Reflex Nutrition Instant Mass Heavyweight 5.4kg Powder

Reflex Nutrition

Weight Gainers


What is Instant Mass® Heavyweight?
Instant Mass® Heavyweight is a protein shake designed specifically for hardgainers and athletes wanting a very high quality source of protein and complex carbohydrates.

Instant Mass® Heavyweight delivers a blend of complex carbohydrates to provide your body with a serious source of fuel without simply adding sugars, corn syrups, or fructose. It also contains 18 added vitamins and minerals to support your physical goals before, during and after training.

Who is it for?
Instant Mass® Heavyweight has been created for hardgainers and athletes who train intensely but find it difficult to gain muscle and weight.

Hardgainers need a high-calorie, carb heavy diet to boost their training, with a large protein hit to feed their muscles. Instant Mass® Heavyweight provides the calories, carbohydrates and protein hardgainers need to boost their training. It's also suitable for vegetarians.

Product Information
Instant Mass® Heavyweight provides the body with protein from Whey Protein Concentrate, Micellar Casein, Native Whey, Hydrolysed Whey Protein

The whey protein concentrate in Instant Mass® Heavyweight is made by separating the whey protein from the other components in milk. Hydrolysed whey protein is treated with enzymes to make it even faster to digest.

This product will feed the body energy, while the carbohydrates provide a long-lasting comprehensive energy source to enable the body to work out for longer, more intense periods.

What are the benefits?

  • 60g protein per serving
  • 1000+ calories per serving
  • 203g carbs per serving
  • 18 added vitamins and minerals
  • Added creatine and L-Glutamine
  • Low sugar
  • Blend of 4 high-quality protein sources
  • Protein from grass-fed cows
  • Lactospore (friendly bacteria) It also contains the following vitamins and minerals, which all have their own individual benefits:
  • Vitamin B12 which contributes to the reduction of tiredness and fatigue
  • Vitamin B6 which contributes to the normal function of the immune system
  • Vitamin C which contributes to the normal function of the immune system during and after intense exercise
  • Iron which contributes to normal formation of red blood cells and haemoglobin
  • Zinc which contributes to normal carbohydrate metabolism
  • Copper which contributes to the maintenance of normal connective tissue
  • Chromium which contributes to the maintenance of normal blood glucose levels
Recommended Usage
Mix 300g (approximately two level 250ml measures (there is a scoop included in the tub/bag) with 700ml water in a shaker or blender.

When just starting with this product, you may find it beneficial to begin with half the quantity before slowly increasing to the full serving in order to make it fit into your personal calorie plan.

Consume Instant Mass® Heavyweight between meals to maintain a positive nitrogen balance, or drink 20-30 minutes after a workout for optimal results. Alternatively, take Instant Mass® Heavyweight 45-60 minutes before bed to contribute to muscle maintenance overnight.

Once mixed, consume the shake immediately and don't leave to stand.

For a shake that is more calorie-heavy and creamier, try the product with semi-skimmed milk.

This is a food supplement and should be used in conjunction with a balanced diet.

This product is not suitable for those under 18.

Nutritional Information Per 300g Serving % RI Per 100g  % RI
Energy KJ 4686Kj 56% 1562Kj 19%
Energy KCAL 1104Kcal 56% 368Kcal 19%
Fat 5.3g 8% 1.8g 3%
of which Saturates 1.2g 6% 0.4g 2%
Carbohydrates 203g 78% 68g 26%
of which Sugars 14g 16% 4.8g 5%
Fibre 3.6g G 1.2g G
Protein 60g 120% 20g 40%
Salt 0.30g 2% 0.10g 1%
Vitamin A 400μg RE 50% 133μg RE 17%
Vitamin D3 7.5μg 150% 2.5μg 50%
Vitamin E 6.0mg 50% 2.0mg 17%
Vitamin C 100mg 125% 33mg 42%
Vitamin B1 1.1mg 100% 0.4mg 33%
Vitamin B2 1.4mg 100% 0.5mg 33%
Niacin 8mg NE 50% 2.7mg NE 17%
Vitamin B6 1.4mg 100% 0.5mg 33%
Folic Acid 100μg 50% 33μg 17%
Vitamin B12 1.2μg 50% 0.4μg 17%
Biotin 75μg 150% 25μg 50%
Pantothenic Acid 3.0mg 50% 1.0mg 17%
Magnesium 150mg 40% 50mg 13%
Iron 2.1mg 15% 0.7mg 5%
Zinc  7.5mg 75% 2.5mg 25%
Copper 750μg 75% 250μg 25%
Selenium 27μg 50% 9μg 17%
Chromium 50μg 125 17μg 42%
Additional Per 300g
L-Glutamine (Free Form) 1g
Creapure Creatine Monohydrate 3g
L-Choline 100mg
BioPerine Piperine 5mg
LactoSpore Bacillus Coagulans 50,000,000 spores



Maltodextrin, Glutamine Peptides (WHEAT), OAT Flour, Whey Protein Concentrate (MILK, Emulsifier (SOYA Lecithin)), Cocoa Powder (Chocolate varieties only), MILK Protein (of which 80% Micellar Casein, 20% Native Whey), Hydrolysed Whey Protein (MILK), Flavourings, Creatine Monohydrate (Creapure®), Sodium Chloride, Cocoa Powder (Salted Caramel variety only), Colour (Betanin) (Strawberries & Cream variety only), Potassium Chloride, Magnesium Citrate, L-Glutamine, L-Choline Bitartrate, Colours (Betanin, Anthocyanins) (Blueberry variety only), Colour (Carotenes) (Vanilla Ice Cream and Salted Caramel varieties only), Vitamin C (L-Ascorbic Acid), Potassium Chloride, Sweetener (Sucralose), Bacillus Coagulans (LactoSpore®), Zinc Bisglycinate, Vitamin E (D-Alpha Tocopherol Acetate), Selenium Enriched Yeast, Ferrous Bisglycinate, Vitamin B3 (Nicotinamide), Copper Bisglycinate, Black Pepper Extract (BioPerine® Piperine), Vitamin A (Retinyl Acetate), Vitamin B5 (Calcium D-Pantothenate), Vitamin D3 (Cholecalciferol), Vitamin B6 (Pyridoxine Hydrochloride), Vitamin B2 (Riboflavin), Vitamin B1 (Thiamine Hydrochloride), Chromium Picolinate, Vitamin B9 (Folic Acid), Vitamin B7 (D-Biotin), Vitamin B12 (Methylcobalamin).
For allergens, including cereals containing gluten, see ingredients in BOLD. May also contain traces of egg.