Bio-Gro is a true "game-changer" from iSatori. The first to introduce a new breed of designer supplementation called Bio-Active Peptides. You can think of Bio-Gro as "fertilizer for your muscles." The ultra-concentrated BioPro Bio Active Peptides found only in Bio-Gro work best when taken daily and should be the base of any serious trainer’s program. Bio-Gro is the true catalyst to help drive lean muscle growth.