5 citations
,
October 2019 in “Giornale italiano di dermatologia e venereologia” Biotin supplements can improve certain skin disorders and hair loss when a deficiency is present.
5 citations
,
May 1952 in “Journal of Animal Science” Riboflavin deficiency in baby pigs causes health issues, and while supplements help, they may not fully fix internal problems.
6 citations
,
June 2013 in “Toxicological Research” Topical Valproate is safe for human skin and unlikely to cause irritation.
88 citations
,
October 1983 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Patients with this syndrome can have different responses and worsening resistance to treatment over time.
9 citations
,
March 2015 in “Journal of Microbiology and Biotechnology” Ultra-high molecular weight poly-γ-glutamic acid may help promote hair growth.
15 citations
,
March 1996 in “PubMed” Anorexia nervosa may cause a hair defect called pili torti due to malnutrition and high vitamin A levels.
3 citations
,
January 2015 in “Journal of the Egyptian Womenʼs Dermatologic Society”
PCOS patients, especially obese ones, often lack vitamin D and may need supplements and lifestyle changes.
January 2023 in “International journal of dermatology, venereology and leprosy sciences” Low levels of vitamin D and ferritin may increase the risk of female pattern hair loss.
July 2025 in “Food Science & Nutrition” Vitamin D supplements improve hair growth and metabolism in rabbits.
February 2025 in “Intisari Sains Medis” PDRN from salmon may slow skin aging by improving skin quality and reducing inflammation.
7 citations
,
August 2021 in “Open Access Macedonian Journal of Medical Sciences” The VDR gene polymorphism does not affect BDNF levels in autoimmune thyroiditis and hypothyroidism patients.
October 2020 in “The American journal of gastroenterology” Para-aminobenzoic acid in hair supplements can cause autoimmune hepatitis.
98 citations
,
February 2010 in “Dermatology Online Journal” Vitamin D may help treat hair disorders.
April 2017 in “The FASEB Journal” Eating more vitamin A changes hair growth-related proteins in mice, affecting hair cycle stages.
20 citations
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December 2011 in “Journal of inherited metabolic disease” Valproic acid treatment increases a specific acid in urine by blocking an enzyme, possibly causing skin rash and hair loss.
January 2005 in “FJ. Fragrance journal”
6 citations
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August 2013 in “한국응용생명화학회지” Certain natural compounds can block an enzyme linked to prostate enlargement and hair loss, showing potential for new treatments.
12 citations
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June 2020 in “Frontiers in Cell and Developmental Biology” The PP2A-B55α protein is essential for brain and skin development in embryos.
December 2025 in “International Journal of Molecular Sciences” Bacopa procumbens extract may help protect the brain in Parkinson's disease.
October 2021 in “Interfaces Científicas” Nutricosmetics for hair treatment often contain biotin, pyridoxine, zinc, and other nutrients, but more research and professional guidance are needed for their use.
October 2017 in “The Japanese Biochemical Society/The Molecular Biology Society of Japan” Some natural compounds might help hair grow.
November 2022 in “Journal of the Endocrine Society” Taking biotin can lead to incorrect low results in free testosterone tests.
April 2024 in “Nepal journal of dermatology, venereology & leprology” Vitamin D is important for skin health and can help treat and prevent various skin conditions.
January 2025 in “The International Journal of Gastroenterology and Hepatology Diseases” Vitamin B12 is crucial for hair and nerve health, and its malabsorption can cause hair loss and nerve damage.
126 citations
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November 1987 in “The Journal of Pediatrics” Selenium deficiency can cause skin and hair color loss, muscle weakness, and blood cell changes, but these improve with selenium supplements.
January 2012 in “Human health handbooks” The skin produces and uses vitamin D for bone health, cell growth, and immune function.
76 citations
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January 2010 in “Journal of bone and mineral metabolism” 19 citations
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June 2010 in “Journal of acupuncture and meridian studies” A plant extract was found to effectively block an enzyme related to male hormone-related diseases.
114 citations
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October 2009 in “Gastroenterology” Zinc is crucial for nutrition, especially in patients with specific health conditions, and requires careful supplementation and monitoring.