---
product_id: 431312144
title: "Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder 55g Protein 10.3g BCAA'S, 73g Low GI Carbs 5,000mg Creatine & Added Vitamins (Strawberries & Cream, 4.35kg)"
brand: "reflex nutrition"
price: "€ 315.00"
currency: EUR
in_stock: true
reviews_count: 5
category: "Reflex Nutrition"
url: https://www.desertcart.sk/products/431312144-reflex-nutrition-one-stop-xtreme-serious-mass-protein-powder-55g
store_origin: SK
region: Slovakia
---

# 5,000mg Creapure Creatine boost 73g Low GI carbs from oats & barley 55g Protein per serving Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder 55g Protein 10.3g BCAA'S, 73g Low GI Carbs 5,000mg Creatine & Added Vitamins (Strawberries & Cream, 4.35kg)

**Brand:** reflex nutrition
**Price:** € 315.00
**Availability:** ✅ In Stock

## Summary

> 🔥 Fuel Your Gains with the Ultimate Mass Builder!

## Quick Answers

- **What is this?** Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder 55g Protein 10.3g BCAA'S, 73g Low GI Carbs 5,000mg Creatine & Added Vitamins (Strawberries & Cream, 4.35kg) by reflex nutrition
- **How much does it cost?** € 315.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/431312144-reflex-nutrition-one-stop-xtreme-serious-mass-protein-powder-55g)

## 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

- • **Smart Carb Complex:** 73g low GI carbs from organic oats, barley & trehalose for steady energy release
- • **All-in-One Muscle Fuel:** 55g premium grass-fed whey & micellar casein protein blend for sustained muscle growth
- • **Power-Packed Performance:** 5,000mg Creapure Creatine enhances explosive strength and recovery
- • **Advanced Recovery Support:** 10.3g BCAAs plus Beta Alanine, Betaine & Taurine to optimize muscle repair and endurance
- • **Clean & Certified Quality:** Halal, hormone-free, no added sugars or artificial colors, made in informed sport registered facility

## Overview

Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder delivers a powerhouse 55g protein blend from grass-fed whey and micellar casein, combined with 73g low GI carbs and 5,000mg Creapure Creatine per serving. Enhanced with 10.3g BCAAs, Beta Alanine, Betaine, Taurine, and digestive enzymes, it supports muscle growth, recovery, and sustained energy. Free from added sugars, soy, and artificial colors, this Halal-certified formula is designed for serious athletes seeking a clean, all-in-one mass gainer.

## Description

With 55g of Quattro time release protein this is arguably the most sophisticated protein blend in existence. Quattro is unique to One Stop XTREME and consists of three different types of whey protein in conjunction with pure undenatured micellar casein. Four of the best. The primary carbohydrate content of one stop XTREME is provided by a unique complex of organic oats and barley with naturally occurring vitamins, minerals and dietary fibre. Added to this is the designer low GI carbohydrate trehalose. EU source Grass Fed Whey Protein & Micellar Casein Contributes to growth and maintenance of Muscle Mass Creatine 5,000mg Increases physical performance in successive bursts of short-term, high intensity exercise 2,600mg Betaine Anhydrous 1,800mg added Beta Alanine 3,000mg added L-Leucine 1,500mg added L-Taurine Over 10 grams of B.C.A.A and Glutamine per serving Free from soy protein, creamers and oxide minerals.

Review: Complexe Protéines+glucides - Très content de ce complément qui contient des protéines sous plusieurs formes, whey, caséine micellaire, etc. Ainsi qu'une base glucidique sous forme de "farine" de céréales, et de la malto. La dose de 125g (environ) se dissout plutôt bien dans un gros shaker avec grille. Goût fraise sympa. J'ai ajouté une photo de la composition car elle manque dans le descriptif du produit et c'est dommage. J'en rachèterais
Review: du muscle - je prends ce produit après mes séances de musculation journalières les résultats apparaissent au bout d'une semaine de prise, pas d'effets secondaires je le recommande avec une préfèrence toutefois pour le gout banofee moins écoeurant

