Clinically Studied Multivitamin Antioxidants: More antioxidant power than ever and over 30 clinically studied ingredients in every formula - all in smaller, easier-to-swallow pills. Packed with antioxidants to help fight free radicals that can be produced during your workout. Men's Health: Contains a clinically studied men's Multivitamin shown to work better than a basic Multivitamin. Performance: Features beta-alanine, a high-efficiency muscle pH buffer, and carnitine, which helps use fatty acids as energy. Muscle Function: Features branched chain amino acids to fuel muscles. Also supports muscles by providing essential electrolytes that may be lost during intense exercise, including calcium, which plays a role in mediating muscle contraction.