* HPLC Tested for Potency and Purity * Support Hormone Production * Promote Lean Mass * Maximize Restful Sleep * Natural, Non-Hormonal Formula * Dietary Supplement Primaforce ZMA features the patented ZMA formula from SNAC System, Inc., HPLC tested for the highest potency and purity. ZMA contains scientifically-proven ratios of zinc, magnesium and vitamin b6 and has been clinically shown to support healthy hormone production, promote lean mass, maximize restful sleep and does not contain any hormones or banned substances.