## Features

- One Stop Xtreme is our ultimate ALL IN ONE MASS muscle building PROTEIN POWDER. It has been formulated to replace the use of numerous supplements allowing body builders to simply take one shake and know their nutritional needs are covered, alongside a balanced healthy diet.
- One Stop Xtreme MASS PROTEIN delivers 55g of PROTEIN, 10.3g BCAA'S, 73g low GI carbohydrates, 5,000mg Creapure Creatine, LAB2PRO friendly bacteria and Digezyme digestive enzyme complex
- One Stop Xtreme MASS PROTEIN also contains Beta Alanine, Betaine Anhydrous and Taurine along with added vitamins and minerals that contribute to the maintenance of normal protein synthesis, normal function of the immune system and normal testosterone production.
- Reflex only uses whey protein derived from grass-fed cows ensuring premium quality
- Manufactured on an informed sport registered facility, suitable for vegetarians and made on a Halal certified site. Hormone free, no added sugars, artificial colours or soy protein.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004LBPJA0 |
| Age Range Description | Adult |
| Allergen Information | Barley, Egg may contain, Milk, Oat, Soy may contain, Wheat |
| Best Sellers Rank | #75,226 in Grocery ( See Top 100 in Grocery ) #1,920 in Protein Drinks |
| Brand | Reflex Nutrition |
| Brand Name | Reflex Nutrition |
| Customer Reviews | 4.2 out of 5 stars 83 Reviews |
| Diet Type | Halal |
| Diet type | Halal |
| Flavor | Strawberries & Cream |
| Flavour | Strawberries & Cream |
| Global Trade Identification Number | 05033579013084 |
| Item Dimensions | 20.3 x 20.3 x 30.1 centimeters |
| Item Nype Name | HEALTH_PERSONAL_CARE |
| Item Weight | 4350 Grams |
| Item height | 30.1 centimeters |
| Item weight | 4350 Grams |
| Manufacturer | Reflex Nutrition Ltd. |
| Material Type Free | Sugar Free |
| Material type free | Sugar Free |
| Number of Items | 1 |
| Package Type Name | Bottle |
| Product Benefits | Muscle Growth |
| Product benefits | Muscle Growth |
| Unit Count | 4350 Grams |

## Product Details

- **Brand:** Reflex Nutrition
- **Flavour:** Strawberries & Cream
- **Item weight:** 4350 Grams
- **Material type free:** Sugar Free
- **Diet type:** Halal

## Images

![Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder 55g Protein 10.3g BCAA'S, 73g Low GI Carbs 5,000mg Creatine & Added Vitamins (Strawberries & Cream, 4.35kg) - Image 1](https://m.media-amazon.com/images/I/718fLb6T-6L.jpg)
![Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder 55g Protein 10.3g BCAA'S, 73g Low GI Carbs 5,000mg Creatine & Added Vitamins (Strawberries & Cream, 4.35kg) - Image 2](https://m.media-amazon.com/images/I/71QOzdSPXIL.jpg)
![Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder 55g Protein 10.3g BCAA'S, 73g Low GI Carbs 5,000mg Creatine & Added Vitamins (Strawberries & Cream, 4.35kg) - Image 3](https://m.media-amazon.com/images/I/71Tab2x6D9L.jpg)
![Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder 55g Protein 10.3g BCAA'S, 73g Low GI Carbs 5,000mg Creatine & Added Vitamins (Strawberries & Cream, 4.35kg) - Image 4](https://m.media-amazon.com/images/I/71eszLV7oBL.jpg)
![Reflex Nutrition One Stop Xtreme Serious Mass Protein Powder 55g Protein 10.3g BCAA'S, 73g Low GI Carbs 5,000mg Creatine & Added Vitamins (Strawberries & Cream, 4.35kg) - Image 5](https://m.media-amazon.com/images/I/71m3SgrEmML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Complexe Protéines+glucides
*by L***E on 29 April 2019*

Très content de ce complément qui contient des protéines sous plusieurs formes, whey, caséine micellaire, etc. Ainsi qu'une base glucidique sous forme de "farine" de céréales, et de la malto. La dose de 125g (environ) se dissout plutôt bien dans un gros shaker avec grille. Goût fraise sympa. J'ai ajouté une photo de la composition car elle manque dans le descriptif du produit et c'est dommage. J'en rachèterais

### ⭐⭐⭐⭐⭐ du muscle
*by P***E on 20 September 2015*

je prends ce produit après mes séances de musculation journalières les résultats apparaissent au bout d'une semaine de prise, pas d'effets secondaires je le recommande avec une préfèrence toutefois pour le gout banofee moins écoeurant

### ⭐⭐⭐⭐⭐ Highly recommended
*by S***N on 7 September 2025*

Love these chocolate and strawberry and cookies are best flavours after a few days of having the shakes i know the difference in my self i feel so much better all round health wise energy strength concentration etc

## Frequently Bought Together

- Reflex Nutrition One Stop® Xtreme - Serious Mass Gainer - All in One Protein Powder - 55g Protein, 10.3g BCAAs, 5,000mg Creatine - Muscle Building Protein Shake (Strawberries & Cream, 4.35kg)
- Reflex Nutrition Omega 3 - Omega 3 Capsules High Strength: 1000mg Fish Oil Supplement with 330mg EPA & 220mg DHA - Support Heart Health & Brain Function - Maintain Normal Blood Pressure (90 Capsules)
- Reflex Nutrition Nexgen® Pro Multivitamins and Minerals for Immune Support (90 Caps) - For Active Lifestyles - Multi Mineral and Vitamins for Immune System - Vitamin D Magnesium Vitamin C Zinc

---

## 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.sk/products/431312144-reflex-nutrition-one-stop-xtreme-serious-mass-protein-powder-55g](https://www.desertcart.sk/products/431312144-reflex-nutrition-one-stop-xtreme-serious-mass-protein-powder-55g)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-23*