Maximuscles Progain Extreme is the next generation of weight gainers & has been designed to deliver the most rapid gains in muscle mass & strength possible with a weight gainer. It contains ingredients & a formula based on the latest research into muscle growth & weight gain. Progain Extreme contains a massive 3g of free form & bound Leucine, which could be the most important amino acid when it comes to triggering new muscle growth. Youll also find 3g of Max Pure™ Creatine in every serving. If that wasnt enough, Progain Extreme also contains 3g of total Glutamine peptides, which is well absorbed by the body. Each serving of Maximuscles Progain Extreme contains an easy-to-digest 508 calories per serving & high amounts of whey protein giving you a whopping 41 grams of protein per serving. The weight gain supplement makes it easier than ever for hard gainers to get the calories & protein they need to support muscle growth. Take 1-2 servings of Progain Extreme every day in conjunction with your weight-training programme & youll soon experience the muscle & size gains youve been searching for.