Reflex : One Stop Xtreme Weight Gainer
Details
https://www.predatornutrition.com/weight-gainers/reflex/RFX1025%2F505%2F1079.htmlGoal: Build Muscle
- Reflex’s best all-in-one bodybuilding supplement
- EU source Grass Fed Whey Protein & Micellar Casein
- 5000mg of World’s Best Creapure® Creatine
- Efficacious doses of Betaine Anhydrous, Beta Alanine, L-Taurine and L-Leucine
- Zinc Matrix [Albion®] to support healthy testosterone levels and protein synthesis
- Over 10 grams of B.C.A.A and Glutamine per serving
Price per serving: £1.73
Promotions
Fast International delivery. Orders shipped same day. Secure Payment. 96% Customer Trust Rating.
Product Actions
UK Shipping
We offer FREE DELIVERY to UK for orders worth £40 or more and these are shipped using the 2-3 Day Delivery service fulfilled by Hermes. We also offer Free Next Working Day delivery with Hermes (on orders of £75). For SAME DAY DISPATCH, you need to place your order before 5PM GMT otherwise your order will be dispatched the following working day.
Service | Price | Notes |
FREE STANDARD DELIVERY | £0.00 | On orders over £40. |
STANDARD DELIVERY | £2.99 | On orders below £40. |
Hermes NEXT WORKING DAY | £3.99 | Free on orders over £75. *Excluding Northern Ireland, The Scottish Highlands & Islands |
DPD NEXT WORKING DAY | £4.99 | *Excluding Northern Ireland, The Scottish Highlands & Islands |
DPD SATURDAY DELIVERY | £6.99 | *Excluding Northern Ireland, The Scottish Highlands & Islands |
International Shipping
Please Note: Free shipping applies to the first parcel only. A surcharge payment may be required If your order needs to be shipped in multiple parcels.
Country | Price | Free Shipping |
Austria | £7.99 | Free on orders over £160 |
Australia | £7.99 * | Free on orders over £160 (under 2kg) ** |
Belgium | £4.99 | Free on orders over £160 |
Bosnia | £19.99 | Free on orders over £260 |
Bulgaria | £16.99 | Free on orders over £260 |
Canada | £7.99 * | Orders over £160 (under 2kg) ** |
Croatia | £11.99 | Free on orders over £260 |
Czech Republic | £10.99 | Free on orders over £190 |
Denmark | £6.99 | Free on orders over £160 |
Estonia | £12.99 | Free on orders over £260 |
Finland | £11.99 | Free on orders over £199 |
France | £5.99 | Free on orders over £135 |
Germany | £4.99 | Free on orders over £110 |
Greece | £12.99 | Free on orders over £260 |
Hungary | £11.99 | Free on orders over £260 |
Iceland | £19.99 | Free on orders over £260 |
India | £12.99 * | Doesn’t qualify for free shipping |
Indonesia | £12.99 * | Doesn’t qualify for free shipping |
Israel | £12.99 * | Doesn’t qualify for free shipping |
Italy | £7.99 | Free on orders over £160 |
Japan | £12.99 * | Doesn’t qualify for free shipping |
Kuwait | £12.99 * | Doesn’t qualify for free shipping |
Latvia | £12.99 | Free on orders over £260 |
Lithuania | £10.99 | Free on orders over £260 |
Luxembourg | £7.99 | Free on orders over £120 |
Malta | £9.99 | Doesn’t qualify for free shipping |
Netherlands | £4.99 | Free on orders over £110 |
New Zealand | £12.99 * | Doesn’t qualify for free shipping |
Norway | £6.99 - £13.99 | Free on orders over £210 |
Poland | £11.99 | Free on orders over £199 |
Portugal | £9.99 | Free on orders over £199 |
Qatar | £12.99 | Doesn’t qualify for free shipping |
Republic of Ireland | £4.99 | Free on orders over £125 |
Romania | £12.99 | Free on orders over £260 |
Saudi Arabia | £9.99 * | Doesn’t qualify for free shipping |
Serbia | £15.99 | Free on orders over £260 |
Singapore | £12.99 * | Doesn’t qualify for free shipping |
Slovakia | £9.99 | Free on orders over £190 |
Slovenia | £11.99 | Free on orders over £260 |
Spain | £8.99 | Free on orders over £160 |
Sweden | £9.99 | Free on orders over £199 |
Switzerland | £10.99 | Free on orders over £160 |
United Arab Emirates | £12.99 * | Doesn’t qualify for free shipping |
USA | £7.99 * | Free on orders over £135 (under 2kg) ** |
* Parcels over the weight of 2kg will be charged depending on the weight of the parcel.
**Parcels over the weight of 2kg will not qualify for FREE SHIPPING and therefore will be charged depending on the weight of the parcel.
