70 citations
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November 1984 in “Cell & tissue research/Cell and tissue research” Vitamin D3 affects cell differentiation in specific skin areas.
17 citations
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April 2007 in “Kidney international” Vitamin D boosts a specific gene activity in kidney cells that could improve heart and kidney function.
January 2005 in “Digital Access to Scholarship at Harvard (DASH) (Harvard University)” The FDA struggles to regulate hair loss supplements due to a law allowing unproven claims.
October 2017 in “Journal of Investigative Dermatology Symposium Proceedings” Using lidocaine before keloid injections makes the treatment more comfortable for patients.
6 citations
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January 2021 in “Journal of Nutritional Science and Vitaminology” Taking vitamin D3 pills helped improve hair growth in women with a certain type of hair loss.
Combining systemic steroids and dithranol can effectively regrow hair in severe alopecia areata.
February 2024 in “Indian Dermatology Online Journal” Sports supplements can cause skin problems and may contain harmful substances.
November 2025 in “Journal of Investigative Dermatology” Dithranol reduces inflammation in alopecia areata by lowering certain immune responses.
12 citations
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June 2017 in “Dermatologic therapy” Higher concentrations of dithranol can help regrow hair in severe alopecia areata.
July 2025 in “International Journal of Research in Dermatology” Nutritional supplements with natural DHT inhibitors are effective for treating androgenetic alopecia.
2 citations
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March 2012 in “Nature Reviews Endocrinology” The body's change of testosterone into DHT is not necessary for testosterone's muscle and sexual effects.
March 2019 in “Evidence Based Women Health Journal (Online)” Vitamin D supplements increased ovulation rates in women with PCOS who were vitamin D deficient.
7 citations
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April 2020 in “Dermatologic Therapy” Dexpanthenol improves hair growth in male baldness.
1 citations
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May 2024 in “Communications Biology” Dab2 protein is crucial for hair follicle stem cell renewal and preventing early aging.
82 citations
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January 2000 in “Hormone Research in Paediatrics” DHEA stimulates skin oil glands and could help postmenopausal women, with potential for acne and excessive hair growth treatments.
43 citations
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March 2009 in “Journal of Cellular and Molecular Medicine” TGF-β2 plays a key role in human hair growth and development.
110 citations
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April 2002 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Dihydrotestosterone gel improved well-being and sexual function in older men without negatively affecting prostate health.
142 citations
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December 1991 in “Antimicrobial Agents and Chemotherapy” Dextran sulfate was found to be toxic and ineffective for treating HIV.
April 2025 in “Journal of Controversies in Obstetrics & Gynecology and Pediatrics” Vitamin D may improve fertility in women with PCOS.
September 2012 in “African Journal of Urology” Testosterone replacement therapy improves libido, mood, muscle strength, and bone density in men with Testosterone Deficiency Syndrome.
24 citations
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June 2010 in “Clinics in Dermatology” Taking too many vitamin and mineral supplements can cause serious health problems.
1 citations
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February 2025 in “Frontiers in Endocrinology” Diet and sunlight are important for maintaining good vitamin D levels.
40 citations
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October 2002 in “Endocrinology” Vitamin D3 analogs can promote hair growth in mice genetically prone to hair loss.
The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
61 citations
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September 1970 in “Journal of the American Geriatrics Society” Anabolic steroids may help prevent aging effects by reducing toxicity, not by their usual functions.
November 2021 in “Journal of Regenerative Biology and Medicine” Vitamin D3 and anisodamine may help treat hair loss in children.
1 citations
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January 1998 in “International journal of cancer” Rubbing vitamin D3 on skin can help prevent hair loss from chemotherapy and slow breast tumor growth in mice.
4 citations
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January 2012 in “International Journal of Cardiology” Dihydrotestosterone (DHT) worsens heart enlargement, and blocking it may help prevent heart issues.
1 citations
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May 2019 in “Annals of Medicine” Many food supplements in Portugal have mineral doses above safe levels, posing health risks.
1 citations
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May 2017 in “Asian journal of medical sciences” The dietary supplement significantly improved skin, nails, and hair in older adults.