July 2023 in “Plastic and Aesthetic Nursing” Biotin and collagen may help improve hair health.
May 2014 in “Japanese Society of Anti-Aging Medicine” 2 citations
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January 2020 Certain dietary supplements can improve hair health.
3 citations
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February 2020 in “International journal of women’s dermatology” Most women with hair loss take more supplements than average, but these often don't help and can be risky and costly.
January 2025 in “Indian Journal of Animal Research” Herbal supplements improved semen quality in bulls.
1 citations
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November 2022 in “Molecules/Molecules online/Molecules annual” Some calcium supplements have more calcium than their labels say, and a few have less.
March 2023 in “International Journal of Science and Research (IJSR)” Iron supplements improve life quality for people with anemia.
2 citations
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June 2023 in “Journal of clinical medicine” Soy supplements improve various skin conditions and aging signs, with topical use boosting skin barrier function.
30 citations
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June 2006 in “British journal of dermatology/British journal of dermatology, Supplement” Oral zinc sulphate reduces dark hair color in mice.
September 2023 in “Baylor University Medical Center Proceedings” Some alternative supplements might help with hair loss due to androgenetic alopecia.
32 citations
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July 2018 in “Scientific Reports” Essential-oils-cobalt improves goat growth and product quality.
January 2025 in “Journal of the Korean Society of Food Science and Nutrition” Combining finasteride and black soybean extract better protects hair cells from damage and may treat hair loss effectively with fewer side effects.
March 1995 in “Proceedings of the British Society of Animal Science” Zinc is absorbed better in dogs when supplied as a chelate with amino acids.
1 citations
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January 1985 in “IRIS UNIMORE (University of Modena and Reggio Emilia)”
August 2025 in “Vestnik dermatologii i venerologii” "Selenzin" and dietary changes significantly improved hair density and reduced hair loss.
July 2023 in “Media Dermato Venereologica Indonesiana” Vitamin D supplements should be used cautiously in sarcoidosis patients, with regular monitoring to avoid high calcium levels.
November 2024 in “PubMed” The supplement improved hair density and was safe to use.
1 citations
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January 1993 Zinc is crucial for animal health, and diets often need zinc supplements to prevent deficiency.
8 citations
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September 2021 in “Journal of Cosmetic Dermatology” Some diets and supplements might help with skin disorders, but their effectiveness varies and more research is needed.
40 citations
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July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
September 2025 in “Clinics and Practice” Collagen with calcium and vitamin D improves bone health, skin elasticity, and reduces hair loss in menopausal women.
January 2025 in “Open Veterinary Journal” Zinc, copper, and vitamin A deficiencies cause skin disorders in sheep.
12 citations
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September 1981 in “Acta Dermato Venereologica” Zinc supplements improved the girl's hair growth and thickness.
9 citations
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September 2018 in “Clinical, Cosmetic and Investigational Dermatology” One supplement improved hair loss and quality faster and more effectively than the other in treating telogen effluvium.
March 1995 in “Proceedings of the British Society of Animal Science” Dogs absorb zinc better from amino acid-chelated sources than inorganic ones.
1 citations
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January 2020 in “Recent Research in Genetics and Genomics/Recent Research in Genetics and Genomics ” High doses of Lepidium sativum seed extract are toxic and should be used with caution.
August 2024 in “Journal of the Association of Physicians of India” Adding vitamin B12 to food like salt can effectively improve vitamin levels in rural areas.
27 citations
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September 2015 in “PharmaNutrition” Astaxanthin is a safe antioxidant that may improve heart, skin, eye health, and physical performance, and help manage chronic diseases.
June 2012 in “한국생활과학회지 = Korean journal of human ecology” The supplement reduced hair loss and increased hair thickness without side effects.
October 2025 in “Scientific Reports” Serenoa repens extract shows promise as a natural treatment for prostate cancer.