Reflex One Stop Xtreme ingredients & nutrition facts
Reflex Nutrition One Stop Xtreme Chocolate Perfection 4.35kg | |||||||||||||||
Serving Size:4.5 scoops (145g) | |||||||||||||||
Servings Per Container:30 | |||||||||||||||
Per 100g | Per 290g daily serving | ||||||||||||||
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Ingredients:Premium Blend (42%) (of which Whey Protein Concentrate (71%)[Milk], Native Milk Protein (29%[of which 80% Micellar Casein, 20% Native Whey Protein ]), Low GI Carbohydrate Complex (20%) (of which OAT Flour [50%], Barley Flour [50%]), Maltodextrin, Glutamine Peptides (WHEAT), Cocoa Powder (chocolate varieties only), Creatine Monohydrate (Creapure),L-Leucine, Betaine Anhydrous, Flavourings, Beta Alanine, L-Taurine, Magnesium Bisglycinate, Thickener (Carboxymethyl Cellulose),L-Choline Bitartrate, Natural Colouring (Betanin [strawberry flavour only]),Enzyme Complex (DigeZyme), Sweetener (Sucralose), L-Ascorbic Acid, Colour (Beta Carotene [vanilla flavour only]), Sweetener (Stevia), Zinc Bisglycinate, Tocotreinols (DeltaGold), Iron Bisglycinate, Multi Component Protected Lactic Acid Bacteria (LAB2PRO [Bifidobacterium Bifidum, Lactobacillus Acidophilus, Lactobacillus Rhamnosus]), Nicotinamide, Copper Bisglycinate, Natural Colouring (Anthocyanin [strawberry flavour only]) Selenomethionine (Selenium SeLECT), Piperine Extract (Bioperine), Retinyl Acetate, D-Calcium Pantothenate, Cholecalciferol, Pyridoxine Hydrochloride, Thiamine Hydrochloride, Riboflavin, Chromium Picolinate, Folic Acid, D-Biotin, Methylcobalamin. | |||||||||||||||
Allergen Warning:For allergens, including cereals containing gluten, see ingredients in BOLD. Also may contain Egg and Soya. |
One Stop Xtreme dosage & how to use
Mix 145g (approximately four and a half level 60ml measures) with 400ml water and mix thoroughly in a shaker cup or blender. Take one serving mid-morning between meals and one serving after your workout. On non-training days take two servings, one mid-morning between meals and one serving in the afternoon between meals.Why
One Stop Xtreme is Reflex Nutrition’s very best all-in-one. Made with top-quality protein from grass-fed EU cows, high quality carbohydrates (not just sugars), Creapure creatine, a blend of vitamins and minerals to support healthy testosterone levels and improve overall health, and large doses of free form BCAAs such as Betaine Anhydrous, Beta Alanine, L-Taurine and L-Leucine, One Stop Xtreme contains just about every supplement you could conceivably need in a single product.
When
This product should be taken alongside an intensive resistance exercise programme for maximum results.
Who
This product is suitable for anyone involved in high intensity resistance-based training such as weightlifting. It will aid performance, recovery, and muscle growth, and weight gain. If you want a single supplement which does everything you need it to and nothing you don’t, this is it.
Product Guide
How it Works
Predator Nutrition One Stop Xtreme Review
One Stop Xtreme is Reflex's contender in the popular all-in-one category which is a large market in the United Kingdom. Compared to other products in this category such as Muscle Fuel Anabolic, One Stop Xtreme utilises a better source of protein and carbohydrates, two traditional hallmarks of supplements produced by Reflex Nutrition.
As well as this One Stop Xtreme provides a number of key ergogenics that will enhance performance and recovery for users:
BCAA's - The building blocks of muscle, these get broken down rapidly during exercise. BCAA's help to replace the amino acids lost during exercise as well as advancing the rate of muscle growth.
Creapure® - The most beneficial ingredient of all for boosting strength and performance, One Stop Xtreme uses the highest quality creatine on the market. Acting to boost the ability of users to sustain high intensity efforts such as lifting heavy weights or high velocity sprints, creatine can also aid with gaining lean body mass as it helps muscle cell volumisation.
Beta Alanine - Helps buffer lactic acid which in turn means you can push for more reps especially in high rep ranges. For athletes the presence of beta alanine in One Stop Xtreme means users can maintain a higher level of intensity in sports as diverse as football and swimming.
Betaine - Betaine is another supplement which has research supporting its ability to boost aerobic endurance. If you are an athlete such as a runner or a bodybuilder performing high rep protocols or cardio, betaine will ensure you can train harder than ever.
Digestive Aids - With the inclusion of both probiotics as well as digestive enzymes, One Stop Xtreme ensures that absorption is maximised.
