Biotin is essential to convert carbohydrates to energy, and is involved in the proper metabolism of fats and protein. Plus, adequate biotin levels are needed for healthy nervous system function. Niacin helps support healthy cholesterol levels already within normal limits, and raises good (HDL) cholesterol. Thiamin supports healthy nerves and muscles, including muscles of the cardiovascular system. Biotin Forte? helps maintain blood pressure levels already within normal limits B-vitamins convert undesirable homocysteine into methionine, a helpful amino acid that protects cells and supports nerve signals. Biotin Forte?includes vitamin C for extra benefits B vitamins and vitamin C work together to nourish strong nails, healthy hair, and skin. Biotin Forte? is backed by clinical research This formula has been studied for its beneficial effects for nervous system and circulatory system health.