Black Market GlutamineL Glutamine is a go to ingredient in the weightlifting and athletic worlds to improve recovery and reduce muscle soreness. The most common amino acid found in your muscles, L Glutamine is also an essential neurotransmitter in the brain that helps with memory, focus, and concentration. L Glutamine plays a major role in protein synthesis and repairing muscle fibers after your toughest workouts.* 300 grams per bottle 5 grams per serving 60 servings per