Est. 1973 Patented 24 Hour Support +Immune System Dietary Supplement Lab Verified Nutrition A Brighter Way Since 1973, we've scoured the globe for the highest quality ingredients, connecting you with the most efficacious supplements that help you live brighter and embrace the moments that matter most. Discussion: Reacta-c is a 24-hour support formula that delivers Vitamin C to the body for greater immune support! This is a non-acidic formula designed to be fast-acting, long-lasting and gentle on the stomach. Key ingredients, such as Bioflavonoids, Indole-3-Carbinol, and a highly synergistic Vitamin C support base, are included for maximum bioavailability and effectiveness.