Biotin is a water-soluble B vitamin that is an essential co-factor for a number of metabolic carboxylation reactions involved in metabolism. Recent studies have expanded biotin's metabolic role, claiming that the vitamin maintains healthy genetic expression of the many enzymes for which it is a cofactor. Clinical studies have indicated that biotin may adjust the cellular arrangement of the nail bed, helping to reinforce the keratin structure, support strength and thickness, and reduce splitting. At Pure Encapsulations, we're dedicated to providing nutritional supplements you can trust. That’s why our products are formulated using high quality, pure ingredients FREE FROM unnecessary additives and many common allergens, and backed by verifiable science. Everything you need and nothing you don't, that’s goodness encapsulated. When developing our products, we work in close collaboration with leading medical professionals and nutritional experts to create premium dietary supplements that you can feel good about. We source high-quality ingredients from the best suppliers, conduct research and clinical trials to confirm efficacy and safety, and undergo additional testing by accredited and cGMP-certified laboratories to ensure product purity and potency. We also believe in transparency, so every ingredient we put into our products, even if it’s just a trace amount, is listed on the label. If there’s an ingredient sourced from a possible allergen—we call that out too.