£35.03

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 (Vanilla Ice Cream, 2.03kg)

Black, One Stop Xtreme

Price data checked 1 day ago

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

Just dropped £3 this week. Amazon won't have told you.

£35 today · was £38 last week · was £32 last month

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 90 days • 90 data points

Historical
Generating forecast...
£37.99 £29.44 £31.31 £33.17 £35.04 £36.90 £38.77 08 March 2026 30 March 2026 21 April 2026 13 May 2026 05 June 2026

Price Distribution

Price distribution over 90 days • 7 price levels

Days at Price
Current Price
12 days 36 days 12 days 14 days 6 days · current 2 days 8 days 0 9 18 27 36 £30 £31 £32 £33 £35 £37 £38 Days at Price

Price Analysis

Most common price: £31 (36 days, 40.0%)

Price range: £30 - £38

Price levels: 7 different prices over 90 days

Description

One Stop Xtreme is your one stop shop to extremely quality gains. Want all your protein supplements in one shake? Look no further. One Stop® Xtreme weight gain milkshake from Reflex Nutrition is the ultimate choice for serious athletes and bodybuilders seeking comprehensive nutritional support in a single high protein shake. This high calorie weight gain protein powder is not just a supplement; it's a powerhouse blend designed to fuel intense training sessions and facilitate muscle gains. Formulated to replace a multitude of individual supplements, this bulking protein powder offers an impressive profile of 55g of protein, 10.3g of BCAAs, a combination of 71g of high and low GI carbohydrates, and a substantial 5,000mg of premium Creapure® Creatine per 145g serving. This meticulously crafted blend supports muscle recovery and sustained energy, making it ideal for those looking to bulk up effectively and efficiently. In addition to its core macronutrients, One Stop® Xtreme mass protein powder is enriched with the Digezyme® digestive enzyme complex and LAB2PRO® friendly bacteria, ensuring optimal nutrient absorption. Essential amino acids like L-Leucine, Beta Alanine, Betaine Anhydrous, and Taurine enhance the formula, further aiding in muscle repair. The comprehensive vitamin and mineral matrix in One Stop® Xtreme plays a crucial role in maintaining normal protein synthesis, immune system function, and normal testosterone production - essential for peak physical performance. With its smooth texture and superior taste of the powder, One Stop® Xtreme is not only effective but also enjoyable to consume. Available in both 2.03kg tubs (protein powder 2kg with 14 servings) and larger 4.35kg tubs (with 30 servings), Reflex's high calorie weight gain protein powder is designed to fit the needs of serious users: whether you're preparing for a competition or looking to exceed your personal bests, One Stop® Xtreme is your go-to supplement for achieving formidable results. Ingredients Whey Protein Concentrate (30%) (MILK), Maltodextrin, MILK Protein (12%) (of which 80% Micellar Casein, 20% Native Whey), OAT Flour, BARLEY Flour, Glutamine Peptides (WHEAT), Creatine Monohydrate (Creapure), L-Leucine, Flavouring, Betaine Anhydrous, Beta Alanine, L-Taurine, Magnesium Bisglycinate, Thickener (Cellulose Gum), L-Choline Bitartrate, Colour (Carotenes), Digestive Enzyme Complex (DigeZyme (Alpha-Amylase, Neutral Protease, Cellulase, Lactase, Lipase)), Sweetener (Sucralose), Vitamin C (L-Ascorbic Acid), Sweetener (Steviol Glycosides from Stevia), Zinc Bisglycinate, Vitamin E (D-Alpha Tocopherol Acetate), Selenium Enriched Yeast, Ferrous Bisglycinate, Protected Lactic Acid Bacteria (Bifidobacterium Bifidum, Lactobacillus Acidophilus, Lactobacillus Rhamnosus), Vitamin B3 (Nicotinamide), Copper Bisglycinate, Piperine (BioPerine), Vitamin A (Retinyl Acetate), Vitamin B5 (Calcium D-Pantothenate), Vitamin D3 (Cholecalciferol), Vitamin B6 (Pyridoxine Hydrochloride), Vitamin B1 (Thiamine Hydrochloride), Vitamin B2 (Riboflavin), Chromium Picolinate, Vitamin B9 (Folic Acid), Vitamin B7 (D-Biotin), Vitamin B12 (Methylcobalamin) Directions Recommended UsageMix 145g, which is approximately four and a half level 60ml measures (there is a scoop included in the tub) with 600ml of water and mix thoroughly in a shaker cup or blender.We recommend on training days that one serving is taken mid-morning between meals and one serving after a workout.On non-training days take two servings, one mid-morning between meals and one serving in the afternoon between meals. Safety Warning Not suitable for individuals under the age of 16 years. Box Contains 1 x 2.03kg container Manufacturer Contact Information Reflex Nutrition, Sea View Way, Brighton, BN2 6NT, UK

