True-Mass Weight Gainer

True-Mass Weight Gainer

A true mass gainer for athletes who need a higher caloric intake to build muscle and add weight with improved macros for gains.*
With a 2-to-1 ratio of carbohydrates to BSN proteins, 17g of Fat, and a muscle building amino acid matrix; BSN True Mass targets macros for growth and adds healthy fats compared to fast acting carbs made of pure maltodextrin powder filler.*
9.1  out of 10  (591 Reviews)
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Product Overview

BSN Bottle

Mass Gainer

  • Muscle Size & Strength*
  • Energy Yielding Metabolism*
  • Exercise Recovery
  • Weight Gain Objectives

Push your performance past previous barriers.

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Ultra-Premium Protein/Carbohydrate Matrix

TRUE-MASS® is an ultra-premium lean mass gainer, designed to support muscle growth and muscle recovery for athletes with above normal caloric needs.* The formula behind TRUE-MASS® features a 2-to-1 ratio of workout-fueling carbohydrates to muscle building protein, with 90 grams of carbs per serving and 50 grams of protein at 700 calories. Plus, we included 6 grams of dietary fiber per serving and Medium Chain Triglycerides to round out the nutritional value of each shake and complement BSN®’s legendary great taste. Used post-workout, between meals and/or before bed, TRUE-MASS® can fuel your recovery from heavy training while providing the nutrients your body needs to keep on building.

Gain with the Best of Them!

TRUE-MASS® features BSN®’s signature ultra-premium protein formula to feed an athlete’s muscles with the essential protein building blocks.* The unique carbohydrate blend provides the caloric support necessitated by extreme physical exertion, helping the body prepare for and support recovery from intense training.* Healthy fats supply quick-burning fuel to satisfy the serious athlete’s energy demands.* And all these high-quality ingredients come delivered with BSN®’s exclusive flavor technology, producing one of the most mouth-watering mass-gaining shakes on the market.


BSN®’s protein powders, such as Syntha-6® and Syntha-6® Isolate, are comprised primarily of protein and contain only small amounts of fats and carbohydrates, while staying under approximately 200 calories per serving. These protein powders are recommended to supplement protein intake through-out the day and as a post workout recovery shake. While TRUE-MASS® is a perfectly good option for these applications as well, its strength lies in its formula of a 2-to-1 ratio of carbohydrates to protein, which is geared towards athletes who require an above normal caloric intake or who have a hard time meeting their caloric intake in a given day.

BSN Supplementation

At BSN®, we have designed our products to complement one another. When used together, they can help enhance the overall benefits of your supplementation and workout regimen.

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Ratings & Reviews

True-Mass Weight Gainer
Overall Rating
591 Ratings
Verified Buyer Rating
113 Ratings
Average Flavor Rating
6 Flavors
Top Rated Flavor
Manteiga de amendoim e chocolate
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.
May 21, 2020
Verified Buyer
  • 10 Chocolate Milkshake
  • 9 Cookies & Cream

Mixes well with water and milk, I lean more towards the chocolate for sure, but either for us delicious!

Jan 08, 2020
Verified Buyer
  • 1 Cookies & Cream
  • 1 Chocolate Milkshake
  • 1 Strawberry Milkshake
  • 1 Vanilla Ice Cream

Very bad sellers ordered and didnt gor it and they didnt refund money

Oct 19, 2019
Verified Buyer
  • 10 Vanilla Ice Cream

Excellent product!

Sep 16, 2019
Verified Buyer
  • 9 Chocolate Milkshake

I think its to early for me to talk about the progress. But yes i can feel it, i am a ******* hard gainer and this helped me 2kg to gain in probably 2 months. Which I really appreciate and i am going on with this protein, trust the process and will see where it takes me. I don’t want to try any other flavour because i drink this for function and chocolate is a very nice and delicious flavour.. finally found a protein which really work out as well as taste nice.

Sep 14, 2019
  • 3 Chocolate Milkshake

Why Knowing the Ingredients in Your Food is More Important Than Knowing How Many Calories Are in it There is being healthy and then there is thinking you are being healthy, unfortunately thanks to some creative wording on food labels it can be hard to tell the difference. Advertisers have gotten pretty savvy at using words to trick consumers into thinking they are buying something healthier than they really are. being healthy is about more than exercise.

Sep 11, 2019
Verified Buyer
  • 6 Chocolate Milkshake

So I used Serious mass first and wanted to use another branded protein shake and I have to say I’m a bit disappointed. The flavour wasn’t nice to drink and I only helped me gain 7 kg from 70kg to 77kg and very slowly as well. I would dread to drink this every time I went gym.

Jul 15, 2019
Verified Buyer
  • 10 Cookies & Cream

People don't seem to like the Cookies and Cream as much as the others. But my 20 y.o. college student son loves it and his Mom and I have both commented on how good it smells when he is making his shakes.

