International Protein Extreme Mass Plant Omegas Arginine & Lysine to support

Arginine & Lysine to support protein synthesis and hormone balance

Mixes easily in water with no clumping or gritty texture

tunnel vision focus

Skullcap & Magnesium for calm

International Protein Extreme Mass Plant Omegas Arginine & Lysine to supportInternational 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