If you've ever had trouble really growing, or had trouble maintaining your hard-earned size, this product was designed specifically for you. Cyto Gainer provides large portions of ultra high-quality whey proteins and complex carbohydrates without the fat and sugar. Cyto Gainer is ideal for both beginner and advanced lean muscle mass needs. If you're like most of us, you get plenty of fat and sugar in your diet, and you certainly don't have to supplement to get more of either. Cyto Gainer contains the highest quality whey and whey peptides and is 98% lactose free. Cyto Gainer contains glutamine-rich, partially pre-digested whey peptides for a full array of branched-chain amino acids and enhanced protein synthesis. Each serving also contains whey fractions shown to help increase IGF-1 (insulin-like growth factor). Your body's responses to these whey fractions, along with the branched-chain aminos found in Cyto Gainer, are primarily responsible for muscle growth. With no simple sugars, no fructose and no sucrose, Cyto Gainer's highly complex maltodextrins are specifically designed to give you a time release energy effect. Cyto Gainer will replenish muscle and liver glycogen after your muscle-thrashing workouts so you can pack on lean mass!