December 2025 in “Frontiers in Nutrition” This review suggests that although hydrolyzed collagen peptides with certain supplements may improve skin elasticity and joint function, evidence for collagen's anti-aging and regenerative benefits remains inconsistent.
1 citations
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November 2011 in “Dermatologica Sinica” This study found a significant decline in serum zinc levels among women of African descent using hair relaxers and experiencing alopecia, with age at first exposure potentially influencing alopecia development.
April 2026 in “International Journal of Drug Delivery Technology” In this study, phytochemical analysis and molecular docking suggested that bioactive compounds in several Ayurvedic herbs may interact persistently with hair growth and antifungal protein targets, indicating potential as plant-based treatments for dandruff and hair loss.
December 2021 in “Trichology and cosmetology:” This study demonstrated that a daily oral supplement of 1000 mg Kera-Diet® improved hair and nail conditions in women experiencing acute telogen effluvium and brittle nail syndrome over three months.
In this clinical trial, the researchers observed that a biotin and silica supplement reduced hair fall, increased hair growth rate, and improved skin elasticity, hydration, and nail quality over 90 days without adverse effects.
14 citations
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December 2010 in “Dermatologica Sinica” This article reviews recent advances and therapeutic approaches in treating alopecia areata, highlighting new potential treatments like pulse corticosteroid therapy, but reports no new research findings.
55 citations
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November 2019 in “Cellular and Molecular Gastroenterology and Hepatology” This study found that oral biotin supplementation improved outcomes in a mouse model of inflammatory bowel disease by reducing inflammatory cytokine production and enhancing intestinal barrier integrity, suggesting potential therapeutic benefits for IBD patients.
40 citations
,
January 2013 in “Journal of Korean Medical Science” This study found that serum ferritin levels were lower in premenopausal women with female pattern hair loss compared to healthy controls, suggesting a potential role for iron in hair loss.
1 citations
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October 2015 in “CRC Press eBooks” Nutricosmetics with active ingredients can help with hair loss and improve hair growth.
This systematic review found no consistent evidence supporting the effectiveness of biotin supplementation for alopecia treatment unless there is a documented deficiency.
19 citations
,
January 2015 in “Current problems in dermatology” This review discusses environmental factors like UV radiation and smoking that affect hair health and highlights the potential role of nutrition, but it reports no new results.
5 citations
,
August 2003 in “British Journal of Dermatology” This article discusses the association between chronic diffuse telogen hair loss in women and iron deficiency, supporting the view that iron's role is unclear and often overstated, but reports no new clinical results.
1 citations
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December 2022 in “Pharmaceuticals” This study found that a sub-fraction of Noni fruit, FEA-3, showed hair growth-promoting effects in a rabbit model of androgenic alopecia, similar to Minoxidil.
1 citations
,
April 2021 in “Aesthetic Cosmetology and Medicine” This article reviews various applications and substances in mesotherapy for skin conditions and discusses the benefits of series treatments, reporting no new clinical results.
11 citations
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May 2021 in “Journal of Medical Virology” This review discusses sex differences in immune response to respiratory viral infections, including SARS-CoV-2, and highlights that hormones like estrogen may provide females with better protection, but it reports no new results.
166 citations
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November 2008 in “Expert Review of Endocrinology & Metabolism” This review discusses biotin and biotinidase deficiencies, their symptoms, and methods of medical management, without presenting new clinical findings.
December 2025 in “International Journal for Fundamental and Interdisciplinary Research in Homoeopathy.” In this retrospective case series, researchers observed that a combined treatment protocol of homoeopathy, Xogen therapy, diet, and vitamin supplementation progressively reduced hair fall and improved hair density in five male patients with androgenic alopecia.
December 2025 in “Journal of Cell Communication and Signaling” This review discusses the role of vitamin D receptor signaling in hair follicle biology for alopecia treatment and underscores the need for continued research, without presenting new clinical results.
9 citations
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July 2020 in “Journal of Animal Physiology and Animal Nutrition” This study found that maternal melatonin supplementation improved fur quality in Rex rabbit offspring by increasing hair follicle density and altering melatonin receptor gene expression in several organs.
20 citations
,
May 1985 in “British journal of nutrition” This study found that in genetically diabetic mice, supplementation with safflower or evening primrose oil prevented the decrease in certain fatty acids and improved skin conditions, but increased plasma glucose levels.
January 2019 in “Journal of cosmetology & trichology” In this study, researchers found that supplementation with L-cystine, either alone or with a keratin hydrolysate, significantly improved hair density, hair and nail brightness, and nail growth in women experiencing acute telogen effluvium and brittle nail syndrome over three months.
2 citations
,
January 2019 in “Medizinische Genetik” Among families with pediatric brain disease, this study identified over 200 novel genetic causes, revealing potential treatment points using drug repurposing or nutritional supplementation.
1 citations
,
October 2022 in “Journal of food and nutrition research” This review investigates the potential benefits of cinnamon supplementation alongside lifestyle changes for managing obesity and polycystic ovary syndrome, but it reports no new clinical results.
1 citations
,
January 2010 in “Springer eBooks” Certain micronutrients may improve hair and nail health, but more research is needed to confirm their benefits.
March 2014 in “CRC Press eBooks” Some nutrients and antioxidants may improve skin and hair health, but more research is needed to confirm these benefits.
October 2023 in “Frontiers in endocrinology” This review examines the role of androgens and androgen receptors in regulating glucose and lipid metabolism, focusing on their effects on mitochondrial content and function; it also discusses the sex-dimorphic influence of androgens and provides theoretical insights into their mechanisms.
4 citations
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January 2017 in “Journal of pediatric endocrinology & metabolism/Journal of pediatric endocrinology and metabolism” This study identified two distinct VDR gene mutations among Lebanese families with hereditary vitamin D-resistant rickets, noting varied treatment responses and promising outcomes despite severe phenotypes.
1533 citations
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October 2008 in “Endocrine reviews” This research highlights that engineered mice lacking the vitamin D receptor show multiple health issues similar to human vitamin D deficiency, underscoring the widespread impacts of the vitamin D endocrine system.
8 citations
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September 2021 in “Journal of Cosmetic Dermatology” This review discusses the varied levels of evidence linking nutritional supplements and antioxidants to dermatological disorders, but it reports no new clinical results and highlights the need for rigorous trials.
24 citations
,
November 2023 in “Regenerative Biomaterials” In this review, the authors summarized the potential therapeutic effects of metal ions in treating cardiovascular diseases, highlighting their roles in protecting cells, inducing angiogenesis, and adjusting ion channel functions, as well as discussing delivery strategies involving biomaterials.