BAD ASS® MASS. Food supplement. With sweetener. New generation gainer. Mass gainer powder for preparing a nutritional protein and carbohydrate drink enriched with creatine and L-glutamine. Designed for adults performing high intensity excercise. Protein contributes to the growth and maintenance of muscle mass. Creatine increases physical performance in successive bursts of short-term, high intensity exercise, beneficial effect is obtained with a daily intake of 3 g of creatine.