🚀 Fuel your gains, fast-track your strength, and own the gym grind!
GNC AMP Mass XXX is a clinically proven mass gainer delivering 780+ calories, 50g of high-quality protein, and 127g of carbs per serving. Featuring MyoTOR, creatine blends, and BETAPOWER, it accelerates muscle strength and endurance improvements in as little as 2 weeks. Tested against 220+ banned substances, this formula supports efficient muscle growth with 40% fewer sets, making it the go-to choice for serious athletes and fitness professionals aiming for rapid, clean mass gains.
| ASIN | B091D1L7K4 |
| Age Range Description | Adult |
| Best Sellers Rank | #200,077 in Health & Household ( See Top 100 in Health & Household ) #74 in Sports Nutrition Weight Gainers |
| Brand | GNC |
| Brand Name | GNC |
| Customer Reviews | 4.8 out of 5 stars 166 Reviews |
| Flavor | Vanilla |
| Item Dimensions | 7.99 x 7.99 x 12.4 inches |
| Item Weight | 2724 g |
| Manufacturer | GNC |
| Manufacturer Part Number | 123405 |
| Model Number | 123405 |
| Number of Items | 1 |
| Package Type Name | Canister |
| Product Benefits | Supports overall health and wellness by providing essential nutrients and targeted ingredients for daily vitality and specific health needs. Product Benefits Supports overall health and wellness by providing essential nutrients and targeted ingredients for daily vitality and specific health needs. See more |
| Protein Source | Casein, Soy, Whey |
| Recommended Uses For Product | Post-Workout |
| UPC | 048107213763 |
| Unit Count | 96 Ounce |
T**N
Great value for the price, good taste, and it works!
I spent 30 years in the military training with both body and free weights. After retiring a few years ago, I slowly started working out less and drinking more (alcohol). After about 2 years I lost almost 20lbs. I finally decided to get in better shape and return to lifting heavy. In 3 months, I went from 172lbs to 186.4lbs using this product. I limit my dose to 3 scoops, 3 days a week. Definitely worth the money and it works!
D**A
Muy bueno
Realmente me gusta mucho esta proteina desde su sabor hasta el resultado que produce en el volumen del cuerpo recomendado
E**N
Cheaper than the store
Works really well
M**L
Protein
Great value/ Great product
S**E
could be cheaper to buy
Perfection but the price could be a lot cheaper
T**R
Good for the price
Delicious
J**Z
Great Mass Gainer
This stuff works great! I was using True Mass prior to the XXX. The XXX is much better product. The ingredients inside out perform the other brands that I’ve used. I have read comments of people saying the taste consistency is terrible, and I have no clue what they are talking about. Tastes great! Same consistency and taste as any other Mass Gainer protein shake if you have ever had one. I have been on XXX a little over a month and already seeing great results. I would recommend this product all day
L**T
Awesome
Mass xxx is a good formula with lots of good things to offer different people I would recommend
Trustpilot
1 week ago
3 weeks ago