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🔥 One shake to rule them all – build mass, boost energy, and own your gains! 💥
Reflex One Stop Xtreme Mass Gainer is a premium all-in-one protein powder designed for hard gainers seeking serious muscle mass. Packed with 55g of grass-fed whey protein, 5,000mg Creapure creatine, 10.3g BCAAs, and 73g low GI carbs, it supports muscle growth, strength, and sustained energy. Enhanced with probiotics, digestive enzymes, and essential vitamins, it ensures optimal nutrient absorption and immune support. Manufactured in the UK, hormone-free, Halal certified, and free from added sugars and artificial colors, it’s the clean, comprehensive solution for your muscle-building journey.










| Asin | B004LBIXFI |
| Country Of Origin | United Kingdom |
| Guaranteed Software Updates Until | unknown |
| Is Discontinued By Manufacturer | No |
| Item Model Number | One Stop Xtreme |
| Manufacturer | Reflex Nutrition Ltd. |
| Product Dimensions | 22.6 x 22.6 x 32 cm; 4.35 kg |
User
British Protein
Favourite British protein powder with all the added nutrients.I've only had the chocolate flavour and it's extremely rich, mixes well.Note: you only need 1 scoop as per the instructions but the scoop is twice the size of a normal scoop and therefore can be messy when putting into a shaker.
User
Strongly recommend
Very good all in one product. Strongly recommend
User
Hits the Spot
A good quality product, decent tasting and fair value. Obviously you have to take this whilst undertaking a fitness regime and the more you take the more weight - not all muscle - you will put on (yer don't say!) I have gone easy with it, only taking it after a gym workout rather than every (or twice a) day. At my stage, I will not buy another pack straight away because I am happy with a 4 to 6 week growth phase before changing it round a bit. I recommend this product it and I shall buy it again.
User
Great taste!
I've been buying for years. Taste is the standout feature for me, non of that synthetic taste you get with other shakes. No bloating or any of that other stuff either.
User
Great supp, a little on the sweet side
Great supp, a little on the sweet side, but better than a few others ive tried over the years(Vanilla is nasty though)!big improvement over endurance and strength...!!
User
I think it's working.
Flavour is fine. I've started lifting and taking these, and I've gained muscle. I don't know how much the protein powder matters compared to how much lifting matters, but the combination of them definitely works.
User
Taste is very strong and cloying
The taste is very strong and cloying, but it offers good value for money.
User
Great product needs smaller scoops
The product is great and I saw very fast results. My only gripe for want of a better word is the scoop size, it would have been better to put in a smaller scoop and say use two scoops as it has a morrow neck on the tub and it is difficult to get the scoop out.
User
Enttäuscht!
Ich habe das Produkt zum ersten Mal ausprobiert mit der Hoffnung, dass es nicht immer die Markenprodukte sein müssen und andere auch gute Protein Shakes machen können die weniger Geld in der Vermarktung stecken, jedoch ist das bei diesem Produkt nicht der Fall.Ich habe schon einige Shakes ausprobiert und kann sagen, ich hab wirklich einen starken Magen aber nach diesem Shake habe ich jedes Mal Bauchschmerzen und fühle mich aufgeblasen. Weder der Geschmack noch die Konsistent ist gut muss ich sagen, es schmeckt eher nach eine Mischung von Schokolade mit Banane, also sehr künstlich und zu sehr pulverisiert was oft einem einen komisches Gefühl beim trinken gibt.Ich würde es ehrlich gesagt am liebsten zurück schicken, wenn ich könnte. Also definitiv keine kauf Empfehlung meinerseits.
Trustpilot
3 weeks ago
3 days ago