This document contains summaries of multiple studies on creatine and BCAA supplements. It summarizes several key findings from the studies: 1) Creatine supplementation combined with strength training increases muscle fiber growth more than training alone by amplifying satellite cell and myonuclei concentration. 2) A meta-analysis found creatine improves body composition and resistance training performance regardless of gender or experience. 3) Studies on soccer and volleyball players found creatine maintained jumping power and block jump height during fatigue when compared to a control group. 4) Post-workout creatine led to better strength and body composition gains than pre-workout in one study.