Advanced Muscle Mass Gainer!
Designed For The Hardgainer!
8.8 out of 10 (242 Reviews)
1 Size
7 Lbs.
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5 Flavors
Birthday Cake
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Price: $44.79 ($3.20 / Serving)
Flavor Rating:
Buy 2 Get 1 Free
For a limited time, buy 2 MASS-TECH, 7 Lbs. & get 1 FREE!

Product Overview







Muscletech Mass-Tech - Scientifically Superior Mass Gainer




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Designed for the hardgainer*
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multi-phase protein system
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build mass & strength*



MASS-TECH® features 63g of protein, which supplies fast-, medium-, and slow-digesting proteins. The multi-phase protein system provides critical amino acids to the body at varying speeds for extended delivery of amino acids in the blood.

13g BCAAs

The formula’s protein dose supplies a massive 13g of BCAAs and 6.5g of L-Leucine, which help fuel your skeletal muscles, preserve muscle glycogen stores, and help to reduce the amount of protein breakdown.*


The powerful formula now delivers a massive 840 calories derived from high-quality protein and quickly digested carbohydrates. It is the most versatile weight gainer available, which can be taken once daily or split into two separate half servings.

132g CARBS

Supplies 132g of carbohydrates through a multi-phase carb complex to spike insulin within a normal range, quickly shuttling creatine into the muscle, and promote muscle glycogen replenishment, helping to put the body into an anabolic state.*


Unlike other leading gainers that contain little to no creatine, MASS-TECH® delivers a 10g clinically validated dose to increase strength fast.*


An 8-week study examined the addition of 2,000 calories (over 2,000 calories are found in 2 servings of MASS-TECH® each mixed with 2 cups of skim milk) to a high-protein diet containing approximately 2,300 calories and a weightlifting program. On average, subjects gained 6.8 lbs. of mass while control subjects gained 1.3 lbs.

Mass-Tech 8-Week Study


In the same study noted above, test subjects also gained massive size where it matters most – directly on their chest and arms. They gained 1.2 inches on their chest and 0.5 inches on their arms versus the control group, which only added 0.5 inches and 0.2 inches.

Mass-Tech 8-Week Study


MASS-TECH® is a powerful weight-gain formula developed with key massbuilding compounds that are shown in research to help increase size, strength and overall mass.*

Calories 1000 kcal 710 kcal 1250 kcal
Protein 63g 50g 50g
Leucine/BCAAs 5g/10g YES YES
Fat 9g 17g 4.5g
Sugar 8g 14g 20g
Carbohydrate Mix
Creatine 10g NO 1g

Ratings & Reviews

Overall Rating
242 Ratings
Verified Buyer Rating
51 Ratings
Average Flavor Rating
5 Flavors
Top Rated Flavor
Cookies and Cream
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
  • 1 Milk Chocolate

I tried to drink this by taking the positive reviews into consideration but I simply cant. One of the worst tasting "chocalate flavor" ever, the smell and taste made me gag so bad. I cant even do 2 scoops let alone 5 scoops and had to throw it away as I simply cant finish the revolting mixture. I literally struggled to drink this.

Verified Buyer
  • 6 Milk Chocolate

Started using the product have yet to see a result from this product as I have given it some time. Very dissappointed.

Verified Buyer
  • 10 Milk Chocolate


Verified Buyer
  • 10 Birthday Cake
  • 8 Strawberry

Mass Tech was one of the 1st mass gainers I used and idk why I kept trying to shop around when I got such great results the first time I used it. This time it was on sale so I bought 2 tubs and 3 weeks in along with a scheduled eating regimen I've already gained 5lbs and some of my pr's have increased. It mixes great all u have to do is give it a good shake. The birthday cake flavor is awesome. The only reason I gave it a 9 is because like most mass gain products the serving size is ridiculous. I usually cut it in half and take one post workout and my other one before bed.

Verified Buyer
  • 9 Cookies and Cream

Havn't been on this long enough to tell what kind of results I'm getting but I like this mass gainer more than my previous one, ON Serious Mass. I got the cookies and cream flavor and I love it.

Verified Buyer
  • 1 Strawberry

Seriously do not make the same mistake I did, DO NOT buy the strawberry flavor. My apologizes for writing two reviews, I couldn't figure out a way to edit my initial review. I gave the milk chocolate flavor a 1/10 but compared to the strawberry it is at least a 5/10. I couldn't even finish one serving of this strawberry flavor, it definitely was a waste of money. I don't recommend this flavor to anyone. I am honestly going to move onto another product because I am very disappointed in all the tastes of the mass tech gainers. I love the profile and strength and size gains I have had with them (chocolate and cookies and cream), but I don't want to continue to struggle to get down the mass gainers everyday.

