Zinc picolinate is a chelated form of zinc salt, combined with picolinic acid from the amino acid tryptophan. Zinc supplements may have a beneficial effect on: Immune system health Skin health Connective tissue health Child development Reproductive health Nerve health Eye health The prostate gland in men contains the highest amount of zinc of all soft tissues. Adequate zinc levels support prostate health and the bodys normal production of testosterone. The skin has the third highest amount of zinc of any organ in the body. Zinc plays an important role in wound healing due to its beneficial effect on supporting the immune system, collagen synthesis and its natural restorative action.