Reflex Nutrition

Reflex Instant Mass Pro (2.7kg)

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Reflex Instant Mass PRO is the updated version of their popular weight gainer Instant Mass. Instant Mass Pro keeps the things which made Instant Mass such a high quality product while adding in a few new ingredients to make it even better!

Reflex Instant Mass PRO is the updated version of their popular weight gainer Instant Mass. Instant Mass Pro keeps the things which made Instant Mass such a high quality product while adding in a few new ingredients to make it even better!

Echo Supplements on Reflex Instant Mass Pro
Reflex Instant Mass Pro is the newest version of Reflex Nutrition's Instant Mass weight gainer / meal replacement supplement. Instant Mass Pro shares all of the best things from it's predecessor and Reflex have improved the formula by adding extra probiotics to help your body digest the product better.

Instant Mass Pro has a balanced protein to carbohydrate profile which is very close to 50:50 - this means that you can alter the serving size very easily without adding loads of extra carbohydrates like you get in many gainers. So for example if you only want to get 25-30g protein at a time because you're replacing a small snack then just use 2 or 3 scoops instead of 5 and because the carbohydrate quantity is similar to the protein level the meal is still balanced.

With any supplement containing significant amounts of carbohydrate the quality of ingredients is very important - you will often find that weight gainers and meal replacement products have lots of sugars or cheaper protein sources in them. Reflex have used their Quattro protein blend which only contains high quality protein such as various whey proteins, and the carbohydrates are primarily low GI carbs such as oat flour, barley flour and trehalose - this really sets Instant Mass Pro apart from the competition!

Instant Mass Pro comes in 2 sizes - this is the smaller 2.7kg tub and it does also come in a 5.4kg bag if you'd like to bulk buy!

Reflex Instant Mass Pro - Manufacturer's Description
Reflex Instant Mass Pro is not a typical weight gainer. It is an ultra high-quality weight gain product made with a near perfect 50/50 split of protein and carbohydrate. With 54 grams of Quattro time-release protein per serving this is arguably the highest quality blend found in a weight gainer. Quattro is unique to Reflex and consists of 3 different types of whey protein, pure low-temperature ultra-filtered whey protein, hydrolysed whey protein and low-temperature native whey protein isolate; these 3 super proteins are combined with pure low-temperature micellar casein to provide four of the best - Quattro!

  • A near perfect balance of protein and carbohydrate
  • State of the art weight gainer delivering 54* g of Quattro time-release protein
  • Includes four strains of friendly bacteria, added zinc, boron, magnesium & vitamin D

Zinc, Magnesium, Vitamin D & Additional Nutrients
Instant Mass Pro weight gainer contains vital minerals. Each serving provides a significant source of zinc and magnesium which contribute to normal functioning of the nervous system (magnesium) and to the maintenance of normal testosterone levels in the blood (zinc).

We Do Not Use Inferior Ingredients
As with all Reflex products, Instant Mass Pro weight gainer only contains the finest quality ingredients available. More importantly Instant Mass Pro does not contain any added soy protein, corn syrup, dextrose, hydrogenated fats, cheap vegetable oils, sugar or salt!

Nutritional Information Per Serving (136g)
Calories 524
Protein 54g
Carbohydrate 60g
- of which sugars 11.4g
Fat 4.8g
- of which saturates 1.2g
- polyunsaturates 1.7g
- monounsaturates 1.7g
Fibre 9.9g
Sodium 0.28g
- salt equivalent 0.7g
Lactose 2.6g
Tocotrienols (DeltaGold) 13.6mg
Vitamin B6 5.3mg
Vitamin C 100mg
Vitamin D 1ug
Magnesium 113mg
Copper 0.75mg
Zinc 4.5mg
Selenium 20ug
Chromium 200ug
Boron 1mg
Digestive Enzymes (Digezyme) 50mg
Lactospore Bacillus Coagulen 125x106 spores
Bifidobacterium Bifidum 125x106 CFU
Lactobacillus Acidophilus 125x106 CFU
Lactobacillus Rhamnosus 125x106 CFU

Quattro Protein Blend (milk Ultra-filtered Whey Protein, Milk Protein Concentrate (80% Micellar Casein, 20% Whey), Milk Native Whey Protein, Milk Hydrolysed Whey Protein (degree Of Hydrolysis 30%)), Peptide-bonded Glutamine (derived From Wheat Protein), Carbobiotics Low Gi Carbohydrate Complex (oat Flour, Barley Flour, Trehalose, Fructooligosaccharide), Maltodextrin, Egg White Protein Isolate, Flavourings, Natural Colourings (fat Reduced Cocoa Powder (chocolate Varieties Only), Betanin (strawberry Variety Only), Beta Carotene (banana & Vanilla Varieties Only)), Magnesium Citrate,, Thickener (carboxymethyl Cellulose), Artificial Sweeteners (acesulfame K, Sucralose), Emulsifier (soya Lecithin), Ascorbic Acid (vitamin C), Digezyme Digestive Enzyme Complex (amylase, Cellulase, Lactase, Lipase & Neutral Protease), Tocotrienols As Deltagold (35% Total Tocotrienols Of Which 84-92% Delta-tocotrienols, 8-16% Gamma-tocotrienols) Obtained From Annatto, Zinc Monomethionine, Lactospore (bacillus Coagulans)), Sodium Borate, Copper Aspartate, Pyridoxine Hydrochloride (vitamin B6), L-selenomethionine (selenium Select), Chromium Picolinate, Bifidobacterium Bifidum, Lactobacillus Acidophilus, Lactobacillus Rhamnosus, Cholecalciferol

  • Mix 136g (approximately five level 60ml measures) with 40 ml water or skimmed milk in a shaker or blender
  • Consume 1-2 full or 2-4 half servings daily
  • Always consume one full serving after a workout

The above is our recommended usage directions; You may of course mix with more of less liquid to reach the desired consistency and taste. Product is best consumed immediately once mixed. Do not leave mixed product to stand, or leave in warm environments for extended periods. The scoop included with the product measures by volume not by weight, for precise measurements please use measuring scales. This product is sold by weight not by number of servings.

