Biotin, a B vitamin used as a coenzyme in the metabolism of proteins, fats and carbohydrates, has traditionally been used to strengthen brittle nails and improve skin elasticity. It has also been used to give hair more body and shine. Recent research has shown that when taken in high doses, typically 5 mg, biotin can improve the abilities of the trace mineral chromium picolinate (used by the body to regulate blood glucose). In such a high dosage, this B vitamin can become extremely versatile, assisting in proper metabolism, blood sugar control and for hair, skin and nails support.
Methylcobalamin (Methyl B-12) is better absorbed and retained than other forms of B12 (such as cyanocobalamin).* Methyl B-12 protects nerve tissue and brain cells, and promotes better sleep.* Methyl B-12 is an important cofactor that is needed to reduce toxic homocysteine to the essential amino acid methionine.* Methylcobalamin also protects eye function against toxicity caused by excess glutamate.* Also, vegetarians/vegans typically require B12 supplementation.*
NAD (B-Nicotinamide Adenine Dinucleotide) is the biologically usable form of Niacin (Vitamin B-3). NAD is present in all living cells as a cofactor for many biochemical reactions, playing a central role in cellular energy production. Thus, the more NAD available to the cell, the more energy it can produce. NAD and its reduced form, NADH, are readily converted by the body, but unlike NADH, NAD is not altered by the acids present in the stomach.