Key Features

All-in-One Weight Gainer To Simplify Your Supplement Routine: One Stop Xtreme has been formulated to replace the use of numerous supplements, allowing you to take only one protein shake to support muscle growth alongside a balanced healthy diet

High-performing Weight Gain Shake: One Stop Extreme high protein powder delivers a hit of protein, creatine, BCAAs and other beneficial nutrients to bodybuilders looking to make gains - contributing to the growth and maintenance of muscle mass

Boosting Stregth and Endurance: Reflex mass gainer protein powder contains creatine, that increases physical performance in successive bursts of short-term, high intensity exercise - With LAB2PRO friendly bacteria and Digezyme digestive enzymes

Nutritional Excellence: contains L-Leucine, Beta Alanine, Betaine Anhydrous and Taurine, along with essential vitamins and minerals aiding the maintenance of normal protein synthesis, function of the immune system and testosterone production

Premium Ingredients: Reflex only uses whey protein sourced from grass-fed cows, ensuring a high-quality weight gain protein powder that mixes well, with a smooth texture and a delicious taste

Produced in an Informed Sport Registered Facility: Suitable for vegetarians and Halal certified - Hormone-free, zero added sugars, artificial colors or soy protein, assuring a conscientious choice of food supplements for weight gain

Product Specifications

Colour
Black
Size
2.03kg
Domain
Amazon UK
Release Date
01 May 2023
Listed Since
07 April 2016

Barcode

No barcode data available

Similar Products You Might Like

USN Muscle Fuel Anabolic All-In-One Muscle Mass Gainer, Cookies & Cream Flavour - 2kg, 54g Protein Powder, 5g Creatine Powder & 5g BCAAs For Maximum Muscle Growth, Post Workout Recovery Drink Mix
84% match

USN Muscle Fuel Anabolic All-In-One Muscle Mass Gainer, Cookies & Cream Flavour - 2kg, 54g Protein Powder, 5g Creatine Powder & 5g BCAAs For Maximum Muscle Growth, Post Workout Recovery Drink Mix

USN

£36.99 30 May 2026
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine Monohydrate and Glutamine, Banana, 8 Servings, 2.73kg, Packaging May Vary
84% match

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine Monohydrate and Glutamine, Banana, 8 Servings, 2.73kg, Packaging May Vary

Optimum Nutrition

£36.99 04 Jun 2026
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Cookies and Cream, 8 Servings, 2.73 kg, Packaging May Vary
83% match

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Cookies and Cream, 8 Servings, 2.73 kg, Packaging May Vary

Optimum Nutrition

£36.99 06 Jun 2026
Reflex Nutrition Plant Based Protein - 21g Vegan Protein Powder (Pea Protein, Brown Rice Protein & Pumpkin Seeds) - Digestive Enzymes & Vitamin B12 - Natural Flavours (Cacao & Caramel, 20 Servings)
81% match

Reflex Nutrition Plant Based Protein - 21g Vegan Protein Powder (Pea Protein, Brown Rice Protein & Pumpkin Seeds) - Digestive Enzymes & Vitamin B12 - Natural Flavours (Cacao & Caramel, 20 Servings)

Reflex Nutrition

Out of Stock 05 Jun 2026
The Bulk Protein Company Serious Gainz Mass Gainer Protein Powder Whey Vegetarian Banana 5 kg B142-BA
81% match

The Bulk Protein Company Serious Gainz Mass Gainer Protein Powder Whey Vegetarian Banana 5 kg B142-BA

