Immune System HealthCritical for Collagen ProductionAntioxidant SupportWith Other Natural FlavorsDietary SupplementVegetarian/VeganKosherFamily Owned Since 1978HalalGMP QualityVitamin C is a water-soluble nutrient well known for its vital role in immune system function. It is also a highly effective antioxidant that can help maintain healthy tissues by neutralizing free radicals generated during normal metabolism and typical environmental exposures. Vitamin C is also critical for the production of collagen.