Reflex Instant Mass Heavyweight

Reflex Instant Mass Heavyweight

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RRP: £74.99

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What is a Weight/Mass Gainer?

Weight gainer supplements, otherwise known as mass gainers, are most often used by exercisers and bodybuilders looking for a healthy way to increase daily caloric intake in order to gain weight and build lean muscle mass.

Benefits of Instant Mass Heavyweight:

  • Increasing Energy
  • Convenient
  • Achieve a High Calorie Intake
  • Increased Body Mass
  • Swifter Digestion and Absorption
  • Higher Ammino Content
  • High Protein Content

Reflex Instant Mass Heavyweight:

Instant Mass® Heavyweight – our best weight gainer for the hardgainer.

Instant Mass® Heavyweight – our best weight gainer for the hardgainer

Reflex Nutrition’s newest and best weight gainer designed specifically for hardgainers and all athletes wanting a very high quality source of protein and complex carbohydrates. A formula designed to outperform in every area and will rewrite your expectations of what a weight gainer can deliver.

Heavyweight High BV Quattro® Protein Complex provides a massive 60 grams of protein.

Arguably the most sophisticated and best protein blend in a weight gainer that you won't find in any other product. Quattro® is unique to Heavyweight, exclusively from Reflex Nutrition. It consists of three different types of whey protein in conjunction with pure undenatured micellar casein. Four of the best!

What is Quattro® Protein Complex?

To trigger new muscle growth you need to train hard and consume the best high quality sources of protein. Quattro® protein complex is one of the best combinations of protein science has to offer - specific forms of whey protein and micellar casein.

However, we don't use just any type of whey proteins for Heavyweight, first we use two different hydrolysed (pre-digested) whey proteins; one has a High DH (degree of hydrolysis meaning how much it's been pre-digested) which the human body can absorb almost instantly, the second has a Low DH providing the human body with a secondary hit of whey peptides. 

Third, we use a preferentially selected whey protein concentrate in conjunction with unique native whey protein isolate that is chosen for its high levels of bioactive fractions and superior branched-chain amino acid (BCAA) content.

Fourth, we add pure ultra-filtered micellar casein that is digested over a longer period of time feeding your body with essential amino acids for up to 4 hours providing excellent anti catabolic activity.

Note: Does not contain soy protein like some brands, soy has a lower biological value compared to whey.

Heavyweight Carbiotics™ Carbohydrate Complex, with no added sugars.

Many weight gainers today contain lots of empty calories from simple sugars like fructose and dextrose. Heavyweight is different. It’s one of the best weight gainers containing a unique blend of the finest oats, maltodextrin and treaholse it provides a serious source of fuel for your body that’s free from corn syrup, fructose and simple sugars.

Heavyweight Awesome Flavour, Mixability and Ease of Use

Instant Mass Heavyweight tastes amazing, it’s a shake that mixes very easily in a shaker and tastes delicious. It comes in 5 mouth-watering flavours. Use this amazing weight gainer between meals and post workout.

Available in:

  • Chocolate Perfection
  • Strawberries & Cream
  • Vanilla Ice Cream
  • Chocolate Peanut Butter

For a full serving mix 300 g (approximately two level 250 ml measures) with 700 ml water in a suitable shaker cup or blender, mix until smooth.

The above is our recommended usage directions; You may of course mix with more of less liquid to reach the desired consistency and taste.

  • Heavyweight Nutritional Profile 100g NVR 300g
  • Energy (KJ)1640 4921
  • Energy (kcal)387 1160
  • Protein 20g 60g
  • Carbohydrate 73g 219g - Of which Sugars 1.1g 3.3g
  • Fat1.6g 4.8g - Of which Saturates 0.6g 1.8g, Polyunsaturates 0.6g 1.7g, Mono-unsaturates 0.4g 1.1g
  • Fibre trace trace
  • Salt 0.23g* 0.69g
  • Vitamin A 133.3μg 50400μg
  • Tocotrienols (DeltaGold®) 2.5mg* 7.5mg
  • Vitamin B 60.5mg 1141.6mg
  • Vitamin C 33.3mg 125100mg
  • Thiamin 0.53mg 1451.6mg
  • Riboflavin 0.53mg 1141.6mg
  • Niacin 3mg 569mg
  • Vitamin D 32.5μg 1507.5μg
  • Folic Acid 33.3μg 50100μg
  • Vitamin B 120.4μg 481.2μg
  • Biotin 26.7μg 16080μg
  • Pantothenic Acid 1mg 503mg
  • Magnesium 50mg  40150mg
  • Iron 0.77mg 162.3mg
  • Copper 0.27mg 800.8mg
  • Zinc 2.5mg 757.5mg
  • Selenium 2.7μg 499μg
  • Chromium 16.7μg 12550μg
  • Creatine Monohydrate 1,000mg 3,000mg
  • Glutamine 333.3mg 1,000mg
  • L-Choline 33.3mg 100mg
  • Piperine Extract (Bioperine®) 1.67mg5mg
  • LactoSpore® Bacillus Coagulan166,666,666 spores*500,000,000 spores

NRV (Nutrient Reference Value) where given is based on reference intake values from Regulation (EU) No 1169/2011 of October 2011.


The primary ingredients of this product may originate from countries other than the United Kingdom.