Numerous double-blind, placebo-controlled university studies have show creatine monohydrate supplementation may boost muscle size and strength, increase lean body mass, delay fatigue, and speed muscle recovery after exercise. Creatine may also "super-hydrate" or volumize your muscle cells to further stimulate protein synthesis and decrease protein breakdown. Make no mistake; volumizing isn't about water retention, which happens outside the cell. Your muscles really are getting bigger, fuller, rounder-from the inside out. This could enhance muscularity and create an improved environment for muscle growth. What's more, studies show that when weight-training athletes start supplementing with creatine, they gain lean body mass and strength fast-sometimes within a week! No wonder creatine is considered the "must-use" sports supplement by experts worldwide.