Jul 08, 2019
Verified Buyer
  • 8 Chocolate Milkshake
  • 10 Vanilla Ice Cream

Great mass gainer. Really leaves you with that full, bloated feeling so i wouldn't recommend taking this before eating, but you will see results. this is my main tried-n-true protein i take. both flavors i rated are excellent, too. overall amazing protein! Tip: mix with milk, taste is 10/10

May 21, 2019
Verified Buyer
  • 10 Strawberry Milkshake

I have used the chocolate and the strawberry milkshake. I’m not that big on chocolate in general but it is still good but the strawberry milkshake is the best tasting protein I have ever had. It tastes exactly like a real strawberry milkshake.

Feb 25, 2019
Verified Buyer
  • 9 Strawberry Milkshake

By far best tasting protein shake I’ve had. It also does not make you bloated.

Feb 16, 2019
Verified Buyer
  • 10 Strawberry Milkshake

This stuff is great! I have tried many weight gainers and this is by far my favorite. It really feels like a clean gainer. I have bought this same tub so many times and have never looked back since the first time I used it. I started noticing some results in my goals only after a month using this product. I have not tried any other flavors besides strawberry but that is literally the best tasting protein shake I’ve ever had. I usually mix it with milk and add in other stuff. Overall awesome product. Ordered from this site on a Thursday night and got delivered to my house that Saturday afternoon! Thanks!

Nov 13, 2018
Verified Buyer
  • 8 Vanilla Ice Cream

Does anyone know where the sale by date is ?

Oct 07, 2018
  • 8 Strawberry Milkshake

Great Product

Sep 25, 2018
  • 8 Chocolate Milkshake

I’ve had one serving of this every day for probably 25 days, lifting 6 days a week, have gained almost 15lbs. Stuff works lol as long as you put in the work and still eat a lot of food

Jul 10, 2018
  • 9 Cookies & Cream
  • 10 Chocolate Milkshake

Great product, in the little time I have been taking this BSN item I can already see some mayor results. The taste of the Chocolate flavor its putty good and refreshing compared to other products that taste like medicine, not this item. Definitely recommend it!

1 Size
5.82 Lbs.
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4 Flavors
Chocolate Milkshake
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Price: $51.99  ($3.25 / Serving)
Flavor Rating: 9.2


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With a 2-to-1 ratio of carbohydrates to BSN proteins, 17g of Fat, and a muscle building amino acid matrix; BSN True Mass targets macros for growth and adds healthy fats compared to fast acting carbs made of pure maltodextrin powder filler.*

What's in BSN True-Mass Weight Gainer

5.82 Lbs. Chocolate Milkshake
Supplement Facts
Serving Size3Rounded Scoops(165g)
Servings Per ContainerAbout 16
Amount Per Serving
Calories 700
Calories From Fat 150
% Daily Value†
Total Fat 17g 26%
Saturated Fat 4g 20%
Trans Fat 0g
Cholesterol 130mg 43%
Sodium 300mg 13%
Potassium 900mg 26%
Total Carbohydrates 90g 30%
Dietary Fiber 6g 24%
Sugars 14g
Protein 46g 92%
Vitamin A 0%
Calcium 50%
Phosphorus 50%
Vitamin C 0%
Iron 41%
Magnesium 25%
† Percent Daily Values are based on a 2,000 calorie diet Your daily values may be higher or lower depending on your calorie needs
Protein Matrix Consisting Of (Whey Protein Concentrate, Calcium Caseinate, Milk Protein Isolate, Whey Protein Isolate, Micellar Casein, Hydrolyzed Whey Protein, Egg Whites, Glutamine Peptides), Maltodextrin, Sunflower Powder (Sunflower Oil, Corn Syrup Solids, Sodium Caseinate, Mono- And Diglycerides, Dipotassium Phosphate, Tricalcium Phosphate, Soy Lecithin, And Tocopherols), Cocoa Processed With Alkali, Natural & Artificial Flavors, Polydextrose, MCT Powder (Medium Chain Triglycerides, Non-Fat Dry Milk, Disodium Phosphate, And Silicon Dioxide), Lecithin, Cellulose Gum, Xanthan Gum, Guar Gum, Acacia (Gum Arabic), Acesulfame Potassium, Sucralose.
Contains Milk, Egg, Wheat And Soy (Lecithin) Ingredients.

Directions For True-Mass Weight Gainer: Mix 3 scoops with 16 oz of cold water or beverage of your choice. Vary the amount of liquid to achieve desired consistency. Drink 2-4 servings daily or as needed to satisfy your protein or mass gaining requirements. To increase your protein and calorie intake per serving and to acheive an amazing milk shake taste, use milk.

* 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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