Reflex Nutrition

Reflex Nutrition produce some of the most highly regarded and recognisable on the supplements market today. With over two decades of experience, Reflex combine health and fitness to create a range of products which have you covered both in and outside of the gym.

Who are they?

Founded in 1996, Reflex Nutrition are based in Brighton, England, and run their own powder, capsule, drinks and bar manufacturing facilities, which makes them unique within Europe. This means that they have complete control over the manufacturing of their products, allowing for only the highest quality of product to leave their factory.

Reflex have always strived to produce the very best products that combine efficacy and broader consideration for general health. Their wide range of supplements cover everything from sports supplements to supplements for general health and wellbeing, making them one of the most versatile brands operating today.

Reflex Nutrition Key Supplements

Even with such a diverse range of products Reflex have still managed to produce a number of category leaders. Reflex One Stop Xtreme is one of the most popular weight gainers available and delivers outstanding results every time. This all in one is immense for gaining strength and size and is a must try for anyone looking to add some bulk.

Reflex also have a number of key supplements in other categories. Their 100% Whey Protein is known for its high quality and great taste, while their Thermo Fusion fat burner is one of our most popular products in the category.


We will take every effort to get you goods to you as efficiently and effectively as possible. All orders placed before 3pm will be shipped on the day of ordering subject to payment authorization and item availability.

Any items which are out of stock will be shipped as soon as they become available. If this causes a delay in your delivery, you will be notified and your order dispatched as soon as possible. If any items are unavailable, you will be contacted and offered a replacement or refund.

UK Delivery

If your order total is under £40 then you can choose one of:

  • Royal Mail Tracked - £2.95
    (1-3 Working Days)
  • DPD Next Day - £4.95
    (Guaranteed Next Working Day + 1 Hour Delivery Window)

If your order total is over £40 then you can choose

  • Royal Mail Tracked - FREE
  • DPD Next Day -1/2 Price - Only £2.49

Please be aware that the prices above are for areas classed as "UK Mainland" by DPD which does NOT include offshore islands, Scottish highlands or Northern Ireland.

Non-UK Delivery

Our website has a comprehensive postage system which takes into account the weight of your delivery and the destination address - to get a quote for your order please add the products you'd like to buy to your basket, go to the basket page and fill in the "Estimate Shipping & Tax" section to get the price.

BFPO Addresses

This shipping method is available for British Forces Posted Overseas and addresses only. Shipping is as with all other UK mailing but please check to see that the size and weight of your order does not exceed maximums for your BFPO destination number by checking with the BFPO website.

Please note that once we have shipped the item and handed over to the BFPO service we have fulfilled our contract and delivery responsibility. All queries and problems with delivery must be taken up by yourself with BFPO and any claims must be handled between yourself and them.

VAT Exempt

If this applies to you, the price you will pay for the goods will automatically be adjusted to remove the VAT element - you MUST choose the correct country on checkout for this to apply. We CANNOT refund the VAT once the order is completed.

You can also avoid paying VAT if you are having your goods sent to you in the UK, but are taking the goods abroad permanently within 3 months of making the purchase. You will have to pay the VAT with your order but by following the steps outlined you can reclaim the VAT from us:

Request a VAT Reclaim form from us; give us a call or email immediately after ordering. We will complete the relevant parts of this form before sending it to you with your goods. You will then take the form with you and the goods when you leave the UK and you should ask customs to fill in their section of the form at the airport, ferry terminal or channel tunnel when you leave the country.

When you reach your destination outside the EU, you can then send the completed form back to us and we will refund the VAT amount charged to the credit or debit card details you have filled in on the reclaim form


We stock the vast majority of products listed on our website in our Whitley Bay superstore and warehouse and these products are available for same day dispatch & next day delivery.

Due to the huge quantity of products we stock, we offer the ability to backorder products which have gone out of stock and less popular products which we don't carry stock of.

Depending on the brand these backorder products can take anywhere between 1 and 10 days to arrive into stock. We estimate 3-5 working days on average but please be aware that products from some brands can take a little longer

As always if you aren't sure or want a more accurate estimate just give our team a call or email!


You can return any product that is in an UNOPENED, RE-SALEABLE condition within 30 days as long as it is not marked as clearance. Please contact us before doing this so we can confirm this ahead of time - we recommend using a recorded delivery service for any returns as you will be responsible for ensuring it reaches us.

Please get in touch to confirm a return by email or phone before sending anything back. When sending a return it is important that you include:

  • Your order number
  • Your name & a contact telephone number
  • The reason for return

We will try and get your return processed as quickly as possible but if you don't send this information it can delay the return.


If you have ordered something and it doesn't fit then we can exchange for a more suitable size, stock permitting, but you will have to pay the return postage.


Our customers have the right to cancel their orders within 14 days unless their order has been dispatched. After the order has been dispatched, it is the customers responsibility to return the item in a saleable condition and receieve either a full or partial refund.

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