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Reflex Nutrition One Stop Xtreme - All-In-One Gainer Powder
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Reflex Nutrition One Stop Xtreme

Sale price  £36.49 Regular price  £44.49
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FOR SAME DAY DISPATCH
  • Build serious size and strength faster with 55g of complete protein and 5g Creapure creatine per serving.
  • Power through intense sessions with 73g of low-GI carbohydrates for steady, sustained training energy.
  • Speed up recovery with 10.3g BCAAs, glutamine peptides, and added beta-alanine to support performance.
  • All-in-one convenience replaces multiple tubs—protein, carbs, creatine, aminos, vitamins, enzymes and probiotics in one shake.
  • Clean, athlete-trusted quality: grass-fed whey, made on a Halal-certified, Informed-Sport registered site with no added sugars or artificial colours.

Reflex Nutrition One Stop Xtreme 4.3kg – Vanilla

If your goal is lean mass, strength, and results you can see in the mirror and feel in the gym, Reflex Nutrition One Stop Xtreme has your back. This powerful all-in-one mass and strength gainer takes the guesswork out of bulking by delivering high-quality protein, performance carbs, clinically researched Creapure creatine, essential amino acids, and supportive micronutrients—without the clutter of multiple products.

What makes One Stop Xtreme different?

Each 145g serving (approximately 4.5 scoops) is built to fuel serious training and recovery:

  • 55g high-quality protein from grass-fed whey to support muscle growth and repair.
  • 73g low-GI carbohydrates for smooth, sustained energy—ideal post-workout or between meals.
  • 5,000mg Creapure creatine to support strength and performance in repeated high‑intensity efforts.
  • 10.3g BCAAs (10,500mg) plus 10,000mg glutamine peptides to support recovery.
  • Beta-alanine, betaine, taurine and more to round out a complete performance formula.

Clean formula. Serious standards.

Reflex Nutrition sources whey from grass-fed cows and manufactures on an Informed-Sport registered site for athlete confidence. It’s suitable for vegetarians, produced on a Halal-certified site, and contains no added sugars, no artificial colours, and no soy protein. Digestive enzymes (DigeZyme) and probiotic spores (LactoSpore) are included to support a gut-friendly shake you can use daily.

Who is it for?

  • Hard gainers who struggle to eat enough to grow.
  • Busy athletes who want results without juggling multiple supplements.
  • Strength and power athletes chasing extra reps, sets and load.
  • Team sport players looking for reliable recovery between sessions.

How to use

Mix one serving (4.5 scoops/145g) with cold water or milk and enjoy 1–2 times per day. Ideal after training and/or between meals to top up protein, carbs and creatine intake as part of a balanced diet and training plan.

Nutritional Information

Each serving of Reflex Nutrition One Stop Xtreme contains:

More Information

Introducing the 4.35kg tub of Reflex Nutrition One Stop Xtreme Vanilla, perfect for post-workout recovery and muscle growth support.

This product is barcode: 5033579013091.

Protein 19g g
0%
RDI
Fat 0.5g g
0%
RDI
Salt 0 g
0%
RDI
Carbs 7.5g g
0%
RDI
Values per serving
Please note that this information may be subject to change.
For the most accurate and up-to-date details, please refer to the product packaging.

Serving Size

290g

Expiry

2.03kg / Chocolate Perfection 31-08-2026
2.03kg / Strawberries & Cream 31-12-2026
2.03kg / Vanilla Ice Cream 30-11-2026
4.35kg / Blueberry 30-09-2025
4.35kg / Salted Caramel 30-04-2026
4.3kg / Chocolate Perfection 30-06-2026
4.3kg / Cookies & Cream 30-06-2026
4.3kg / Vanilla 31-08-2026

Barcodes

2.03kg / Chocolate Perfection 5033579013114
2.03kg / Strawberries & Cream 5033579013121
2.03kg / Vanilla Ice Cream 5033579013138
4.35kg / Blueberry 5033579001883
4.35kg / Salted Caramel 5033579001890
4.3kg / Chocolate Perfection 5033579013077
4.3kg / Cookies & Cream 5033579013152
4.3kg / Strawberries & Cream 5033579013084
4.3kg / Vanilla 5033579013091

Directions

Mix 145 g (approximately one level 250 ml measure) with 600 ml water until powder has fully dissolved. Take a shake mid-morning between meals and a shake after your workout.

Warnings

This product is a food supplement and should be used in conjunction with food as part of a healthy and varied diet, not as a substitute for such. Recommended daily consumption is 290 g of product. Do not exceed the stated recommended daily dose. This product is not intended for use by persons under the age of 18. Keep out of reach of young children. The scoop included with this product measures by volume not by weight. for precise measurements please use measuring scales. This product is sold by weight, not by number of servings. This product has been manufactured in a facility which is routinely tested for banned substances. See website for details.

Ingredients

  • Citrulline Malate
  • Branched-Chain Amino Acid Blend (L-Leucine
  • L-Isoleucine
  • L-Valine
  • Emulsifier (Sunflower Lecithin))
  • Beta Alanine
  • Maltodextrin
  • Betaine Anhydrous
  • L-Carnitine L-Tartrate
  • Flavouring
  • L-Taurine (L-Taurine
  • Anti-Caking Agent (Silicon Dioxide))
  • Sodium Bicarbonate
  • Sweetener (Steviol Glycosides)
  • Colour (Betanin)
  • Anti-Caking Agents (Calcium Silicate
  • Silicon Dioxide)
  • Colour (Carotenes)
  • Grape Seed Extract
  • Pine Bark Extract
  • Vitamin B12 (Maltodextrin
  • Anti-Caking Agent (Calcium Silicate)
  • Methylcobalamin)
  • Vitamin B6 (Pyridoxine Hydrochloride). Folic Acid (Pteroylmonoglutamic Acid
  • Maltodextrin). Please Note: Nutritional facts and ingredients may vary slightly between flavours.

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