Vitamin C helps some of our most important body systems. First and foremost, it helps the immune system to fight off foreign invaders and tumor cells. Vitamin C also supports the cardiovascular system by facilitating fat metabolism and protecting tissues from free radical damage, and it assists the nervous system by converting certain amino acids into neurotransmitters. Dynamic Health Laboratories Liquid Vitamin C with Natural Rose Hips & Bioflavonoids is an easy to swallow and well observed dietary supplement.