Solgar's ESTER-C PLUS 500mg is a dietary supplement featuring a potent formula designed to deliver the numerous advantages of vitamin C in a gentler, more digestible format that maintains a neutral, non-acidic pH. The components in Ester-C Plus work to improve the retention of vitamin C within the immune system's cells, thereby bolstering immune response. This unique formulation also incorporates natural plant-derived bioflavonoids, which are commonly found alongside vitamin C in various fruits and vegetables. • This non-irritating variant of vitamin C is easily absorbed and reduces digestive issues. • It promotes immune health, staying effective in immune cells for as long as 24 hours. • Acts as a powerful antioxidant. • Aids in the normal production of collagen, essential for the good health of bones, teeth, skin, and cartilage. • Assists in alleviating fatigue and tiredness. • Enhances the body's ability to absorb iron.