

🏆 Bulk smarter, recover faster, and taste the victory with every creamy sip!
Reflex Nutrition Instant Mass Heavyweight is a premium mass gainer delivering over 1000 calories and 60g of multi-source protein per serving, enhanced with 5g creatine and 18 vitamins and minerals. Designed for hard gainers and serious athletes, it supports muscle growth, recovery, and sustained energy with a clean, Halal-certified formula free from added sugars and artificial colors. The indulgent Chocolate Perfection flavor makes bulking a delicious, convenient experience.









| ASIN | B01E483MDK |
| Age Range Description | Adult |
| Allergen Information | Contains: Egg may contain, Milk, Oat, Soy, Wheat |
| Benefits | Muscle Growth |
| Best Sellers Rank | 1,235 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 13 in Protein Nutrition Blends 33 in Diet Shakes |
| Brand | Reflex |
| Brand Name | Reflex |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.1 out of 5 stars 623 Reviews |
| Diet Type | Halal |
| Diet type | Halal |
| Flavour | Chocolate |
| Global Trade Identification Number | 05033579001500 |
| Item Dimensions | 20.3 x 20.3 x 25 centimetres |
| Item Nype Name | HEALTH_PERSONAL_CARE |
| Item Weight | 2000 Grams |
| Item weight | 2000 Grams |
| Manufacturer | Reflex Nutrition Ltd |
| Manufacturer Contact Information | Reflex Nutrition, Sea View Way, Brighton, BN2 6NT, UK |
| Manufacturer Part Number | 100044200030 |
| Material Type Free | Caffeine Free, GMO Free |
| Model Name | Reflex Nutrition Instant Mass Heavyweight | Mass Protein Powder |
| Model Number | Instant Mass Heavyweight Protein |
| Net Content Volume | 10.4 Litres |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product benefits | Muscle Growth |
| Protein | 60 g |
| Protein Source | Whey |
| Recommended Uses For Product | During Workout, Post-Workout, Pre-Workout |
| Supplement Formulation | Multi-Supplement |
| Unit Count | 2000.0 gram |
B**S
Great Taste...
If not a little thick, but then again, there's no real way around this. If you're going to try and cram over 1000 calories into a drink, then you will expect some thickness. To balance this, the chocolate flavour is delicious compared to some of the others i've tried. Mix it with a little milk and water and it's like a lovely milkshake. I use this to help top up my daily intake, sometimes rushing around all day in my job, I can't get access to some chicken / rice and yogurt with berries like some of these social media experts, so it's nice and easy to have a few heaps of this in a shake. As with all these protein shakes these days, it's quite expensive - but again, cheaper than some competitors. Seems to be working and helping with putting on weight / muscle, it's only been a month. Will definitely purchase again.
B**E
It works
I bought this for my son to have extra calories as he's underweight due to having Arfid, I've bought other ones before which sadly had to be binned as he didn't like the taste or consistency, He told me he'd like to try a different one again as he was fed up being so underweight, so after doing some research we decided on this one, Thankfully he likes the taste, I mix it with whole milk and also add in some Chocolate nesquick powder, He is 22 years old and is 5"9 tall, his weight 10 days ago before starting this protein powder was 8 stone 2, today just 10 days later his weight is dead on 9 stone the heaviest he's ever been, I can honestly say I got quite emotional to see his weight go up so much in such a short space of time, especially as he had a huge smile on his face once he realized he'd put on so much weight. As a mother of a son with this condition, his weight has always been a huge worry to the point of losing sleep. I've just placed another order as a subscription as this stuff has been a godsend. So Thank you so much <3 edit.. my son now weighs on 29th dec 9 stone 7, and for the first time is his life is classed on the lower end of being a healthy weight, we will continue using to keep his weight up hoping to get past the 10 stone weight soon.
C**S
Reflex nutrition
Got my tub thanks . Why do you make the tub so big and only fill below half of it 🤷🏻♂️
J**A
Does what you need!
I'm currently trying to bulk and I find these incredibly helpful. I used to use Bulk, the only issue I had was they added a thickener to their product and it made the shake so thick it made me gag whenever I tried to drink it!! With this, I usually put 3 scoops instead of the 5 and 300ml of milk and its wonderful! Yeah there are a few clumps here and there but I dont mind it as I just chug it all in one go. I struggle to eat enough throughout the day so this is great! I also use the powder to make high protein high calorie pancakes and theyre delicious! It's sealed well I havent had any issues with it so far. Ive had 2 flavours, the strawberry and the chocolate. So far im preferring the strawberry one but the chocolate isnt that bad. Great product and would recommend to others:)
A**R
info rather than review
cant knock the product , it actually gave me a bad stomach so had to stop using it before i could give it a fair review, taste isnt great but bearable , everyones different and this is just my experience, im not saying it wont work , it certainly has all the right ingredients
U**1
Nope
Tastes like crap hard to mix and full of maltodextrin
E**M
Amaaazing, I need to stock up. Helps me gain weight. Best one yet! Highly recommend.
This drink is soo good omg I love how high the calorie intake is, it’s over 1,000 calories I’ve lost weight due to a stupid toxic relationship I’m exiting and was struggling to keep up the daily calorie intake. Now this drink here with a work out after is doing me right lol. It gives me more of an appetite aswell come lunch time and just throughout the day. So I’ll drink one a day in the morning 5 scoops and I use oat milk and some crushed ice tiny scoop of brown sugar (blended until smooth) amazing. Sometimes i bulk it out more by adding a whole banana, a spoonful of peanut butter and a tablespoon of porridge oats. yum. Tried it with water as suggested and really wasn’t for me, flavour wise. Not great. Will definitely be ordering more. (edit I'm on my 7th tub lol) Only downside is when you open the tub lol liiiike who’s been at this already. Looking like half’s missing smh but I guess the content amount is stated in the description, just don’t get the need for such a big tub. Its misleading. ****** 26th July 24 so this is the first tub I’ve had that hasn’t come with a blue measuring cup. Not great because I like it to be precise. I’ll have to buy a small jar / cup that holds the equivalent of what the blue measuring cup would. Not good.
S**N
Works
Flavour really nice chocolate and strawberry cookies creams
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