A to Z NS Drop is a combination of Minerals (Copper, Manganese, Selenium, Zinc), Vitamins (Folic acid, Methylcobalamin, Vitamin A, Vitamin B1, Vitamin B2, Vitamin B3, Vitamin B5, Vitamin B6, Vitamin C, Vitamin E) and L-lysine. Vitamins and Minerals enhance different immune functions and provides strong nerve support.