Taking too much biotin can mess up blood test results, which might lead to wrong diagnoses and treatments.
27 citations,
February 1988 in “Journal of the American Academy of Dermatology” The skin condition Ulerythema ophryogenes did not improve with treatment in a patient with other birth defects.
24 citations,
May 2017 in “PubMed” Biotin supplements for hair improvement are popular without scientific proof of effectiveness.
3 citations,
April 2009 in “Pediatrics in review” Doctors need to recognize and treat metabolic disorders in children early to prevent serious health issues.
September 2019 in “PubMed” The conclusion suggests using a science-based, multi-targeted treatment for hair loss instead of just biotin.
Biotin does not significantly help with hair growth.