Zinc is important for a healthy immune system as well as healthy skin and energy production.  OptiZinc® is a patented 1:1 complex of zinc and 100% natural methionine, the amino acid that is best absorbed by the body and serves as an antioxidant. Studies show that OptiZinc® is absorbed better, retained longer, and is more effective than ordinary zinc supplements tested, and it resists binding with dietary fiber and phytate, organic compounds that inhibit zinc absorption. OptiZinc® brand of zinc mono-methionine (U.S. Patents 4,764,633 and 5,278,329) is a trademark of InterHealth Co.  ‡