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🔥 Bulk smarter, recover faster, and own your gains with One Stop® Xtreme!
Reflex Nutrition One Stop® Xtreme is a premium all-in-one mass gainer protein powder designed for serious athletes and bodybuilders. Each 145g serving packs 55g of high-quality whey protein, 10.3g BCAAs, and 5,000mg of Creapure® creatine to support muscle growth, strength, and endurance. Enhanced with digestive enzymes and probiotics for optimal absorption, plus essential vitamins and minerals to maintain immune and hormonal health. Free from added sugars, artificial colors, and hormones, it’s Halal certified and suitable for vegetarians, making it a clean, convenient, and effective choice for anyone committed to maximizing muscle gains and recovery.










| ASIN | B09JL8FPX4 |
| Age Range Description | Adult |
| Allergen Information | Contains: Hazelnuts, Milk, Mustard |
| Benefits | Muscle Growth |
| Best Sellers Rank | 16,889 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 114 in Protein Nutrition Blends |
| Brand | Reflex Nutrition |
| Brand Name | Reflex Nutrition |
| Country Of Origin | United Kingdom |
| Customer Reviews | 3.9 out of 5 stars 13 Reviews |
| Diet Type | Halal |
| Diet type | Halal |
| Flavour | Blueberry |
| Global Trade Identification Number | 05033579001883 |
| Item Weight | 4350 Grams |
| Item weight | 4350 Grams |
| Manufacturer | Reflex Nutrition |
| Manufacturer Contact Information | Reflex Nutrition, Sea View Way, Brighton, BN2 6NT, UK |
| Manufacturer Part Number | 100041435077 |
| Material Type Free | Sugar Free |
| Model Name | Reflex Nutrition One Stop Xtreme Serious Mass PROTEIN POWDER 55g PROTEIN 10.3g BCAA'S, 73g low GI carbs 5,000mg Creatine & Added Vitamins |
| Model Number | One Stop Xtreme |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product benefits | Muscle Growth |
| Protein Source | Whey |
| Recommended Uses For Product | Post-Workout |
| Supplement Formulation | Multi-Supplement |
| Unit Count | 4350.0 gram |
H**R
Good taste protein, recommend it!
Good stuff, i like it. Very fast delivery, good blueberry taste, right price. Prop seller!
A**L
No scoop included any more
£50 and no scoop included any more…
P**L
Who comes up with these flavours?
Tastes like a mixture of tea and washing up liquid Very disappointing
A**H
Ridiculous scoop
Great powder but you’ll throw most of it away. The absolutely ridiculous scoop is virtually impossible to get out the tub without spillage and is so big you can’t pour it into blender or shaker without mess. Sort it out Reflex! Would be 5* if I didn’t feel I was throwing most of down the sink
I**N
Very good
Works so well for me
D**D
Recommended
Recommended
Trustpilot
3 days ago
3 weeks ago