Skip to content

Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg)

Save 4% Save 4%
Original price £61.49
Original price £61.49 - Original price £61.49
Original price £61.49
Current price £58.99
£58.99 - £58.99
Current price £58.99
Order by 2pm GMT
Dispatch Status
Shipping
(2 - 5 Days)
Delivered by
  • Instant MASS Heavyweight carbohydrate MASS PROTEIN POWDER is a protein shake specifically designed for hard gainers looking to GAIN Muscle MASS. With over 1000 calories and 18 added vitamins and minerals per protein shake Instant MASS Heavyweight MASS PROTEIN POWDER will help you to achieve your goals.
  • Instant Mass Heavyweight MASS PROTEIN POWDER delivers a blend of complex carbohydrates, 60g grams of PROTEIN per serving, creatine and 18 vitamins such as B12, B6, C, Iron, Zinc, Copper and Chromium.
  • Instant Mass Heavyweight MASS PROTEIN POWDER can be taken 20-30mins post workout or 45-60mins before bed to contribute to muscle maintenance overnight.
  • Reflex Nutrition only uses WHEY PROTEIN derived from grass-fed cows ensuring premium quality
  • Manufactured on an informed sport registered facility, suitable for vegetarians and made on a Halal certified site. Hormone free, no added sugars, artificial colours or soy protein.
  • How to use: Consume 1 serving per day, ideally post-workout. Mix 300g with 700ml water or skimmed milk in a shaker or blender. 700ml is recommended for optimal taste but these are guidelines and more or less water can be added to suit your preference. This is a food supplement and should be used in conjunction with a balanced diet. Not suitable for those under 18.
  • Description
  • Instant Mass Heavyweight protein powder is a protein shake designed specifically for hardgainers and athletes wanting a very high quality source of protein and complex carbohydrates. over 1000 calories per serving. Each serving provides a huge protein, carbs, and calories. In order to provide such a huge dose of protein, we've created the Quattro protein blend, which is four of the best types of whey protein together with our slow-releasing protein Micellar Casein. Instant Mass Heavyweight protein powder 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.IngredientsCarboBiotics 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.DirectionsFor 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.New users of this product may find it easier to start with a 1/2 serving, and then slowly increase to one or more full servings per day as required by your calorie intake plan.For a creamier, more calorie-dense shake try mixing with semi-skimmed milk instead of water.Instant Mass Heavyweight is suitable for consumption throughout the day as required by your calorie intake plan.Consume between meals to maintain a positive nitrogen balance. Consume 20 - 30 minutes post-workout to contribute to a growth in and the maintenance of muscle mass.Consume 45 - 60 minutes before bed to contribute to the maintenance of muscle mass overnight.Safety WarningThis product is not intended for use by persons under the age of 16. Keep out of reach of young children. Do not exceed the stated daily dose.Box Contains1 x Instant Mass Heavyweight - 5.4kg - Vanilla Ice Cream

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 Details
Calories 1089kcal kcal
0%
RDI
Protein 60g g
100%
RDI
Fat 5.7g g
0%
RDI
Sat Fat 2.3g g
0%
RDI
Carbs 195g g
0%
RDI
Salt 0.75g g
0%
RDI
Values per serving
Please note that this information may be subject to change.
For the most accurate and up-to-date details, please refer to the product packaging.
Stock Expiry Date: 31-10-2025
SKU: REF047
Shipping & Returns

Fast and Reliable Shipping
We partner with Royal Mail and DPD to provide reliable delivery across the UK. All orders are fully tracked for your peace of mind. Track your order easily by visiting this page.
For an delivery estimate before purchase, use our Delivery Time Estimator

Dispatch Times
To ensure you receive the freshest products, we operate on a just-in-time fulfillment model. This means some items may not be immediately available and are ordered upon your purchase. Please allow 1-2 working days for processing. Orders placed by 2 PM GMT will begin processing on the next working day.
Note: "Next Day Delivery" is only available if explicitly stated on the product page.

Returns
If you're experiencing issues with your order, please contact us at hello@mysupplementshop.co.uk. For detailed information on our shipping and return policies, please visit our Shipping & Returns Policies page.

Need Help? Contact Us!

If you require any assistance, we'd be happy to help!

