Biotin (vitamin B7) at 5,000 mcg is Gelagen’s headline ingredient and the most commonly studied dose for hair and nail keratin production.
Biotin serves as a cofactor for carboxylase enzymes involved in amino acid metabolism — the building blocks of keratin protein in hair, skin and nails. Research at 2,500–5,000 mcg doses shows modest improvements in nail brittleness and hair growth markers over 3–6 months.
This is non-negotiable safety information. The FDA issued a safety communication warning that high-dose biotin can interfere with certain laboratory tests, including troponin used to diagnose heart attacks. A falsely normal troponin result in a patient actually having a heart attack is a life-threatening scenario.
Tell every healthcare provider that you take biotin before any blood work. This applies to emergency situations too. Carry this information with you.