High-dose dietary supplement with vitamin C AAVALABS Vitamin C is a high-dose dietary supplement that provides 1,144% of the NRV (Nutrient Reference Value) of Vitamin C per serving (2 capsules). Vitamin C makes an essential contribution to the daily requirement. The Vitamin C it contains is derived from superfoods such as acerola, camu camu, and rosehip. The capsules also contain bioflavonoids from citrus fruits. The vital vitamin C contributes to the normal function of the immune and nervous systems, among other things. It also plays an important role in iron absorption. The human body cannot synthesize vitamin C itself and therefore it must be obtained through food. AAVALABS Vitamin C capsules are free from unnecessary preservatives, artificial colors, sweeteners and are also 100% vegan.