Ph D Fitness Overview Spawned from countless hours of research & testing on some of the freakiest mass monsters on the planet, Mutant Mass is a revolutionary, top secret experimental muscle mass gainer that delivers extreme, abnormal mass building results. If you re destroying the iron in the gym to build massive, MUTANT-like proportions of skin stretching muscle & inhuman strength then Mutant Mass is a must for your mass building arsenal. Highlights- Tastes fantastic- Contains 52 grams of blended protein- Made with whey isolate- Made with micellar casein- Great for hard gainers