Mass Gainer is a powerful weight-gain formula loaded with enough nutrients to help you pack on the size!
Build solid muscle mass! Opto Mass Gainer features 40 grams of protein enriched with EAAs, BCAAs, and glutamine to help build and repair your hard-working muscles. This powerful formula is loaded with nutrient-dense calories derived from high-quality, fast, medium, and slow-digesting proteins and healthy fats. Energetic complex carbohydrates will give you quick-burning fuel to satisfy your energy demands. Digestive enzymes will assist digestion of the protein and make it readily available to your muscles.