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Reflex Instant Mass Heavyweight Chocolate 2400g Powder

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£24.99 RRP £39.99 save £15.00

£1.04  /  100 g 021118


Delivery Options

Standard Delivery £1.99 or Free on orders over £20 - delivery within 2 days

Next Day Delivery £2.99 or Free on orders over £50 - order by 9pm

Collect from a local convenience shop for £1.99 or Free on orders over £30 - delivery within 4 days

Nutritional Info

Nutritional Information

Per 100g / 300g **
Energy (kJ) 1539kJ / 4618kJ **
Energy (kcal) 363kcal / 1089kcal **
Fat 1.9g / 5.7g **
Of which Mono-unsaturates 0.5g / 1.5g **
Polyunsaturates 0.6g / 1.7g **
Carbohydrate 65g / 195g **
Of which sugars 1.3g / 4g **
Fibre 3g / 9g **
Protein 20g / 60g **
Salt 0.25g / 0.75g **
Vitamin A 133μg / 400μg **
Vitamin D 2.5μg / 7.5μg **
Vitamin C 33mg / 100μg **
Thiamin 0.53mg / 1.6mg **
Riboflavin 0.53mg / 1.6mg **
Niacin 3mg / 9mg **
Vitamin B6 0.5mg / 1.5mg **
Folic Acid 33.3μg / 100μg **
Vitamin B12 0.4μg / 1.2μg **
Biotin 27μg / 80μg **
Pantothenic Acid 1mg / 3mg **
Zinc 2.5mg / 7.5mg **
Selenium 9μg / 27μg **
Chromium 17μg / 50μg **
See More
Product Info

  • Special weight gaining formula to maximise muscular weight gain
  • Ideal for 'hardgainers' - those who struggle to put on muscle
  • Each serving contains 50g of complex carbohydrates, 52g of whey protein, & micellar casein
  • Loaded with glutamine and 18 vitamins & minerals

Reflex Nutrition Instant Mass is a special weight gaining formula specifically designed to maximise muscular weight gain and minimize body fat storage whilst gaining weight. Instant Mass offers maximum muscle gain with minimum fat gain.

Ideal for 'hardgainers' - those who struggle to put on muscle - Instant Mass supplies adequate calories and protein to put the body in a truly anabolic, muscle-building state.

Each serving of Instant Mass contains a special blend containing 50 grams of complex carbohydrates from Activated Barley and Organic Oats, 52 grams of Whey Protein and Micellar Casein.


CarboBiotics Carbohydrate Blend (61%) (Maltodextrin, OAT Flour, Trehalose), High Biological Value Protein Blend (16%) (Whey Protein Concentrate (MILK), Native Whey Protein Isolate (MILK), MILK Protein Concentrate, EGG White Protein Isolate, Hydrolysed Whey Proteins (MILK), Peptide-Bonded Glutamine (WHEAT)), Creapure Creatine Monohydrate, Cocoa Powder (5%) (chocolate varieties only), Flavourings, Colour (Betanin (strawberries & cream variety only)), L-Glutamine, Magnesium Bisglycinate, Potassium Chloride (choc-peanut butter variety only), L-Choline Bitartrate, Sweetener (Acesulfame K), L-Ascorbic Acid, Bacillus Coagulans (LactoSpore), Emulsifier (SOYA Lecithin), Sweetener (Sucralose), Zinc Bisglycinate, Tocotrienol-Rich Annatto seed extract (DeltaGold - 35% total tocotrienols of which 84-92% Delta-Tocotrienols, 8-16% Gamma-Tocotrienols), Iron Bisglycinate, Nicotinamide, Copper Bisglycinate, Selenomethionine (SeleniumSeLECT), Piperine Extract (Bioperine), Retinyl Acetate, D-Calcium Pantothenate, Cholecalciferol, Riboflavin, Thiamin Hydrochloride, Pyridoxine Hydrochloride, Colour (Beta Carotene (vanilla ice cream variety only)), Chromium Picolinate, Pteroylmonoglutamic Acid, D-Biotin, Methylcobalamin, Anti-Caking Agent (Calcium Silicate). For allergens, including cereals containing gluten, see ingredients in BOLD.

Customer Reviews
Reflex Instant Mass Heavyweight Powder Chocolate is rated 4.4 out of 5 by 10.
Rated 4 out of 5 by from Helps This supplement works if you stick to the basics in terms of eating properly and working out regularly. [This review was collected as part of a promotion.]
Date published: 2019-03-08
Rated 5 out of 5 by from Brilliant product I always buy this for my hubby who’s job is very physical he’s a tree surgeon and he needs it to actually balance his weight out. As well as giving him energy his physique has toned up loads and his skin looks flawless. Brilliant product best to buy it when it’s on half price too. [This review was collected as part of a promotion.]
Date published: 2019-03-03
Rated 5 out of 5 by from Great taste, mixes well I've been using this stuff for a while now. I've been very impressed with the flavour and value for money and it mixes well – though I do chuck in a couple of ice cubes which helps stop lumps forming. The only downside is the recommended serving size of two large, level scoops and 750ml of water. Too much for me – I have a scoop and a bit and make about a pint. Any more than that and I'd be too full for a proper workout. [This review was collected as part of a promotion.]
Date published: 2018-10-26
Rated 4 out of 5 by from Decent Good quality. Decent taste, but having said that in my opinion all protein powders taste nasty. This one is actually ok. Would recommend [This review was collected as part of a promotion.]
Date published: 2018-08-20
Rated 5 out of 5 by from It’s a decent creatine milkshake powder! I think for the price and size it’s a good deal overall, and so far it tastes like a proper milkshake!
Date published: 2018-07-27
Rated 5 out of 5 by from Real value for money! I bought his for my son. He says its one of the best buys!
Date published: 2018-01-25
Rated 5 out of 5 by from Awesome!! Great product, tastes amazing can't fault it whatsoever!!. Made some good gains. Holland & Barratt are amazing great deals!! Order more already just for before and after the gym, in no way should anyone replace a meal for a shake!!
Date published: 2018-01-21
Rated 1 out of 5 by from Taste is vile and bitter Chocolate perfection they named it. It’s incredibly bitter, and gives you bad wind which tastes even worse
Date published: 2018-01-19
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