January 2023 in “Postepy Dermatologii I Alergologii” Zinc is important for health and its supplementation may help treat various conditions.
2 citations
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May 2018 in “PubMed” Pregnant women with isolated hypothyroxinemia face more health issues, so iodine and folic acid supplements are important before and during early pregnancy.
57 citations
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February 2018 in “Journal of the American Academy of Dermatology” Biotin supplements are not proven to improve hair or nails and may interfere with medical tests.
April 2024 in “Journal of the American Academy of Dermatology” Taking biotin supplements for hair and nails may not be helpful and could cause harm.
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.
4 citations
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October 2024 in “Journal of Cosmetic Dermatology” Taking natural keratin supplements improved skin, hair, and nails in women.
April 2024 in “Current research in nutrition and food science” Taking an amino acid supplement improved skin, hair, and nail health in women.
2 citations
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January 2019 in “Elsevier eBooks” Biotin supplements are unnecessary for most people but may help with certain conditions like biotin deficiency, brittle nails, and some hair loss.
March 2016 in “Reactions Weekly” A woman experienced hair loss, nail changes, bone marrow suppression, and low blood protein after taking azathioprine.
1 citations
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March 2022 in “IntechOpen eBooks” Collagen is crucial for health and treating certain diseases, and supplements can improve skin, nails, and hair conditions.
Supplements improve health, appearance, and athletic performance.
3 citations
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January 2017 in “Journal of cosmetology & trichology” The nutritional supplement improved hair quality and reduced hair loss.
1 citations
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January 2010 in “Springer eBooks” Certain micronutrients may improve hair and nail health, but more research is needed to confirm their benefits.
Biotin and silica from plants improve hair, skin, and nail health.
7 citations
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January 2022 in “Evidence-based complementary and alternative medicine” Ginger supplements helped reduce symptoms and improve metabolic health in hypothyroid patients.
April 2024 in “International Journal of Chemical and Biochemical Sciences” Most young people in Saudi Arabia use cosmetic nutritional supplements for nutrient deficiencies and appearance, but more education on proper use is needed.
January 2026 in “http://isrctn.com/” The food supplement may help reduce hair shedding and improve hair growth.
September 2024 in “Meditsinskiy sovet = Medical Council” Biotin effectively treats hair loss, skin, and nail issues without overdose risk.
382 citations
,
February 2010 in “Archives of Internal Medicine” A manufacturing error in a dietary supplement caused severe selenium poisoning, affecting many people and highlighting the need for stricter quality control.
4 citations
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August 2018 in “Journal of The American Academy of Dermatology” The authors agree that biotin may help certain hair disorders but lacks evidence for use in healthy people and call for more research.
August 2018 in “Journal of the American Academy of Dermatology” Biotin treatment for hair, nail, and skin disorders has weak evidence and should not be recommended unless new research shows clear benefits.
32 citations
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January 2006 in “Liver transplantation” Vitamin A toxicity can cause severe health issues and may require a liver transplant if other treatments fail.
1 citations
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June 2019 in “Current developments in nutrition” A combination of arginine silicate complex and magnesium biotinate improves hair and nail growth in rats.
June 2025 in “British Journal of Dermatology” Nail abnormalities in children can indicate deeper health issues.
October 2022 in “Zenodo (CERN European Organization for Nuclear Research)” Kudo Zero Sugar Collagen Gummies may not effectively reduce wrinkles or improve skin, hair, and nails.
June 2024 in “British Journal of Dermatology” The review helps improve diagnosis and treatment of challenging hair disorders.
June 2024 in “British Journal of Dermatology” The grand round helps improve diagnoses and suggests new treatments for hair disorders.
November 2025 in “Quality in Sport” Collagen supplements improve skin, hair, and nails, especially with vitamin C and minerals.
November 2019 in “European journal of internal medicine” A Laotian man with unusual skin changes and multiple growths in his gut was diagnosed with Cronkhite-Canada Syndrome and improved with nutritional and immune-based treatments.
5 citations
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April 2013 in “Nasza Dermatologia Online” Oral zinc therapy is effective for treating acrodermatitis enteropathica.