






💥 Unlock your ultimate bulk with Reflex Instant Mass – because serious gains wait for no one!
Reflex Nutrition Instant Mass Heavyweight Protein Shake Mix is a premium mass gainer delivering over 1000 kcal, 60g of multi-source protein, and creatine per serving. Designed for hard gainers and athletes, it supports muscle growth, recovery, and weight gain with a clean ingredient profile including 18 vitamins and minerals. Its creamy vanilla flavor ensures indulgence without compromise, making it the go-to post-workout or bedtime shake for professionals committed to serious results.









| ASIN | B0F2G5GB57 |
| Age Range Description | Adult |
| Allergen Information | Contains: Gluten, Milk, Oat, Soy may contain, Wheat |
| Benefits | Meal Replacement, Muscle Growth, Weight Gain |
| Best Sellers Rank | 1,185 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 27 in Protein Supplements |
| Brand | Reflex |
| Brand Name | Reflex |
| Customer Reviews | 3.9 out of 5 stars 197 Reviews |
| Diet Type | Halal |
| Diet type | Halal |
| Flavour | Vanilla |
| Item Weight | 2 Kilograms |
| Item weight | 2 Kilograms |
| Manufacturer | Reflex Nutrition |
| Manufacturer Contact Information | Reflex Nutrition, Sea View Way,Brighton,BN2 6NT,United Kingdom |
| Manufacturer Part Number | 100076200019 |
| Model Number | 100076200019 |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product benefits | Meal Replacement, Muscle Growth, Weight Gain |
| Protein Source | Whey |
| Protein source | Whey |
| Recommended Uses For Product | During Workout, Post-Workout, Pre-Workout |
| Unit Count | 2000.0 gram |
M**E
Mixes very well and good quality ingredients
Vanilla was not the best flavour, however the quality and mixability of this product is amazing, never has it been so easy to drink over 1000 kcal in one sitting without feeling bloated or too full.
B**E
Tasty and plentiful
Great protein shake that helps top up your calories if you’re someone that struggles to keep your calories full, people keep buying chocolate and complaining about the taste however the vanilla is great! No powdery taste at all and i have it with milk, i recommend having half the shake (150g of powder with 300ml of liquid) and the other half if needed as 300g with 700ml can be quite hefty.
N**M
Quality
Tastes terrible portion sizes are way too big an overall quality isn't great
M**D
Horrible taste, Good for gains
good for what it does. tastes absoloutely disguisting though
J**S
Gain
Good quality product
G**H
Tastes bad but effective
Tastes awful, makes you very bloated, however should be good in the long run with 1000 calories and 60g of protein, just do not drink before a run
R**A
Very tasty
Early days but my granddaughter loves it
A**R
Great value for money
Just my two cents on this, been using it for a couple weeks now, I had been using optimum nutrition before this. In my opinion this is a major upgrade. I find this so much easier to digest than ON, doesn't leave me feeling bloated either. I can easily down a shake of this after a workout, something I definitely couldn't do with ON. The value for money is also so much better, similar amount of servings, should last you around 3 weeks, and if you subscribe and save you'll be saving a lot of money. I've been using this combined with a full body resistance band home workout with progressive overload (due to covid) and seeing fantastic results, this contains 18 vitamins as well by the way. And I've been seeing fantastic results, so I'm saving money in the gym, and in my workout nutrition. Also on another small note, the taste (I've got vanilla ice cream) takes a little to get used to, but now it's absolutely fine. Great purchase!
Trustpilot
2 weeks ago
3 weeks ago