47 citations
,
November 2010 in “Vox Sanguinis” Iron supplements helped female blood donors with low iron avoid anaemia and return to donate again.
46 citations
,
December 2010 in “PubMed” Tocotrienol supplements significantly increased hair growth in people with hair loss.
45 citations
,
June 1984 in “Journal of the American Veterinary Medical Association” Zinc supplements quickly improved health issues in sheep and goats.
43 citations
,
April 2005 in “The Journal of Dermatology” Biotin supplements improved skin and hair in a biotin-deficient infant on amino acid formula.
26 citations
,
May 1984 in “Journal of Parenteral and Enteral Nutrition” Biotin supplements restored hair and resolved symptoms in a woman with biotin deficiency.
24 citations
,
May 2017 in “PubMed” Biotin supplements for hair improvement are popular without scientific proof of effectiveness.
23 citations
,
August 1975 in “Experimental Biology and Medicine” Copper supplements during pregnancy improve survival and development in mutant mice.
22 citations
,
September 2008 in “Brain & development” Biotin supplements increased biotin levels but did not significantly prevent hair loss in rats on valproic acid.
21 citations
,
September 2017 in “Journal of Obstetrics and Gynaecology Research” Chromium supplements don't improve insulin, hormone levels, or cholesterol in women with PCOS but raise testosterone levels.
20 citations
,
June 2010 in “Dermatology Online Journal” Zinc supplements and weaning cured a breast-fed baby's zinc deficiency caused by a gene mutation.
12 citations
,
September 1981 in “Acta Dermato Venereologica” Zinc supplements improved the girl's hair growth and thickness.
11 citations
,
April 2018 in “Nutrition Research” Chromium supplements don't help with weight loss or improve hormone and metabolism issues in people with polycystic ovary syndrome.
11 citations
,
January 1987 in “Australian Journal of Experimental Agriculture” Protein supplements helped goats maintain weight and increased fleece growth, but not cashmere growth.
10 citations
,
April 2020 in “Clinics in Dermatology” Biotin supplements improved skin and hair problems in a girl with biotinidase deficiency.
7 citations
,
January 2022 in “Evidence-based complementary and alternative medicine” Ginger supplements helped reduce symptoms and improve metabolic health in hypothyroid patients.
6 citations
,
January 2000 in “The Journal of Trace Elements in Experimental Medicine” Zinc supplements effectively treat acrodermatitis enteropathica.
6 citations
,
September 1996 in “Journal of the European Academy of Dermatology and Venereology” Biotin supplements may help hair regrowth in alopecia areata patients with low biotinidase activity.
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.
4 citations
,
January 2011 in “Dermatologic Therapy” Zinc supplements improved hair loss in patients with zinc deficiency.
3 citations
,
March 2022 in “International Journal of Trichology” Special supplements with collagen, vitamins, and minerals can help treat hair loss.
3 citations
,
January 2007 in “Korean Journal of Pediatrics” Zinc supplements can help skin issues even if blood zinc levels are normal.
2 citations
,
November 2025 in “Nutrition Journal” Probiotic supplements may help reduce inflammation and oxidative stress in women with PCOS.
2 citations
,
June 2023 in “Journal of clinical medicine” Soy supplements improve various skin conditions and aging signs, with topical use boosting skin barrier function.
2 citations
,
August 2022 in “Reproductive Biology and Endocrinology” Magnesium supplements improved quality of life for women with polycystic ovary syndrome, but didn't help with acne, hair loss, or abnormal bleeding.
Vitamin supplements may not improve hair thickness or density in patients with non-scarring hair loss.
2 citations
,
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.
2 citations
,
January 2016 in “DOAJ (DOAJ: Directory of Open Access Journals)” Zinc supplements may help reduce hair loss caused by levetiracetam without affecting seizure control.
1 citations
,
March 2020 in “̒Ulūm-i dārūyī” Selenium supplements improved liver and kidney function and reduced hair loss in beta-thalassemia major patients.
1 citations
,
January 2015 in “Hair therapy & transplantation” Some supplements and hormones can increase hair loss by raising DHT levels.
1 citations
,
September 1996 in “Journal of the European Academy of Dermatology and Venereology” Biotin supplements may help hair regrowth in some alopecia areata patients.