1 citations
,
July 2012 in “EFSA Journal” The combination of certain vitamins and pumpkin seed oil has not been proven to maintain normal hair.
5 citations
,
January 2012 in “Journal of nutrition & food sciences” The supplement improved hair, skin, and nails appearance and had long-term benefits.
12 citations
,
September 2022 in “Foods” Some nutraceuticals may help in COVID-19 prevention and treatment, but more research is needed.
3 citations
,
September 2025 in “ChemMedChem” Multitarget drugs are needed to better treat complex diseases.
Taking too much biotin can mess up blood test results, which might lead to wrong diagnoses and treatments.
1 citations
,
July 2023 in “Plastic and Aesthetic Nursing” Biotin and collagen may improve hair health.
January 1954 in “DMW - Deutsche Medizinische Wochenschrift”
March 2023 in “JIIS (Jurnal Ilmiah Ibnu Sina): ilmu farmasi dan kesehatan” The best biotin hair tonic formula has 20% span 80, 9.47% tween 80, and 5% PEG 400.
December 2022 in “Cosmetics” The food supplement improved hair growth and strength in people with a certain type of hair loss and had no major side effects.
January 2015 in “Zurich Open Repository and Archive (University of Zurich)” The supplement did not work better than a placebo for hair loss in women over 60.
74 citations
,
August 2006 in “Journal of clinical gastroenterology” Shen-Min, a hair growth supplement, likely caused acute hepatitis in a woman, improving after she stopped taking it.
5 citations
,
December 1942 in “Journal of the American Medical Association” Choline and biotin are important for liver health and preventing certain deficiencies in animals, and more research is needed to understand their benefits in humans.
71 citations
,
June 2008 in “Annals of Internal Medicine” Excessive selenium from supplements can be harmful.
Vitamin supplements may not improve hair thickness or density in patients with non-scarring hair loss.
3 citations
,
August 2005 in “Journal of Pediatric Gastroenterology and Nutrition” The toddler's health issues were caused by too much vitamin A from supplements.
August 2025 in “Quality in Sport” Vitamin A is essential but too much can be harmful, especially from supplements.
1 citations
,
November 2022 in “Molecules/Molecules online/Molecules annual” Some calcium supplements have more calcium than their labels say, and a few have less.
January 2024 in “Apple Academic Press eBooks” Vitamins might not effectively treat hair loss and can sometimes be harmful.
47 citations
,
December 2006 in “Therapy” The dietary supplement helped increase hair growth in women with hair loss.
September 2023 in “Baylor University Medical Center Proceedings” Some alternative supplements might help with hair loss due to androgenetic alopecia.
January 2023 in “Italian journal of dermatology and venereology” The supplement effectively improved hair growth and reduced hair loss safely.
June 2023 in “Italian journal of dermatology and venereology” The oral supplement improved hair loss in patients with telogen effluvium.
119 citations
,
July 2016 in “Annals of the New York Academy of Sciences” Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.
February 2025 in “Animals” Amino acid-complexed trace minerals improve hair quality and activity in senior dogs.
3 citations
,
April 2011 in “Expert Review of Dermatology” Mesotherapy lacks strong evidence for effectiveness and safety, and its ingredients are not FDA-approved for subcutaneous use.
79 citations
,
April 1996 in “JAMA” Taking too many selenium supplements can cause serious health problems like hair loss and fatigue.
September 2025 in “Clinics and Practice” Collagen with calcium and vitamin D improves bone health, skin elasticity, and reduces hair loss in menopausal women.
2 citations
,
November 1961 in “American Journal of Clinical Nutrition” September 2021 in “Zenodo (CERN European Organization for Nuclear Research)” January 2017 in “Nutrafoods - International Journal on Nutraceuticals, Functional Foods and Novel Foods” The supplement reduces hair loss and increases hair thickness in older women.