MASS XXX™ with MyoTor® - Strawberry (13 Servings)
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GNC AMP Mass XXX™ with MyoTor® - Strawberry: Increase Lean Muscle Mass with 40% Fewer Sets▀*
• 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*⬦.
■In an eight-week, randomized, double-blind, placebo-controlled study of healthy male volunteers, 18 subjects completed 3 sets of resistance training (RT) daily + the macronutrient blend in Mass XXX™, and 16 subjects performed 5 sets RT daily with no supplement. After eight weeks, subjects on the supplement showed equal gains in body weight, fat free mass (FFM), maximal muscle strength (MMS) and muscle endurance (ME) with only 3 sets RT per day compared to the control group who completed 5 sets RT per day.
^When used in conjunction with an exercise program.
•In a 8-week randomized, double-blinded, placebo-controlled study of 118 healthy men participating in a supervised resistance training program showed that those taking MyoTOR® had significant increase in upper body strength (49.7 lb. vs. 19 lb.), mean lower body strength (42.1 lb. vs. 19,2 lb.) and muscle endurance after 8 weeks vs. those who took the placebo with the same exercise. Improvements in strength were seen in as early as 2 weeks. Men on MyoTOR® had greater improvements in muscle strength and upper body endurance vs. those who took a placebo but exercised twice as much.
⬩An 8-week randomized, double blind, placebo-controlled study of 40 healthy men participating in a voluntary exercise routine showed that those taking MyoTOR® had significant improvements in upper and lower body strength, muscle endurance, arm circumference and lean body mass vs. those on a placebo after 8 weeks Improvements in strength were seen in as early as 2 weeks.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
⬦Product was tested for over 220 banned substances on the 2020 World Anti-Doping Agency (WADA) Prohibited List via LGC skip lot testing protocol #ICP0307.
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Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Soy Protein Isolate), Medium Chain Triglicerides , Natural and Artificial Flavors, Lecithin, Sucralose, Acesulfame Potassium, FD&C Red #40 Contains: Milk and Soybeans
As a dietary supplement mix 4 scoops, (210g) with 16 fl. oz. of cold water or your favorite beverage. Consume 1-2 servings daily. On training days, consume post-workout. On non-training days consume first thing in the morning or between meals. Consume ample amounts of water while taking this product.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov., Notice: Product sold by weight not volume. Significant product settling may occur. , Keep out of reach of children.
Store in a cool and dry place.
General Nutrition
Corporation
Pittsburgh, PA 15222
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Generally, if you are shipping within the United States, you will have the option of upgrading your shipping method for faster delivery (Ground, Third Day, Second Day or Overnight Service). If you choose to upgrade your shipping method, your order must be received and clear credit authorization by 4:00 p.m. EST or your order may not be processed until the following business day. Business days are Monday-Friday, excluding observed holidays within the United States.
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- Please call a Customer Service Specialist at 1-877-GNC-4700 if you have any questions.
We want you to be fully satisfied with every item that you purchase from www.gnc.com or from an Authorized GNC Retailer. If you are not satisfied with an item that you have purchased, you may return the item within 30 days from the order date for a full refund of the purchase price, minus the shipping, handling, gift wrap, or other charges.
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Our Standard Return policies do not apply to all items. For a list of exceptions to our Standard Return policies click here.
•Carbohydrates – 127g of carbohydrates fuel energy utilization during training and replace glycogen stores post-exercise. Carbohydrates also prevents the body from using protein as energy.
•Protein – 50 grams of fast, medium, and slow-digesting protein per serving, providing fuel for working muscle, recovery, and maximum gains^*.
•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 protein 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 creatinine synthesis.
•Micronized L-Arginine – 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^*.
-Shawn S. Verified Purchaser
-Walter F. Verified Purchaser
What to expect taking Mass XXX
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is Right for You
MASS GAINER
PERFORMANCE
THERMOGENIC
NEUROSURGE
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 GNC AMP Mass XXX™ helps you meet higher calorie requirements. Plus it includes clinically studied ingredients to help enhance your bulking goals and improve performance.
Yes! While GNC AMP Mass XXX™ was clinically studied in men, the formula was designed to support muscle growth and performance gains for anyone looking to enhance their goals^*.
For best results, use 1-2 times daily. On training days, consume one serving post-workout. On non-training days, consume one serving first thing in the morning or between meals as needed.
This product was intended to help your muscles recover and grow from your exercise program. It also includes ingredients to improve performance benefits. So, yes! Exercise is a critical tool to combine with this product. However, you can consume GNC AMP Mass XXX™ on non-training days to meet your calorie goals.