The Bulk Protein Company

£39.99 17 May 2026
Optimum Nutrition 100% Gold Standard Whey Protein Powder, 24g Protein, French Vanilla Creme, BCAA, low-sugar, Fast‑Digesting Isolate for Muscle Gain & Recovery, 900 g, 30 Servings
81% match

Optimum Nutrition 100% Gold Standard Whey Protein Powder, 24g Protein, French Vanilla Creme, BCAA, low-sugar, Fast‑Digesting Isolate for Muscle Gain & Recovery, 900 g, 30 Servings

Optimum Nutrition

£36.92 03 Jun 2026
MaxiNutrition Progain - Vanilla, Whey Protein Shake for Size & Mass - 1.2kg - Per 120g Serving: 526 Calories, 30g Protein. NO Artificial Colours, Flavours & THICKENERS. Suitable for Vegetarians.
81% match

MaxiNutrition Progain - Vanilla, Whey Protein Shake for Size & Mass - 1.2kg - Per 120g Serving: 526 Calories, 30g Protein. NO Artificial Colours, Flavours & THICKENERS. Suitable for Vegetarians.

MaxiNutrition

£43.43 05 Jun 2026
Applied Nutrition Original Critical Mass - Weight Gainer with MCT Powder, High Calorie Protein Powder Mass Gainer (6kg - 25 Servings) (Cookies 'N' Cream)
81% match

Applied Nutrition Original Critical Mass - Weight Gainer with MCT Powder, High Calorie Protein Powder Mass Gainer (6kg - 25 Servings) (Cookies 'N' Cream)

Applied Nutrition

£41.45 04 Jun 2026
Applied Nutrition Beef Mass Gainer Protein Powder – 42g Beef Protein Isolate, High Calorie Weight Gainer Supplement, Lactose Free, Low Sugar (3.13kg – 25 Servings) (Frozen Berries)
80% match

Applied Nutrition Beef Mass Gainer Protein Powder – 42g Beef Protein Isolate, High Calorie Weight Gainer Supplement, Lactose Free, Low Sugar (3.13kg – 25 Servings) (Frozen Berries)

Applied Nutrition

£44.95 30 May 2026
Applied Nutrition Original Critical Mass - Weight Gainer with MCT Powder, High Calorie Protein Powder Mass Gainer (6kg - 25 Servings) (Chocolate)
80% match

Applied Nutrition Original Critical Mass - Weight Gainer with MCT Powder, High Calorie Protein Powder Mass Gainer (6kg - 25 Servings) (Chocolate)

Applied Nutrition

£41.46 06 Jun 2026
Applied Nutrition Original Critical Mass - Weight Gainer with MCT Powder, High Calorie Protein Powder Mass Gainer (6kg - 25 Servings) (Strawberry)
80% match

Applied Nutrition Original Critical Mass - Weight Gainer with MCT Powder, High Calorie Protein Powder Mass Gainer (6kg - 25 Servings) (Strawberry)

Applied Nutrition

£41.58 04 Jun 2026
Applied Nutrition Beef Mass Gainer Protein Powder – 42g Beef Protein Isolate, High Calorie Weight Gainer Supplement, Lactose Free, Low Sugar (3.13kg – 25 Servings) (Pineapple Millions)
80% match

Applied Nutrition Beef Mass Gainer Protein Powder – 42g Beef Protein Isolate, High Calorie Weight Gainer Supplement, Lactose Free, Low Sugar (3.13kg – 25 Servings) (Pineapple Millions)

Applied Nutrition

£44.96 03 Jun 2026
Applied Nutrition Critical Whey Protein Powder – 24g Protein per Serving, High Protein Powder, Protein Shake with BCAAs & Glutamine – Muscle Growth & Recovery (2Kg - 61 Servings) (Chocolate)
80% match

Applied Nutrition Critical Whey Protein Powder – 24g Protein per Serving, High Protein Powder, Protein Shake with BCAAs & Glutamine – Muscle Growth & Recovery (2Kg - 61 Servings) (Chocolate)

Applied Nutrition

£47.99 30 May 2026
OLIMP SPORT NUTRITION Olimp Labs Gain Bolic 6000 Powder, Chocolate Flavour, 3.5 kg
79% match

