Only one tablet of NOW Foods Vitamin C-1000 w/Rose Gips & Bioflavonoids will give you sufficient daily vitamin C for your body to function properly. It’s the best vitamin C supplement on the market, enriched with rose hip and bioflavonoids. These two ingredients work synergistically with vitamin C to boost your immune system. The formula will improve your cardiovascular health, boost collagen synthesis, improve neurotransmitter synthesis and help you maintain healthy skin, bones, and joint health.