*We're available Monday to Friday 9am-4pm GMT

Website Disclaimer

Product information on our website is subject to change by manufacturers. Actual product packaging, materials, and ingredient lists may differ from what's shown. Information is for informational purposes only. Don't rely solely on our website's information; always read labels, warnings, and directions before using or consuming a product. For up-to-date information, contact the manufacturer Reflex Nutrition. Any medical claims or clinically proven studies mentioned are provided by the manufacturer and not endorsed or verified by us. For safety concerns or other information, consult the label or packaging and contact the manufacturer. Content isn't intended as a substitute for professional medical advice. Contact a health-care provider if you suspect a medical issue. We aren't responsible for inaccuracies or misstatements about products by manufacturers or third parties, but this doesn't affect your statutory rights.

Customer Reviews Disclaimer

The customer reviews featured on our website are sourced from third-party platforms and individual contributors. We showcase these reviews to provide our customers with a broad range of opinions and experiences from other users, which may help in making an informed decision about a product. However, we do not verify the authenticity of reviews nor do we endorse any statements made in these reviews.

We are not responsible for any discrepancies or inaccuracies found within these reviews, nor for any actions taken by you based on the content of such reviews. While we aim to present only genuine reviews, we cannot guarantee the reliability or accuracy of the content provided by third parties. We advise customers to use their discretion when evaluating product reviews.

Our inclusion of third-party reviews should not be seen as an appropriation of such content but as a means of providing a comprehensive view of public opinion. If there are any concerns regarding the legitimacy or ownership of the reviews, please contact us for clarification or action.


Why MySupplement.Shop?

What is the serving size for Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg)?

300g

What is the calorie count for Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg) per serving?

1089kcal

What is the protein content for Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg) per serving?

60g

What is the carbohydrate content for Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg) per serving?

195g

What is the fat content for Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg) per serving?

5.7g

What is the saturated fat content for Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg) per serving?

2.3g

What is the salt content for Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg) per serving?

0.75g

Where can I buy Reflex Nutrition products?

Reflex Nutrition products are available for purchase on MYSUPPLEMENT.SHOP. Offering a comprehensive range of Reflex Nutrition supplements such as Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg), the site provides detailed product information, competitive pricing, and swift delivery. Customers can also view reviews and product descriptions to help choose the right option.

How much cheaper is MySupplement.Shop compared to the Highstreet for Reflex Nutrition Instant Mass Heavyweight (Vanilla 5.4kg)?

This Reflex Nutrition product is £2.50 cheaper than the RRP.

Customer Reviews

Based on 75 reviews
37%
(28)
5%
(4)
19%
(14)
12%
(9)
27%
(20)
O
Oky
Great if you are busy and have to chug a

Great if you are busy and have to chug a lot of calories at one, partner was really happy with the flavour and the product

O
Oky
Great if you are busy and have to chug a

Great if you are busy and have to chug a lot of calories at one, partner was really happy with the flavour and the product

H
Hueygreen
Definitely recommend, works better for me personally than others I've

Definitely recommend, works better for me personally than others I've tried. Not the most delicious tasting shake ever, but a minor knit pic in an otherwise great product. Great price too if you can get it on offer!

H
Hueygreen
Definitely recommend, works better for me personally than others I've

Definitely recommend, works better for me personally than others I've tried. Not the most delicious tasting shake ever, but a minor knit pic in an otherwise great product. Great price too if you can get it on offer!

D
Daveb
I bought the small 2kg tub in chocolate and I

I bought the small 2kg tub in chocolate and I really liked the taste so I then got the bigger 5kg bag. The scoop is better in the larger bag. I half the measurement so its just 1 large level scoop instead of 2, with is still 500 kcal and 30g protein. The tube has a small scoop, which it say to use 5 heaped scoops with can vary depending on the heap. Mixed with 600ml water it tastes really good and mixes very well in a shaker bottle. I've only tried chocolate so may try a different flavour another time. It also has lots of vitamins to help with recovery after a good training session.

D
Daveb
I bought the small 2kg tub in chocolate and I

I bought the small 2kg tub in chocolate and I really liked the taste so I then got the bigger 5kg bag. The scoop is better in the larger bag. I half the measurement so its just 1 large level scoop instead of 2, with is still 500 kcal and 30g protein. The tube has a small scoop, which it say to use 5 heaped scoops with can vary depending on the heap. Mixed with 600ml water it tastes really good and mixes very well in a shaker bottle. I've only tried chocolate so may try a different flavour another time. It also has lots of vitamins to help with recovery after a good training session.


Supplemental Shenanigans