* Official Nutritional Supplement of the UFC * Core Series * Dietary Supplement * Supports Natural Testosterone Levels & Muscle Strength * Promotes Deep Sleep & Recovery * Supports Healthy Libido Function * 60 Servings * Fueling Athletes Safely Demand More of Your Body—And Get Z-Core PM MusclePharm Z-Core PM promotes deeper and more efficient sleep to maximize healing, tissue repair, anabolic hormone production, testosterone levels and muscle growth. It delivers the benefits of precise dosages and Z-Core PM ingredient ratios, and adds the synergistic effects of fenugreek to support natural levels of free testosterone and healthy libido function in women and men.