Serious Mass Size:8 Serves (2.72kg) ensuring a clean and pure

ensuring a clean and pure protein source

Each serving delivers 25g of high-quality protein with minimal fat and carbohydrates

or an intra-workout energy lifeline

Adrenal Switch fits seamlessly into your post-workout routine or nightly ritual

during or after workouts

Serious Mass Size:8 Serves (2.72kg) ensuring a clean and pureSerious Mass by Optimum Nutrition is a high calorie weight gainer formulated for individuals aiming to increase muscle mass and overall body weight. Each two scoop serving delivers approximately 1,250 calories, combining 50 grams of blended protein with 252254 grams of carbohydrates to support muscle recovery and replenish glycogen stores. The inclusion of 3 grams of creatine monohydrate per serving further aids in enhancing strength and power during