Source Naturals Metabolic C Is Activated Vitamin C, Utilizing Advanced Pureway-C Suggested Use: 1 Tablet Up To Four Times Daily Well Made Supplement. Contains No Yeast, Dairy, Egg, Gluten, Corn, Soy, Or Wheat. Contains No Sugar, Starch, Preservatives, Or Artificial Color, Flavor, Or Fragrance Over 40 Years Of Trust. Source Naturals Was Created In 1982 By Ceo Ira Goldberg To Support Everyoneã¢ÂS Potential To Enjoy Optimal Health Manufactured In The Usa. Manufactured In Scots Valley, Ca, Under The Good Manufacturing Practices (Cgmps) Established By The Us Food And Drug Administration (Fda) The Strong Antioxidant Activity Of Metabolic C Is Upgraded Support For Your Immune System, Circulatory System, Liver, Joints, And Skin;May Improve The Uptake, Delivery, And Retention Of Vitamin C;Contains No Yeast, Egg, Gluten, Dairy, Soy, Or Wheat