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The ULTIMATE weight gain formula.
Build your physique with 1,250 calories per shake, with no added sugar.
Repair & refuel: 50 g of proteins & 250 g of carbs.
Enjoy between meals, post-workout &/or before bed.
1250+ CALORIES
50G PROTEIN
250+G CARBS
24 VITAMINS & MINERALS
PRODUCT DESCRIPTION
ON’s Serious Mass is the ULTIMATE weight gain formula. If you find it difficult to gain weight, Serious Mass will help you develop the physique you've always wanted!
What Does It Do?
Each delicious shake delivers an incredible 1,250 calories, but no added sugar. This includes 50g of blended protein to support building muscle and 250g of carbs to fuel your workouts.
When Is The Best Time To Enjoy My Shake?
Simply mix up 2 scoops with milk or water in your ON shaker and enjoy between meals, post-workout and/or before bed.
No surprise that customers voted Serious Mass ‘Weight Gainer of the Year’
Sold Out £29.99
CLA (Conjugated Linoleic Acid) is quickly becoming a "must have" for people who are looking to lose fat and gain muscle. Each softgel contains 1000 mg of CLA One® that yields 750 mg total CLA and 700 mg of active isomers.
Sold Out £15.99
Fish Oils contain long-chain fatty acids, with equally long names like docosahexenoic acid (DHA) and eicosapentaenoic acid (EPA). DHA and EPA are essential fats that cannot be made by your body. So, consuming them through foods like salmon and supplements such as the ON Fish Oil Softgels is the only way to get DHA and EPA. Better yet, our Fish Oil Softgels are enteric coated, which means that you get all of the benefits of fish oils without the fishy aftertaste that you might encounter without this special coating.
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Sold Out £29.99
Our Essential Amino Energy contains natural energisers to help power your personal best and is packed with 5g of amino acids per serving, ideally taken before, during or after your workout.
Our Essential Amino Energy has been specially formulated to deliver 5g of micronised amino acids, including BCAAs. Combined with natural energisers, this drink always gives you the edge.
It tastes delicious, is sugar free and just 10 calories per serving.
Mix up Essential Amino Energy in your ON Shaker any time you’re looking to improve mental focus, physical energy, and recovery support.
It’s ideal in the morning when you’re planning to attack the day, for pre-workout priming, or as an afternoon booster! You can enjoy the drink by itself or stack it with your other favourite supplements.
Sold Out £13.99
Optimum Nutrition's Flaxseed Oil Softgels are produced from oils that have been carefully extracted without the use of hexane or added heat. This cold extraction process helps to preserve the delicate chemical structure of Omega-3, Omega-6 and Omega-9 fatty acids that are so naturally rich in Flax seeds.
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