Dietary Supplement. Maximize Natural Testosterone: Enhances - Muscle size and strength; Muscle hardness; Male potency. Performance/Power. Scientifically formulated combination of 6-OXO, Tribulus, and ZMA to kick-start your body's own production of testosterone. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.)