Biotin, also known as Vitamin B7 is one of the most well-marketed supplements for hair growth...except it’s not necessarily helpful. Biotin deficiency is very rare in humans unless you have a rare inheritied holocarboxylaze synthetase or biotinidase deficiency or an acquired form of biotin deficiency from consuming too many raw eggs, alcoholism, states of malabsorption or pronlonged use of certain medications. Biotin supplementation is unnecessary as most individuals with a Western diet get 35-70 mcg/day and the Institute of Medicine recommends about 30 mcg/day. There are no good large scale studies to show biotin supplementation is actually helpful, most of the “evidence” comes from small case reports in children taking small amounts of biotin to improve a condition called “uncombable hair syndrome”. !!️A recent warning by the FDA stated that consumption of significant amounts of biotin could interfere with certain lab tests like falsely diminishing troponin levels, a cardiac enzyme that is elevated during a heart attack. It can also effects labs for thyroid and parathyroid hormone as well as natriuretic peptide markers. ❓Two other vitamins you should consider discussing with your doctor if you’re experiencing hair loss instead of taking biotin? Vitamin D and Iron. Deficiencies in these can frequently lead to telogen effluvium and result in excessive hair shedding and hair loss. Was this helpful? Do you take biotin? What are your thoughts?