Instant Mass® Heavyweight is the best protein for weight gain. It is specifically designed for hardgainers and athletes who desire a high-quality source of proteins and carbohydrates. Heavyweight excels in five key areas with an exceptional combination of proteins.

Quattro® consists of three different types of whey protein along with pure micellar casein. The Quattro® composition includes special forms of protein for better absorption by the human body.

The amino acid offering includes:

• Two different hydrolyzed whey proteins for immediate absorption.
• Whey protein with low DH, for additional peptide supply.
• Selected whey protein with high levels of bioactive components.
• Pure ultra-filtered micellar caseins for long-term supply.

Heavyweight contains a unique blend of oats, maltodextrin, and trehalose, providing a serious source of fuel without corn syrup and simple sugars. Additionally, it contains Creapure creatine, zinc, magnesium, and vitamin D.

Each serving provides approved doses of vitamins and minerals to support a healthy immune system, including vitamins C and D and copper.