Medi C Unflavoured with Calcium helps us supplement Vitamin C and Lysine. Vitamin C and Lysine work together to help build collagen, this strengthens and holds together our coronary cells. build collagen, which strengthens and holds together the coronary cells. Inadequate amounts of vitamin C mean poor collagen. Medi-C Plus produces healthy collagen, dissolves cholesterol deposits, reduces the risk of cardiovascular disease and increases the blood flow to coronary arteries.