--- product_id: 53918824 title: "Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg)" brand: "reflex nutrition" price: "1096.90 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/53918824-reflex-nutrition-instant-mass-heavyweight-mass-gainer-over-1000-kcal store_origin: TN region: Tunisia --- # Creatine for explosive power 60g premium muscle-building protein 1000+ kcal per serving Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg) **Brand:** reflex nutrition **Price:** 1096.90 DT **Availability:** ✅ In Stock ## Summary > 🏋️‍♂️ Bulk smarter, recover faster, dominate harder! ## Quick Answers - **What is this?** Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg) by reflex nutrition - **How much does it cost?** 1096.90 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/53918824-reflex-nutrition-instant-mass-heavyweight-mass-gainer-over-1000-kcal) ## Best For - reflex nutrition enthusiasts ## Why This Product - Trusted reflex nutrition brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Massive Calorie Surge:** Fuel your gains with over 1000 calories per shake—perfect for serious bulkers who refuse to settle. - • **Clean & Trusted Formula:** Grass-fed whey, zero added sugars, Halal certified, and produced in an Informed Sport registered facility—quality you can flex with pride. - • **Quadruple Protein Power:** 60g of fast-absorbing whey blends plus slow-release micellar casein for all-day muscle growth and recovery. - • **Vitamin & Mineral Boost:** 18 essential vitamins and minerals support your energy, immunity, and recovery—because gains need more than just protein. - • **Creatine-Enhanced Performance:** Scientifically backed creatine boosts your high-intensity workout output and stamina. ## Overview Reflex Nutrition Instant Mass Heavyweight is a premium mass gainer delivering over 1000 kcal and 60g of multi-source protein per serving, enhanced with creatine and 18 vitamins and minerals. Designed for hard gainers and athletes, it supports rapid muscle growth, sustained energy release, and optimal recovery with a clean, trusted formula free from added sugars and artificial colors. ## Description Product Description Reflex Nutrition’s Instant Mass Heavyweight protein powder is developed for hard gainers and athletes seeking a quality blend of proteins and complex carbohydrates. With over 1000 calories per shake, this bulking protein powder formula fuels your body with substantial quantities of macronutrients for building and maintaining muscle mass. Our protien blend combines four premium sources of whey protein with slow-releasing micellar casein, catering to both immediate and sustained amino acid delivery. The Whey Protein Concentrate is carefully processed to preserve its purity, while Hydrolysed Whey Protein is enzymatically treated for rapid absorption. Together with Native Whey, these form a full-spectrum protein assault that contributes effectively to muscle growth and recovery. Instant Mass Heavyweight bodybulding supplement is crafted with a multifaceted carbohydrate matrix. This intelligent carb blend sidesteps the pitfalls of simple sugars and syrups, opting instead for a sustained-release energy supply - It's the perfect partner for the long, intense workout sessions. Each serving of protein supplements is also power-packed with 18 added vitamins and minerals, amplifying the nutrition profile and supporting your body’s demands through all phases of training - whether you’re prepping, pushing through, or in post-workout recovery, Reflex's weight gain protein powder formula will help you achieve your goals. Incorporated into this mix is creatine powder, scientifically proven to increase physical performance in successive bursts of short-term, high-intensity exercise, ideal for those aiming to dominate in their sport. This high protein shake is available in two sizes to accommodate your training intensity and frequency (protein powder 2kg and protein powder 5.4kg). Choose your flavour from a variety including traditional favourites and exciting new taste profiles (vanilla protein powder, strawberry protein powder, chocolate protein powder and more). Ingredients Ingredients: Maltodextrin, Glutamine Peptides (WHEAT), OAT Flour, Whey Protein Concentrate (MILK Emulsifier (SOYA Lecithin)), Cocoa Powder, MILK Protein (of which 80% Micellar Casein, 20% Native Whey), Hydrolysed Whey Protein (MILK), Creatine Monohydrate (Creapure*), Flavouring, L-Glutamine, Magnesium Citrate, L-Choline Bitartrate, Vitamin C (L-Ascorbic Acid), 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). Vitamn 05 (Cholecalciferol), Vitamin B6 (Pyridoxine Hydrochloride), Vitamin B2 (Riboflavin), Vitamin BI (Thiamine Hydrochloride), Chromium Picolinate, Vitamin B9 (Folic Acid), Vitamin B7 (D-Biotin), Vitamin B12 (Methylcobalamin). P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions For a full serving mix 300 g (approximately five heaped 60ml measures with 700 ml water in a suitable shaker cup or blender, mix until smooth. This product is intended for adults performing high-intensity exercise. 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. Safety Warning This product is a food supplement and should be used in conjunction with food as part of a varied and balanced diet and healthy lifestyle, not as a substitute for such. Recommended consumption is one 300 g serving per day. Do not exceed the stated recommended daily dose. This product is not intended for use by persons under the age of 18. Keep out of reach of young children. The scoop included with this 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. This product has been manifactured in a facility which is routinely tested for banned substances. Protein contributes to the growth and maintenance of muscle mass. Creatine increases physical performance in successive bursts of short-term, high intensity exercise. The beneficial effect is obtained with a daily intake of 3 g of creatine. Box Contains 1 x Instant Mass Heavyweight - 5.4kg - Vanilla Ice Cream Manufacturer Contact Information Reflex Nutrition, Sea View Way, Brighton, BN2 6NT, UK See more ## Features - Engineered for Gains: