International Protein: Extreme Mass

Amplify your size with International Protein Extreme Mass — the high-calorie mass gainer engineered for serious muscle growth and lean size gains.

• Multi-phase 5-protein blend featuring whey peptides, isolates, casein & egg to maximise muscle repair & growth

• High-energy caloric matrix with complex carbohydrates and MCT oils for sustained fuel

• Designed for lean mass gain without the fluff — built for hard gainers and serious training

• Delicious flavour options and easy mixability for daily convenience

• Ideal for bulking phases, hard training days or athletes needing extra calories

Build mass. Stay lean. Train hard.