1 citations
,
July 2012 in “EFSA Journal” The combination of certain vitamins and pumpkin seed oil has not been proven to maintain normal hair.
10 citations
,
September 2013 in “Nutrition” The ketogenic diet can worsen biotin deficiency, suggesting a need for biotin supplements.
April 2018 in “Journal of Investigative Dermatology” The supplement improved hair growth, strength, and moisture.
September 2025 in “Indian Journal of Psychiatry” Valproic acid treatment may cause hair loss due to reduced biotinidase activity.
July 2024 in “Journal of Investigative Dermatology” 21 citations
,
June 1991 in “Journal of Inherited Metabolic Disease” Selenium deficiency caused symptoms in a child, which improved with selenium supplements.
April 2024 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Using both minoxidil and biotin together increased hair growth more than using either one alone.
21 citations
,
June 2011 in “Journal of child neurology” Valproic acid and carbamazepine do not change biotin or biotinidase levels but may lower zinc levels, still within normal range.
September 2020 in “Benha Journal of Applied Sciences” Patients with Alopecia Areata have lower levels of zinc and biotin than healthy individuals.
4 citations
,
August 2021 in “Pediatric dermatology” Biotin, alone or with minoxidil, effectively treats short anagen syndrome.
11 citations
,
April 2020 in “Nutrafoods - International Journal on Nutraceuticals, Functional Foods and Novel Foods” Taking Bioactive Collagen Peptides increases hair thickness.
Supplements improve health, appearance, and athletic performance.
3 citations
,
January 2017 in “Journal of cosmetology & trichology” The food supplement with L-cystine, Serenoa repens extract, and biotin safely reduced hair loss and improved hair growth in men and women.
2 citations
,
December 2014 Low biotin intake during pregnancy can affect biotin transport in mothers and fetuses.
October 2025 in “Jurnal Ilmiah Kedokteran dan Kesehatan” Multivitamins can help hair growth and health, especially if you have nutritional deficiencies, but should be used carefully.
June 2022 in “Zenodo (CERN European Organization for Nuclear Research)” 
September 2022 in “Journal of the American Academy of Dermatology” Taking specific vitamins and minerals did not significantly improve hair growth in people with hair loss.
2 citations
,
November 1961 in “American Journal of Clinical Nutrition” 
January 2012 in “Surgical & Cosmetic Dermatology” Nutrition can improve hair strength and reduce breakage.
April 2022 in “UNESP Institutional Repository (São Paulo State University)” Using both topical minoxidil and oral biotin together significantly boosts hair growth and density.
The supplement improved hair density and overall hair beauty.
February 1945 in “New England Journal of Medicine” 6 citations
,
November 2019 in “Journal of Cosmetic Dermatology” The compound improved hair growth and reduced hair loss.
14 citations
,
April 2000 in “Animal Science/Animal science” Nutrients like vitamins, copper, zinc, and amino acids are crucial for healthy hair and wool growth.
January 1954 in “DMW - Deutsche Medizinische Wochenschrift” 
Biotin and silica from plants improve hair, skin, and nail health.
1 citations
,
July 2012 in “EFSA journal” KF2BL20 does not have proven benefits for maintaining normal hair.
October 2019 in “UNESP Institutional Repository (São Paulo State University)” Minoxidil is more effective than biotin for increasing nail growth rate.