Genetic and environmental factors affecting hair density in East Asian populations.
2025 · The British journal of dermatology
5 Repeated evidence Therapeutic options for erosive pustular dermatosis of the scalp: a systematic review.
2021 · The British journal of dermatology · 168 participants
5 Repeated evidence Systemic treatments for alopecia areata: A systematic review.
2019 · The Australasian journal of dermatology · 768 participants
5 Repeated evidence Autologous platelet-rich plasma therapy for pattern hair loss: A systematic review.
2021 · Journal of cosmetic dermatology
5 Repeated evidence Genotypic Spectrum and its Correlation with Alopecia and Clinical Response in Hereditary Vitamin D Resistant Rickets: Our Experience and Systematic Review.
2023 · Calcified tissue international
5 Repeated evidence Effect of gender-affirming hormone therapy on hair growth: a systematic review of the literature.
2023 · Clinical and experimental dermatology · manufacturer helped fund this
5 Repeated evidence Serum 25 hydroxyvitamin D in non-scarring alopecia: A systematic review and meta-analysis.
2024 · Journal of cosmetic dermatology
5 Repeated evidence Establishing baselines of hair density measurements: Variations across ethnicity, scalp region, and measurement techniques: A systematic review.
2024 · Journal of the American Academy of Dermatology
5 Repeated evidence The safety and efficacy of autologous adipose-derived stromal vascular fraction for nonscarring alopecia: A systematic review.
2022 · Archives of dermatological research · 188 participants
5 Repeated evidence The Physician's Guide to Platelet-Rich Plasma in Dermatologic Surgery Part I: Definitions, Mechanisms of Action, and Technical Specifications.
2020 · Dermatologic surgery : official publication for American Soc
5 Repeated evidence Platelet rich plasma for treatment of non-scarring hair loss: systematic review of literature.
2018 · The Journal of dermatological treatment
5 Repeated evidence Management of Folliculitis Decalvans: A Systematic Review.
2025 · The Australasian journal of dermatology · 728 participants
5 Repeated evidence Evaluating the Effectiveness of Commercial Oral Supplements for Hair Growth: A Systematic Review and Meta-Analysis.
2026 · Journal of cosmetic dermatology · 967 participants
5 Repeated evidence Assessing the relationship between dietary factors and hair health: A systematic review.
2026 · Nutrition and health · 61,332 participants
5 Repeated evidence Adenosine as an Active Ingredient in Topical Preparations Against Hair Loss: A Systematic Review and Meta-Analysis of Published Clinical Trials.
2025 · Biomolecules
5 Repeated evidence PPP1CB-Related Noonan Syndrome with Loose Anagen Hair: A Systematic Review.
2026 · Genes · 26 participants
5 Repeated evidence Comorbidities Associated With Lichen Planopilaris: A Systematic Review and Meta-Analysis.
2025 · International journal of dermatology
5 Repeated evidence Clinical Features and Current Therapeutic Approaches to Monilethrix: A Systematic Review.
2025 · Pediatric dermatology
5 Repeated evidence Efficacy of polyphenolic compounds for hair regeneration: a systematic review and meta-analysis of randomized controlled trials.
2026 · The Journal of dermatological treatment · 2,183 participants
5 Repeated evidence Dento-Craniofacial Features of Tricho-Dento-Osseous Syndrome: A Systematic Review and Meta-Analysis.
2025 · Special care in dentistry : official publication of the Amer
5 Repeated evidence The Efficacy of Topical Minoxidil for Non-Scarring Alopecia: A Systematic Review.
2019 · Journal of drugs in dermatology : JDD
5 Repeated evidence A Systematic Review of Outcomes and Patient Satisfaction Following Surgical and Non-surgical Treatments for Hair Loss.
2020 · Aesthetic plastic surgery
5 Repeated evidence The relative effect of monotherapy with 5-alpha reductase inhibitors and minoxidil for female pattern hair loss: A network meta-analysis study.
2024 · Journal of cosmetic dermatology
5 Repeated evidence Evidence-based treatments for female pattern hair loss: a summary of a Cochrane systematic review.
2013 · The British journal of dermatology · 2,349 participants
5 Repeated evidence Emerging Nonsteroid-Based Procedural Therapies for Alopecia Areata: A Systematic Review.
2020 · Dermatologic surgery : official publication for American Soc
5 Repeated evidence An update on the treatment of female alopecia and the introduction of a potential novel therapy.
2015 · Clinical and experimental obstetrics & gynecology