Isotonix ATX Formula Powder contains a combination of beta-carotene, vitamins C and E, and the mineral selenium. Isotonix ATX Formula Powder can help promote metabolism. Beta-carotene helps maintain eyesight in low light conditions. Vitamin C is an antioxidant. Vitamin E helps to reduce free radicals. Vitamin B2 helps to maintain normal energy metabolism. Isotonix products are isotonic when specified amounts of powder and water are used. Isotonix products can offer you fast absorption and great results.