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MET-RX Xtreme Size Up

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Protein, Creatine, Glutamine, Calories And Carbs To Pack On Muscle!
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Protein, Creatine, Glutamine, Calories And Carbs To Pack On Muscle!


Xtreme Size-Up is specially designed for hard gainers who want to gain weight and pack-on quality mass. MET-Rx Xtreme Size Up features FOUR Hardcore Optimizer Blends to help you keep growing when other weight gainers quit. Each serving of Xtreme Size-Up contains 59g protein, 64-67g High-Quality Complex Carbs, 3g Creatine, 3g Glutamine and 600 calories. Xtreme Size-Up contains no fructose or aspartame. Xtreme Size-Up gainer mixes quickly and goes down easy.


Note: Manufacturers continually change product specifications. While we try our best to keep product descriptions up to date, they do not necessarily reflect the latest information available from the manufacturer. We are not responsible for incorrect or outdated product descriptions and/or images.

  1. Quality
    Best one
    I’ve tried a few protein powders. I keep coming back to this one . Best taste by far and is a complete protein supplement.
  2. Quality
    Great results & Taste good!
    Both flavors are good.

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