Spector, R. and Johanson, C. E. Vitamin transport and homeostasis in mammalian brain: focus on Vitamins B and E. J Neurochem. 2007;103(2):425-438. View abstract.

Biotin can support normal psychological function: from regulating our mood to learning a new skill, biotin can help keep our cognitive functions running smoothly. Albarracin C, Fuqua B, Evans JL, Goldfine ID. Chromium picolinate and biotin combination improves glucose metabolism in treated, uncontrolled overweight to obese patients with type 2 diabetes. Diabetes Metab Res Rev 2008;24:41-51. View abstract. Since regular Biotin supplementation may lead to Vitamin B5 (Pantothenic Acid) deficiency, the HealthAid® Biotin 5000mcg Capsules are fortified with high strength Vitamin B5, which contributes to the reduction of tiredness and fatigue, to the normal mental performance, to energy-yielding metabolism, and metabolism of steroid hormones (sex hormones and adrenal hormones), thus promoting hormonal balance in both men and women. Like Biotin, Vitamin B5 also promotes healthy hair, skin and nails. If you are pregnant, nursing, taking any medications or have any medical condition, please consult your healthcare practitioner before taking this product.

Shriver, B. J., Roman-Shriver, C., and Allred, J. B. Depletion and repletion of biotinyl enzymes in liver of biotin-deficient rats: evidence of a biotin storage system. J Nutr. 1993;123(6):1140-1149. View abstract.Biotin can support healthy hair: maintaining biotin levels helps to keep your hair healthy and looking good.

Dakshinamurti, K. Biotin--a regulator of gene expression. J Nutr.Biochem. 2005;16(7):419-423. View abstract. Most biotin supplements contain significantly higher amounts than the AI. The supplements on this list provide 830–33,333% of the DV for biotin. Fortunately, there’s no evidence that high doses are directly harmful ( 1). high-quality product. In reality, the person mentioned above was taking 10,000 micrograms of biotin, which is only For more on the Vitamin B family and what these vitamins do for the body, ‘What’s the best Vitamin B to take?’) How do you take biotin? Tsao, C. Y. Current trends in the treatment of infantile spasms. Neuropsychiatr.Dis.Treat. 2009;5:289-299. View abstract.Most people can take biotin supplements without experiencing any side effects. However, it is possible for people to take them and experience 13:

When taken at high doses, excess B vitamins are typically flushed out via your urine. However, it’s possible that there simply hasn’t been enough research on the potential side effects of taking too much ( 1). Biotin doesn’t appear to be linked to any notable side effects. Some people report skin rashes or digestive upset after taking a biotin supplement, but there’s currently no research on specific biotin side effects.The AI levels for biotin are believed to meet the needs of at least 50% of the population, until more research is conducted regarding biotin needs. Hill MJ. Intestinal flora and endogenous vitamin synthesis. Eur J Cancer Prev 1997;6:S43-5. View abstract. Said HM, Redha R, Nylander W. Biotin transport in the human intestine: inhibition by anticonvulsant drugs. Am J Clin Nutr 1989;49:127-31. View abstract. Bolander, F. F. Vitamins: not just for enzymes. Curr.Opin.Investig.Drugs 2006;7(10):912-915. View abstract.