Provides a gradual supply of vitamin C throughout the day to help reduce the severity and duration of colds.Features and benefits, Specifically formulated to release slowly over a sustained 8 hour period, ensuring that vitamin C is available when you body needs it. The sustained release system used by Blackmores is based on a unique plant gum matrix, using guar gum from the seeds of a legume, Contains citrus bioflavonoids extract to boost its action in the body, Low-acid formulation buffered with mineral ascorbates makes it gentle on the stomach, Helps to reduce the severity and duration of colds, Supports skin suppleness and elasticity via its role in collagen production, As a potent antioxidant it helps to reduce the risk of cell damage attributed to free radicals, Promotes wound healing, Helps to maintain capillary health