  • 1 Milk Chocolate

This is the worst tasting chocolate flavor ever i cant belive anyone can drink this without vomit reflexes.

Verified Buyer
  • 8 Vanilla
  • 9 Birthday Cake

This is one of, if not the best mass gainer on the market. Perfect as a lean gainer. However it's now the old formulation. Wonder how long until the new formula is available here.

  • 10 Milk Chocolate

I was looking for increasing my mass. I have used this product along with proper diet, workouts and it showed very good results. I took only 1.5 scoops with 250 ML milk per day. Mixes well with cold milk. Taste is good. No bloating sensation. I would suggest people looking for increasing their mass to go for it.

Verified Buyer
  • 1 Milk Chocolate

This product tastes sooo bad and you can bearly mix it in a shaker cup. Plus its so thick, its like drinking pancake mix. It seems like there is plenty of great ingrediants but man i had to send the bottle back. I would definitely not buy this again

  • 9 Milk Chocolate

This product helped me gain mass without adding body fat. As someone who is generally lean it can be difficult to bulk up without adding body fat. When I took this I kept to my strict eating regimen and was able to actually see some results.

Verified Buyer
  • 1 Vanilla

Solid product that does add some extra weight and strength, however i have to caution against the Vanilla flavour, its horrible! I have to add banana, chocolate protein powder, PB anything to kill the taste of the vanilla. At most i can do is 3 scoops in a shake, any more than that and its way to overpowering.

  • 9 Milk Chocolate

This is a solid product that will keep you fuller longer. It just feels like it awakens you to help get you going. Its one of the staples in my regimen and haven't even considered looking at another product

  • 9 Birthday Cake

This product works very well. 1-2 scoops a day and I have noticed an increase in size after a few weeks! Will take again

  • 10 Milk Chocolate

This product is great for anyone trying to pack on the mass.

Buy 2 Get 1 Free
7 Lbs.
7 Lbs.
14 Servings | $3.20 Per Serving

What's in MuscleTech MASS-TECH

7 Lbs. Birthday Cake
Serving Size: 5 Scoops (234g)
Servings Per Container: Approx.14
1 Serving with 16oz. Water Amount Per Serving % Daily Value
Calories 830       
Calories From Fat 50       
Total Fat 6 g 9%*
Saturated Fat 3 g 15%*
Cholesterol 200 mg 67%
Total Carbohydrates 132 g 44%*
Sugars 13 g
Protein 63 g 126%*
Calcium 645 mg 65%
Iron .8 mg 4%
Sodium 440 mg 18%
Mass-Tech® Co-Factors
L-Glutamine (as whey protein, calcium caseinate, egg albumin, L-glutamine) 10.4 g
Creatine Monohydrate 10 g
L-Leucine (as whey protein, calcium caseinate, egg albumin, L-leucine) 6.5 g
L-Isoleucine (as whey protein, calcium caseinate, egg albumin, L-isoleucine) 4.1 g
L-Valine (as whey protein, calcium caseinate, egg albumin, L-valine) 3.4 g
Enzyme Digestion Complex
Papain 50 mg
Amylase 50 mg
* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value not established.
Other Ingredients:
Multi-Phase Carb Complex (Glucose Polymers, ModCarb™ [Oat Bran, Quinoa, Buckwheat, Millet], Isomaltulose), Multi-Phase Protein System (Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Whey Protein Isolate 97%, Hydrolyzed Whey Protein, Whey Protein Isolate), Sprinkles (Sugar, Corn Syrup, Corn Cereal, Corn Starch, Hydrogenated Palm Oil, Natural and Artificial Flavors, FD&C Red No. 40, FD&C Yellow No. 6, FD&C Blue No. 1, FD&C Yellow No. 5), Natural And Artificial Flavors, Calcium Carbonate, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Soy Lecithin, Acesulfame-Potassium, Sucralose, Medium Chain Triglycerides.
Contains milk, soy, egg and coconut ingredients. Processed in a facility that also processes peanut, tree nut, fish/crustacean/shellfish oil and wheat ingredients.

Directions For MASS-TECH: Mix 1 serving (5 scoops) with 16 oz. (470 mL) of water or skim milk and consume either in the morning, between meals or post-workout. If preferred, you can consume 1/2 serving twice daily. Read the entire label before use and follow directions provided. Drink 8 to 10 glasses of water daily for general good health.

Warnings: Not intended for use by persons under 18. Do not use if pregnant or nursing. Consult a medical doctor if you have a medical condition or before starting any diet or exercise program. KEEP OUT OF REACH OF CHILDREN.

* 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.
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