NUTRITIONAL FOUNDATION CALORIES - Four scoops provide 780+ calories when mixed with water.CARBOHYDRATES - 127g of carbohydrates fuel energy utilization during training and replace glycogen stores post-exercise. Carbohydrates also prevent the body from using protein as energy.PROTEIN - 50g of fast, medium, and slow-digesting protein per serving, providing fuel for working muscle, recovery, and maximum gains^*. POWER PLUS BLEND BETAINE - BETAPOWER, a patented betaine anhydrous, clinically dosed to support power and enhance athletic performance*.CREATINE BLEND - Creatine monohydrate and micronized creatine monohydrate join forces to fuel high intensity exercise and support muscle protein synthesis*.MYOTOR - An herbal blend of Sphaeranthus indicus Flower Head Extract and Mangifera indica Bark Extract, clinically proven to improve muscle strength with half the exercise in as early as 2 weeks^*.CREATINE PRECURSOR - This amino blend includes L-Arginine, L-Glycine, and Micronized L-Methionine, 3 precursors essential for creatine synthesis MICRONIZED AMINO ACIDS MICRONIZED L-GLUTAMINE - Glutamine, one of the most abundant amino acids found in muscles, is involved in protein synthesis. Intense exercise can contribute to the depletion of muscle glutamine stores by increasing the release of glutamine from muscle cells*.MICRONIZED L-ARGENINE - Arginine is a precursor for synthesizing nitric oxide, proteins, and creatine - key components for fueling performance and gaining mass^*.MICRONIZED L-LEUCINE - An essential amino acid, Leucine is crucial to regulating muscle protein synthesis, fueling muscle cells, and supporting protein balance^*. IMMEDIATELY Nutritional support you're meeting your macro goals with 50g high-quality protein, 780+ nutrient-dense calories, up to 130g of carbohydrates and healthy fats. A satisfying shake available in 4 delicious flavors to support your mass gaining and performance goals^*. 2-6 WEEKS With clinically proven MyoTOR, you can expect to see rapid performance results in as early as 2 weeks^*. With a high calorie diet and appropriate strength training program, plus 1-2 servings of Mass XXX^* per day the scale will start to move. Expect weight gain and muscle growth to the MaXXX^*. With the Power Plus Blend and Micronized Amino Acids, you'll feel beneficial muscle fuel for exercise during intense training. Experience max performance with 40% fewer sets^*. Plus, when taken post workout, you'll notice improvements in muscle recovery. Feel confident your training is paying off. 3-4 MONTHS & BEYOND The mass is on. You've met your gaining goals or are getting close! Consistency (and training) has paid off. You're feeling bigger, stronger, fitter and ready to accomplish your next fitness challenge! MASS GAINER PERFORMANCE THERMOGENIC TEST & POWER Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.6 out of 5 stars 421 4.6 out of 5 stars 168 4.5 out of 5 stars 1,037 4.4 out of 5 stars 1,251 Price $59.99$59.99 $69.99$69.99 $74.99$74.99 $74.99$74.99 BENEFIT CLINICALLY PROVEN STRENGTH AND MASS GAINER^* CLINICALLY PROVEN PERFORMANCE PROTEIN CLINICALLY PROVEN PROTEIN + THERMOGENIC CLINICALLY PROVEN PROTEIN + TEST & POWER CALORIES 780-800 200 200 200 PROTEIN 50G 40G 40G 40G BETAPOWER ✓ no data no data ✓ MYOTOR ✓ no data no data ✓ CREATINE ✓ no data no data ✓ AMINO ACIDS ✓ ✓ ✓ ✓ VELOSITOL no data ✓ ✓ ✓ ENZYME BLEND no data ✓ ✓ ✓ CAFFEINE no data no data ✓ no data FAQs WILL I GAIN MUSCLE MASS USING GNC AMP MASS XXX? GNC AMP Mass XXX was formulated and clinically proven to gain muscle mass when combined with a resistance training program and adequate calorie intake. Meeting your daily calorie goals to add muscle mass can be challenging, which is why Mass XXX helps you meet higher calorie needs. Plus it includes clinically studied ingredients to help enhance your bulking goals and improve performance. CAN WOMEN USE GNC AMP MASS XXX? Yes! While Mass XXX was clinically studied in men, the formula was designed to support muscle growth & performance gains for anyone looking to enhance their goals^*. SHOULD I USE IT BEFORE OR AFTER A WORKOUT? For best results, use 1-2x daily. On training days, consume one serving post-workout. On non-training days, consume 1 serving first thing in the morning or between meals as needed. DO I HAVE TO WORKOUT WHILE USING THIS PRODUCT? This product was intended to help your muscles recover and grow from your exercise program.
