text.skipToContent text.skipToNavigation

Buy a tub of Gold Standard 100% Whey
and Get 2 Sachets for FREE

Serious Mass

  • Supports muscle building and weight gaining
  • More than 1260 kcal per serving to help boost your calorie intake
  • 50 g protein per serving to help build and maintain muscle
  • More than 250 g carbohydrates per serving to help support muscle Recovery
From £27.99

Product Overview


Serious weight gain requires serious calories. However, those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, a highly active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. SERIOUS MASS™ is the ultimate in weight gain formulas. With 1,250 calories per serving to boost daily calorie intake, 50g high protein to support muscle growth and repair, over 250g carbohydrates helping support muscle recovery , and now with 3 g added Creatine to support performance per serving, you’ve got nothing to lose and lots to gain. It is time to stop thinking small and get serious – SERIOUS MASS™



Ready to mix powder with protein, carbohydrates, vitamins and minerals, with sweetener.


  • Over 1250 calories per serving

  • 50 g of whey protein
  • 250 g carbs helps support muscle recovery 
  • 25 vitamins and minerals
  • 3 g of creatine to support performance 
  • Ideal formula to support weight gains
  • Enjoy post work-out and between meals
  • Available in a range of sizes and great tasting flavours

Suggested Use

For best results, consume your shake between meals when you need extra calories or after your workout to support your recovery.

Mix 2 heaped scoops with 710 ml of water.

Nutritional Information

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

Customer Reviews

Overall Rating (4.6)
Write your review here. For complaints and questions we would like to refer you to our customer service.
Please enter a headline
Please enter a comment
Please enter a rating

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.


Review by James Griffiths on Jul 24, 2021
Managed to put on almost 2 stone since i started drinking this, would recommend if u are trying to gain mass fast


Review by Anonymous on Jul 5, 2021
The artificial sweetener taste is a bit too overwhelming. Otherwise it keeps me full for a long time.

Great for sticking points

Review by Patrick Capps on Jun 27, 2021
It's great for getting those last few pounds on in a hard mass phase.

good stuff

Review by Rick on Jun 23, 2021
too much sugar, otherwise OK. In future I'll stick to gold standard whey though.

Great taste

Review by Keith H on Jun 17, 2021
Does everything it says


Review by Jamie Hamilton on Jun 15, 2021
Strawberry, vanilla and cookies and cream flavours are amazing. Really could see the difference after a few weeks of taking this product.

Great Taste

Review by Jeff Blakely on Jun 7, 2021
Love the Vanilla flavor. Not too thick so I can add some peanut butter or ice cream to change up the taste a little and get some extra calories.


Review by Zebul Rose on Jun 5, 2021
Works great for getting those extra calories would definitely recommend it to anyone trying to bulk, love it


Review by KingOmar on May 21, 2021
Theeeeerre Great

Sign up for weekly offers, news and advice

Plus 15% off your first order