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  • Ideal Formula to Support Weight Gains
  • 1,250 Calories per Serving to Help Support a Calorie Surplus
  • 50 Grams of Blended Protein per Serving to Help Build and Maintain Muscle
  • 252-254 Grams of Carbohydrates (with no added sugar) to Help Fuel Workouts
  • 1g Creatine Monohydrate with added Creatine

Product Overview


To gain weight, you need to consume more calories than you expend. For many aspiring to hit their calorie goals and put on size, a highly active metabolism, weak appetite or on-the-go lifestyle can make it a real challenge to get enough calories from food alone.
SERIOUS MASS is the ultimate muscle building and weight gain formula. With 1,250 calories per 2-scoop serving and 50 grams of protein to support muscle recovery, this powder makes the ideal post-workout and between meals shake for sizing up your goals. SERIOUS MASS provides you with the tools you need to support your weight gains goals.


  • Training longer and harder to gain more muscle
  • Finding it difficult to consume enough calories through food alone
  • Finding it challenging to gain weight regardless of your dietary intake.

Serious Mass provides you with all the tools you’ll need to pack on the pounds.


  • 1,250 Calories per Serving to Help Support a Calorie Surplus for Weight Gain and Muscle Building

  • 50 Grams of Blended Protein per Serving to Help Build and Maintain Muscle
  • 252-254 Grams of Carbohydrates (with no added sugar) to Help Fuel Workouts and Aid in Replenishment of Glycogen Stores
  • 1g Creatine Monohydrate To Support Muscle Strength, Power And Size When Combined With High-Intensity Activities
  • 20 Additional Vitamins and Minerals (including L- Glutamine)
  • Ideal Formula to Support Weight Gains
  • Available in a Range of Sizes and Great Tasting Flavours
  • Enjoy Post Work-out and Between Meals

Suggested Use

Mix 2 scoops of the powder into 700-720ml of cold water or milk using an electric blender. This allows to you add in fruits, peanut butter and other calorie-contributing foods. TIP: New users should start with a 1-scoop half serving. Use post-workout and/or between meals to add calories, carbs and protein to your healthy, balanced diet.

Nutritional Information

Nutritional information will be shown when a flavour and/or size is selected.

Customer Reviews

Overall Rating (4.6)
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Serious mass

Review by Chris on Nov. 25, 2021
Very good mass gainer supplement you will get results with this brand


Review by Anonymous on Nov. 5, 2021
First time using there product. Satisfied.


Review by Angelo on Nov. 4, 2021
Been using it for years and it works. Delicious as well.

Gout Vanille en Banane ???

Review by HIPPOLYTE BONNEAU on Nov. 4, 2021
Gainer plutot bon, toutefois j'ai commandé gout Vanille, et je me suis retrouvé avec un gout banane, dans un pot (ettiqueté Vanille) C'est pour ca les 3 étoiles

Works well

Review by Eugene on Oct. 13, 2021
It works really well, but a little bit too sweet


Review by Jeremy McAdams on Sep. 10, 2021
Real incredible stuff honestly. If youre serious about gaining wait quickly this is all you need. Ifnyou have never taken this kinda stuff before i recommend following the guidelines on the package to just take half a serving for a week or two.

Great shake. I love it

Review by Jerome Thompson on Aug. 12, 2021
Great shake you will notice your weight gain very quickly

Works as advertised

Review by Colin M on Aug. 12, 2021
A friend recommended this product to me after I professed that I wanted to get back to exercising, but didn't have the appetite or patience to add that many calories to my diet. It's been the perfect product for me. I usually drink 1 shake and eat 2 meals a day. The taste of the vanilla option is an unusual type of sweet, since it's heavy on carbs but not sugar/high fructose corn syrup. I've found that adding unsweetened cocoa powder makes it quite enjoyable.

Great product with decent taste

Review by Vishal Shinde on Jul. 30, 2021
It tastes decent. Overall a good product, helps me cover the extra calories I need to gain weight.

Works a treat

Review by Ethan on Jul. 25, 2021
I had the banana flavour, taste great, i mix it with water, requires a good amount of shaking to mix properly (ON recommend using a blender), i put on 4KG with this shake over about 5 weeks and i wasnt even religious with taking it. On the 4 days i weight trained a week i had one scoop (half the recommended) and on my cardio day where i played football i had 2 scoops. I had a week off from my shake half way through. Im going to try the gold standard version next as i want to have more control over my creatine intake as i have always personally got sides from creatine like face bloating.