International Protein Extreme Mass Sleep support and reduced muscle breakdown

and reduced muscle breakdown

while patented Calci-K® and TRAACS® ensure optimal muscular endurance and performance

or managing carb intake

Beta-Alanine (CarnoSyn®) – Buffers lactic acid to improve endurance

competitive athletes

International Protein Extreme Mass Sleep support and reduced muscle breakdownInternational Protein Extreme Mass High Calorie Lean Mass Gainer. If you're a hard gainer or someone needing serious fuel for muscle growth, Extreme Mass by International Protein delivers what your body demands. This dangerously anabolic mass gainer combines 5 high quality protein sources with multi phase carbs and performance fats like MCTs to drive serious size and strength gains. Designed for athletes with fast metabolisms or demanding training