GNC AMP Mass XXX Protein Powder | Targeted Muscle Building and Workout Support Formula | Chocolate | 13 Servings

CLINICALLY PROVEN STRENGTH AND MASS GAINER: GNC AMP Mass XXX mass gainer combines high-quality protein powder, key nutrients, and science-backed innovations—including MyoTOR, creatine, and BETAPOWER—to fuel proven results and performance.

INCREASE LEAN MUSCLE MASS WITH 40% FEWER SETS: Mass XXX's macronutrient blend delivers 50g of protein, including naturally occurring EAAs, plus carbs, and healthy fats—and it's clinically proven to help get better results out of workouts.

IMPROVE MUSCLE STRENGTH IN AS EARLY AS 2 WEEKS: MyoTOR is clinically proven to accelerate improvements in strength with as little as 2 weeks of training and included in every serving of Mass XXX mass gainer.

ENHANCED FOR IMPROVED STRENGTH AND STAMINA: Take resistance training to a new limit with MyoTOR's clinically studied support for improved muscle endurance and BETAPOWER's athletic performance benefits.

BANNED SUBSTANCE TESTED: Unlike most mass gainers with proprietary blends, Mass XXX is certified Banned Substance Tested and formulated to help you gain mass without compromising your goals.

Four scoops of Mass XXX provide over 780 calories, 127g of carbohydrates to fuel energy utilization and replenish glycogen stores, and 50g of fast, medium, and slow-digesting protein to support muscle recovery and growth. The Power Plus Blend includes clinically dosed BETAPOWER to enhance athletic performance, a creatine blend to fuel high-intensity exercise and muscle protein synthesis, and MyoTOR to improve muscle strength with half the exercise in as little as 2 weeks.

The Micronized Amino Acids in Mass XXX include L-Glutamine, L-Arginine, and L-Leucine, which are crucial for protein synthesis, nitric oxide production, and regulating muscle protein balance. With the convenient, satisfying shake available in 4 delicious flavors, Mass XXX supports your mass gaining and performance goals.

In as little as 2 weeks, you can expect to see rapid performance results with the clinically proven MyoTOR. Combining a high-calorie diet, appropriate strength training, and 1-2 servings of Mass XXX per day, you'll start to see weight gain and muscle growth. The Power Plus Blend and Micronized Amino Acids provide beneficial muscle fuel for intense training, and you'll notice improvements in muscle recovery when taken post-workout.

Consistency and continued training will pay off, and in 3-4 months, you'll feel bigger, stronger, and fitter, ready to conquer your next fitness challenge. Mass XXX is a clinically proven strength and mass gainer, clinically proven performance protein, clinically proven protein + thermogenic, and clinically proven protein + test & power, all in one convenient supplement.

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