Liquid zinc sulfate was first developed by Dr Bryce Smith for the treatment of anorexia, a condition whereby the ‘zinc blockade’ exists causing a defect in the mucosal absorption mechanisms dependent on zinc. T J Clark’s catalysed zinc is the most advanced zinc supplement, providing zinc sulfate in a colloidal form with the addition of a mineral catalyst. Our catalyzed zinc is recognised as the most reliable form of zinc to replenish zinc levels, regardless of an individual’s mucosal absorption ability. T J Clark’s catalyzed zinc is flavoured for optimal patient compliance and is the only liquid zinc supplement available through health stores.