OLIMP SPORT NUTRITION Olimp Labs Gain Bolic 6000 Powder, Chocolate Flavour, 3.5 kg

OLIMP SPORT NUTRITION

£50.29 17 May 2026
Protein Works | Whey Protein 360 - Platinum Innovation, Premium Whey Protein Blend, Electrolytes, Probiotics, Digestive Enzymes, 26 Vitamins & Minerals, Strawberries 'n' Cream, 34 Servings, 1.2kg
78% match

Protein Works | Whey Protein 360 - Platinum Innovation, Premium Whey Protein Blend, Electrolytes, Probiotics, Digestive Enzymes, 26 Vitamins & Minerals, Strawberries 'n' Cream, 34 Servings, 1.2kg

Protein Works

£28.49 16 May 2026
MaxiNutrition Cyclone, Orange, Clear Whey Protein Isolate + Creatine, Glutamine & HMB, Added Zinc - Low in Sugar and Zero Fat, 35g Protein per Serve - 1.26kg - NO Artificial Colours OR Flavours
78% match

MaxiNutrition Cyclone, Orange, Clear Whey Protein Isolate + Creatine, Glutamine & HMB, Added Zinc - Low in Sugar and Zero Fat, 35g Protein per Serve - 1.26kg - NO Artificial Colours OR Flavours

MaxiNutrition

£64.99 01 Jun 2026
Bulk Vegan Protein Powder, Plant Based Protein Shake, Vanilla, 2.5 kg, New & Improved Formula, 71 Servings, Packaging May Vary
77% match

Bulk Vegan Protein Powder, Plant Based Protein Shake, Vanilla, 2.5 kg, New & Improved Formula, 71 Servings, Packaging May Vary

Bulk

£42.99 18 May 2026
Olimp Whey Protein Xplode Powder - 2250g - Chocolate
77% match

Olimp Whey Protein Xplode Powder - 2250g - Chocolate

OLIMP SPORT NUTRITION

£57.50 27 May 2026
Bulk Pure Whey Isolate 97 Powder, Protein Shake, Unflavoured, 2.5 kg
77% match

Bulk Pure Whey Isolate 97 Powder, Protein Shake, Unflavoured, 2.5 kg

Bulk

£105.61 01 Jun 2026
BioTechUSA Micellar Casein Protein Powder | Extended Absorbtion time | Gluten-Free, and Fat-Free | Added L-Glutamine, 2.27 kg, Vanilla
77% match

BioTechUSA Micellar Casein Protein Powder | Extended Absorbtion time | Gluten-Free, and Fat-Free | Added L-Glutamine, 2.27 kg, Vanilla

BioTechUSA

£58.42 23 May 2026
Bulk Vegan Protein Powder, Plant Based Protein Shake, Caramel Latte Flavour, 2.5 kg, New & Improved Formula, 71 Servings, Packaging May Vary
77% match

Bulk Vegan Protein Powder, Plant Based Protein Shake, Caramel Latte Flavour, 2.5 kg, New & Improved Formula, 71 Servings, Packaging May Vary

Bulk

£42.99 19 May 2026
Bulk Vegan Protein Powder, Plant Based Protein Shake, Unflavoured, 2.5 kg, New & Improved Formula, 71 Servings, Packaging May Vary
77% match

Bulk Vegan Protein Powder, Plant Based Protein Shake, Unflavoured, 2.5 kg, New & Improved Formula, 71 Servings, Packaging May Vary

Bulk

£42.99 18 May 2026
Olimp Sport Nutrition Reanimator Pro (1425 g) - Fresh Apple
77% match

Olimp Sport Nutrition Reanimator Pro (1425 g) - Fresh Apple

OLIMP SPORT NUTRITION

£43.99 01 Jun 2026
Bulk Vegan Protein Powder, Plant Based Protein Shake, Chocolate Cookies, 2.5 kg, New & Improved Formula, 71 Servings, Packaging May Vary
76% match

Bulk Vegan Protein Powder, Plant Based Protein Shake, Chocolate Cookies, 2.5 kg, New & Improved Formula, 71 Servings, Packaging May Vary

Bulk

£42.99 18 May 2026