This seamless protein shake mix is specifically formulated to accelerate muscle and weight gains and improve post-workout recovery, enhancing overall workout performance for the dedicated, hard gainer and serious athlete alike - Excellent Nutrition Profile: Packed with quality ingredients, each protein shake serving delivers over 1000 kcals, 200g of complex carbohydrates, 60g of muscle gain protein, critical EAAs, creatine, 18 vitamins and minerals (B12, B6, C, Iron, Zinc) - Outstanding Taste Sensation: Our Vanilla Ice-Cream mass gainer flavour isn't just a treat for your taste buds - it's a deliciously creamy escape into indulgence with every sip, all while you are fueling your body for mass gain and muscle recovery - Optimal Timing for Maximum Impact: Consume Instant Mass Heavyweight high protein shake between meals for a positive nitrogen balance, 20-30 minutes post workout for best results or 45-60 minutes before sleep to aid overnight muscle maintenance - Trusted Quality Assurance: Reflex Nutrition's promise to quality means whey protein powder from grass-fed cows - Protein Sources are Glutamine Peptides, Whey Protein Concentrate, Milk Protein, Hydrolysed Whey Protein - Produced in an Informed Sport Registered Facility - Suitable for vegetarians and Halal certified - Zero added sugars, artificial colors, or soy protein, assuring a conscientious choice of weight gainer for your muscle-building objectives ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00KAB0LJ4 | | Country Of Origin | United Kingdom | | Guaranteed Software Updates Until | unknown | | Is Discontinued By Manufacturer | No | | Item Model Number | Instant Mass Heavyweight Protein | | Manufacturer | Reflex Nutrition | | Product Dimensions | 13 x 38 x 45.5 cm; 5.4 kg | ## Product Details - **Brand:** Reflex Nutrition - **Diet type:** Halal - **Flavour:** Vanilla - **Item weight:** 5400 Grams - **Material Type Free:** Caffeine Free, GMO Free - **Number of items:** 1 - **Product benefits:** Muscle Growth - **Protein source:** Whey - **Recommended uses for product:** Post-Workout - **Unit count:** 5400.0 gram ## Images ![Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg) - Image 1](https://m.media-amazon.com/images/I/71r8VHTCaSL.jpg) ![Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg) - Image 2](https://m.media-amazon.com/images/I/61kkNfic-nL.jpg) ![Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg) - Image 3](https://m.media-amazon.com/images/I/81gCZBQxHPL.jpg) ![Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg) - Image 4](https://m.media-amazon.com/images/I/81Z+kbLeSGL.jpg) ![Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg) - Image 5](https://m.media-amazon.com/images/I/71UnaiCn4iL.jpg) ## Available Options This product comes in different **Size Name, Flavour Name** options. ## Questions & Answers **Q: Why isnt the nutritional info shown?!** A: The company sent me only half my order on multiple occasions and the wrong flavour. The fact that the nutritional info isnton there is no surprise **Q: how well does this mix in an ordinary shaker? i know some are clumpy and chalky tasting, thank you** A: Hi I would recommend blend for 7 seconds if that. If you have a good shaker and give it a good shake it will be just as smooth great mix chocolate for me taste wonderful **Q: Has it got any. Bcaa,s pls** A: Finished it a long time ago so don’t have the package. But i checked the photos and googled the BCAA’s and based on this, the product doesn’t have any of the 9 essential amino acids aka BCAA. So it’s a No and you’ll have to buy it separately. **Q: Good afternoon. is this the original reflex supplement. why is there a big difference in the price. why on amazon it is soo much cheaper** A: Good afternoon So basically if you want to sell something on a website like Amazon your price should be lower then the price you might sell individually by yourself, plus, Amazon and similar websites make profit by the quantity of the products being sold not individually that’s why they can break the price that low cause obviously they buy it for a low price in mass quantities. Even with the suppliers if you make a deal to buy a good amount of their products, you can get a good discount. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great price, poor taste *by on Reviewed in the United Kingdom 2 July 2020* taste is too sweet and sickly, however works great and the price is affordable ### ⭐⭐⭐⭐⭐ How good the product is *by on Reviewed in the United Kingdom 21 June 2026* This is great I always have the vanilla flavour .i add two scoops to my green smoothie it adds a great tasting flavour.Otherwise I sometimes just add it to a glass of milk . ### ⭐⭐⭐⭐ Excellent blend! Taste could be improved. *by on Reviewed in the United Kingdom 28 March 2026* Great blend of ingredients. It’s a little sweet so I think a little less sweetner would help, I’d prefer if it used Stevia sweetener instead. Overall taste of the vanilla flavour is not great but not that bad.At first I was alarmed to see the safety seal had a very tiny hole in its surface, but it turns out this is to equalise any pressure difference. I’ve never seen that on a safety seal and I’m not sure it’s a good idea but at least I know what it is now.Please always check the safety seal thoroughly!I would happily order another flavour next time and because of the ingredient blends this is my go to for ‘Da gainz’. ## Frequently Bought Together - Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Vanilla Ice-Cream, 5.4 kg) - Bulk Iconic Shaker Bottle, 750ml, Clear, Leak-Proof, BPA-Free, Wire Mixing Ball for Lump-Free Shakes, Convenient Carry Handle, Transparent Fill Level, Dishwasher Safe - Warrior Protein Shaker Bottle, Includes Wire Mixball Blender – 600ml – Perfect for Mixing Powdered Shakes, Clear, BPA Free, Dishwasher Safe --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/53918824-reflex-nutrition-instant-mass-heavyweight-mass-gainer-over-1000-kcal](https://www.desertcart.tn/products/53918824-reflex-nutrition-instant-mass-heavyweight-mass-gainer-over-1000-kcal) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-20*