FRS contains Quercetin a powerful all natural antioxidant. Fuel up with amazingly delicious FRS Healthy Energy, formulated with ingredients proven to help provide natural sustained energy, fight fatigue and enhance performance, so that you as much energy at the end of the day as you did at the beginning. FRS Healthy Energy contains: Quercetin and Green Tea Catechins- Powerful antioxidants that together produce natural sustained energy and increase endurance. 7 essential Vitamins At least 130% RDI of seven essential vitamins. About FRS: Discover what elite athletes, pro sports teams and wellness gurus already love. Originally developed by health scientist trying to provide sustained energy for chemotherapy patients, FRS is powered by patented blend of natural antioxidants and vitamins. Together these ingredients work by naturally triggering your cells ability to produce sustained energy...so you can focus on increasing your stamina to maximize performance. Try FRS stamina to maximize your performance. Try FRS products and feel the difference yourself!