The original One Stop remains a quality product for those seeking a lean all-in-one supplement, but One Stop Xtreme marks a step up for those seeking rapid gains in weight and strength. It contains just about everything a bodybuilder could ever need, all from the highest quality ingredients made to the most exacting standards. A superb all-in-one.
Cheap and helpful weight gainer.
with high grade protein and correct dosage of amino acids this is perfect for those who want to gain lean muscle. All the extra vitamins, minerals and zinc are really helpful. I have been using one stop extreme for a while now and I can certainly see results in muscle gains and overall health.It is a little clumpy when mixing but maybe it's just my shaker. Great taste go for strawberry.
Great product if you want to gain muscle and mass, very impressive!
This product is powerful! It's got all you need. Good amount of Creatine and Amino Acids to really make you ready for training every day!
Best all in one produkt i ever tried. This product became my No.1 to pack on some weight and muscle.
This is the 3rd time I have ordered One Stop Extreme. It is a brilliant product with all the calories, protein, BCAA's and Creatine that you could need. Taste and texture is very good especially for a mass gainer. I order the 4.35kg tub and it lasts around a month and I try to train 6 times a week. The scoop is a bit big and awkward to use so i just used a smaller scoop from previous protein powders.
I won't bark on about the quality of this product... everyone can see the ingredients and the nutritional information for themselves. however, this is the balls. realistically taste and mixability aren't that important, yet for me the chocolate is as good as ive had from the likes of myprotein/gold standard/bulkpowders aftermath etc etc. yes it does leave clumps. get over it and drink it. right... 2 tubs in. i found myself at a plateau, training was on point yet my lifts weren't going up (this was the case for a few months), now, i used to be a chubby kid. So the idea of drinking a relatively high (for me) carb shake was daunting, however, this really gave me those extra cals i think i must have been lacking as ive since smashed my pbs. and not just by a few kg. deadlift went up 10kg (finally broke 200- ok ok i know some here will be laughing but that was my everest) bench press up, squats up. think you get the idea. not only 1rm but also my reps increased. People in the gym have mentioned a noticeable increase in size which always makes you feel better. on a side note: i have IBS and this product doesn't upset my tummy at all, no bloat which is very rare for me and a reason why im staying clear of mass gainers for now. i have just over 1 serving a day... have 3 scoops PW and a scoop mid morning and one mid afternoon. really impressed overall and have made this my new shake for the next few months at least. Yes, i agree its slightly pricey, but considering the quality ingredients and results ive got I'm more than happy to buy it.
tried the vanilla, great taste , mixes well and I've packed on 10lb of muscle , I have it in my porridge in the morning and after training , gonna try chocolate next and as a bonus they give you bcaa free
One stop Extreme is a wicked post workout product,nVery high grade of ingredients and dosed appropriately.nRecommend it
Has all the right ingredients the body needs after a workout or even during the day if it's in your diet. All around top supplement and tastes amazing, I got the vanilla ice cream :)

Predator Review
Predator Nutrition One Stop Xtreme Review
One Stop Xtreme is Reflex's contender in the popular all-in-one category which is a large market in the United Kingdom. Compared to other products in this category such as Muscle Fuel Anabolic, One Stop Xtreme utilises a better source of protein and carbohydrates, two traditional hallmarks of supplements produced by Reflex Nutrition.
As well as this One Stop Xtreme provides a number of key ergogenics that will enhance performance and recovery for users:
BCAA's - The building blocks of muscle, these get broken down rapidly during exercise. BCAA's help to replace the amino acids lost during exercise as well as advancing the rate of muscle growth.
Creapure® - The most beneficial ingredient of all for boosting strength and performance, One Stop Xtreme uses the highest quality creatine on the market. Acting to boost the ability of users to sustain high intensity efforts such as lifting heavy weights or high velocity sprints, creatine can also aid with gaining lean body mass as it helps muscle cell volumisation.
Beta Alanine - Helps buffer lactic acid which in turn means you can push for more reps especially in high rep ranges. For athletes the presence of beta alanine in One Stop Xtreme means users can maintain a higher level of intensity in sports as diverse as football and swimming.
Betaine - Betaine is another supplement which has research supporting its ability to boost aerobic endurance. If you are an athlete such as a runner or a bodybuilder performing high rep protocols or cardio, betaine will ensure you can train harder than ever.
Digestive Aids - With the inclusion of both probiotics as well as digestive enzymes, One Stop Xtreme ensures that absorption is maximised.
The original One Stop remains a quality product for those seeking a lean all-in-one supplement, but One Stop Xtreme marks a step up for those seeking rapid gains in weight and strength. It contains just about everything a bodybuilder could ever need, all from the highest quality ingredients made to the most exacting standards. A superb all-in-one.
