Performance Powders

If you are one of those people who have a tough time packing on solid, powerful mass, try MET-Rx® Xtreme Size Up®, specially designed for hard gainers who want to gain weight and pack on mass.* MET-Rx® Xtreme Size Up® features four optimizer blends to help you keep growing!* Our specially selected nutrients are designed to meet your body's needs for both immediate and sustained energy and protein synthesis.*

Ratio of leucine, valine and isoleucine (45/30/25). Branched chain amino acids may be the most important amino for exercise and recovery as they work directly within muscle to regulate protein synthesis at the generic level.* BCAAS can also increase nitrogen retention and can be used as an energy source to fuel exercise.*

MET-Rx® Creatine Powder is made up of creatine monohydrate, which helps promote exercise performance, helps promote athletic performance and helps increase strength and power.*

MET-Rx® L-Glutamine Powder is an amino acid supplement often used by active men and women, bodybuilders and athletes. Glutamine levels may decrease with intense training and exercise. It is important to replenish depleted glutamine levels in the body with the proper supplementation in order to effectively support your recovery after exercise.*