Biotin, also called vitamin B7 or vitamin H, is a water-soluble B vitamin that serves as a coenzyme in several metabolic pathways. It is involved in the metabolism of fats, carbohydrates, and amino acids. Biotin is essential for normal cell growth and is required for the synthesis of certain proteins including keratin, the structural protein that makes up hair, skin, and nails.
What does biotin do?
Biotin acts as a coenzyme for carboxylase enzymes — enzymes involved in key metabolic reactions including fatty acid synthesis, gluconeogenesis (production of glucose from non-carbohydrate sources), and amino acid catabolism. These reactions are essential for producing energy and building the molecules the body needs for growth and maintenance.
Biotin is also required for the normal maintenance of mucous membranes and skin, and contributes to the normal function of the nervous system and psychological function — both recognised by the European Food Safety Authority (EFSA).
Who commonly takes biotin?
Biotin supplementation is most popular among people looking to support the appearance and strength of hair and nails. While severe biotin deficiency is rare, mild insufficiency may contribute to brittle nails and hair changes. People on restrictive diets, those who consume large amounts of raw egg whites (which bind biotin), and pregnant women have higher biotin needs and commonly supplement.
What does 10,000 mcg (10 mg) mean?
Biotin supplements commonly come in doses ranging from 1000 mcg to 10,000 mcg. The daily adequate intake for adults is approximately 30 mcg — making supplement doses significantly higher than what is needed to prevent deficiency. High-dose biotin is taken on the premise that excess may support keratin production more effectively. The body excretes excess biotin in urine since it is water-soluble.
Important: high doses of biotin can interfere with certain laboratory blood tests, including thyroid hormone tests and cardiac troponin assays. If you are having blood tests, inform your doctor that you are taking high-dose biotin and stop supplementing for at least 48–72 hours beforehand.
Available product
Supplements & More carries Horbäach Biotin 10,000 mcg (250 tablets). Imported from the United States, delivered across Lebanon with cash on delivery.