Customer Reviews
Cheap and helpful weight gainer.
with high grade protein and correct dosage of amino acids this is perfect for those who want to gain lean muscle. All the extra vitamins, minerals and zinc are really helpful. I have been using one stop extreme for a while now and I can certainly see results in muscle gains and overall health.It is a little clumpy when mixing but maybe it's just my shaker. Great taste go for strawberry.
Great product if you want to gain muscle and mass, very impressive!
This product is powerful! It's got all you need. Good amount of Creatine and Amino Acids to really make you ready for training every day!
Best all in one produkt i ever tried. This product became my No.1 to pack on some weight and muscle.
This is the 3rd time I have ordered One Stop Extreme. It is a brilliant product with all the calories, protein, BCAA's and Creatine that you could need. Taste and texture is very good especially for a mass gainer. I order the 4.35kg tub and it lasts around a month and I try to train 6 times a week. The scoop is a bit big and awkward to use so i just used a smaller scoop from previous protein powders.
I won't bark on about the quality of this product... everyone can see the ingredients and the nutritional information for themselves. however, this is the balls. realistically taste and mixability aren't that important, yet for me the chocolate is as good as ive had from the likes of myprotein/gold standard/bulkpowders aftermath etc etc. yes it does leave clumps. get over it and drink it. right... 2 tubs in. i found myself at a plateau, training was on point yet my lifts weren't going up (this was the case for a few months), now, i used to be a chubby kid. So the idea of drinking a relatively high (for me) carb shake was daunting, however, this really gave me those extra cals i think i must have been lacking as ive since smashed my pbs. and not just by a few kg. deadlift went up 10kg (finally broke 200- ok ok i know some here will be laughing but that was my everest) bench press up, squats up. think you get the idea. not only 1rm but also my reps increased. People in the gym have mentioned a noticeable increase in size which always makes you feel better. on a side note: i have IBS and this product doesn't upset my tummy at all, no bloat which is very rare for me and a reason why im staying clear of mass gainers for now. i have just over 1 serving a day... have 3 scoops PW and a scoop mid morning and one mid afternoon. really impressed overall and have made this my new shake for the next few months at least. Yes, i agree its slightly pricey, but considering the quality ingredients and results ive got I'm more than happy to buy it.
tried the vanilla, great taste , mixes well and I've packed on 10lb of muscle , I have it in my porridge in the morning and after training , gonna try chocolate next and as a bonus they give you bcaa free
One stop Extreme is a wicked post workout product,nVery high grade of ingredients and dosed appropriately.nRecommend it
Has all the right ingredients the body needs after a workout or even during the day if it's in your diet. All around top supplement and tastes amazing, I got the vanilla ice cream :)
Nutrition
Reflex One Stop Xtreme ingredients & nutrition facts
Reflex Nutrition One Stop Xtreme Chocolate Perfection 4.35kg | |||||||||||||||
Serving Size:4.5 scoops (145g) | |||||||||||||||
Servings Per Container:30 | |||||||||||||||
Per 100g | Per 290g daily serving | ||||||||||||||
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Ingredients:Premium Blend (42%) (of which Whey Protein Concentrate (71%)[Milk], Native Milk Protein (29%[of which 80% Micellar Casein, 20% Native Whey Protein ]), Low GI Carbohydrate Complex (20%) (of which OAT Flour [50%], Barley Flour [50%]), Maltodextrin, Glutamine Peptides (WHEAT), Cocoa Powder (chocolate varieties only), Creatine Monohydrate (Creapure),L-Leucine, Betaine Anhydrous, Flavourings, Beta Alanine, L-Taurine, Magnesium Bisglycinate, Thickener (Carboxymethyl Cellulose),L-Choline Bitartrate, Natural Colouring (Betanin [strawberry flavour only]),Enzyme Complex (DigeZyme), Sweetener (Sucralose), L-Ascorbic Acid, Colour (Beta Carotene [vanilla flavour only]), Sweetener (Stevia), Zinc Bisglycinate, Tocotreinols (DeltaGold), Iron Bisglycinate, Multi Component Protected Lactic Acid Bacteria (LAB2PRO [Bifidobacterium Bifidum, Lactobacillus Acidophilus, Lactobacillus Rhamnosus]), Nicotinamide, Copper Bisglycinate, Natural Colouring (Anthocyanin [strawberry flavour only]) Selenomethionine (Selenium SeLECT), Piperine Extract (Bioperine), Retinyl Acetate, D-Calcium Pantothenate, Cholecalciferol, Pyridoxine Hydrochloride, Thiamine Hydrochloride, Riboflavin, Chromium Picolinate, Folic Acid, D-Biotin, Methylcobalamin. | |||||||||||||||
Allergen Warning:For allergens, including cereals containing gluten, see ingredients in BOLD. Also may contain Egg and Soya. |