Forget lightning, this is like liquid marzipan. I love it, it’s so different to anything I’ve tried before and it has quite a caffeine hit to it too. This was another import from America, so you’re unlikely to see it in the UK unless your local import shop finds it for you.
It’s a middle of the road tropical drink. I managed to drink the whole can, so that means it wasn’t too sour or sharp. It was, however, very sickly, and a large 500ml can like this was far too much in one go.
As it says on the can, it’s refreshing! Sweet and artificial, but tasty, fruity and refreshing. It’s also lower in calories per 100ml than most energy drinks, but it’s certainly not low calorie. I highly recommend this new Relentless flavour for something a bit different and long may it last!
| Taste: | Originality: | ||
|---|---|---|---|
| Strength: | Visitor Ratings: | ||
| Caffeine: | 32mg/100ml | 
                Tags: Cherry, Large Can, UK  | 
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| Calories: | 31kCal/100ml | ||
| Size: | 500ml | ||
| Sold By: | Tesco | ||
| Web Site: | Click here | ||
This drink is intended to honour MotoGP champion Valentino Rossi, whose nickname is apparently “The Doctor”. This is all very confusing to me as the only person who should sport that name owns a TARDIS. Oh well, on with the drink itself. It’s described as citrus flavoured, and I guess that orange is a citrus fruit – I was expecting something a little more on the lemon and lime side of things though! It’s very orangey, but that’s not bad because it’s still quite nice. Even the large quantity of drink you get in this large can doesn’t get too sickly, so they’ve managed the balance just right.
| Taste: | Originality: | ||
|---|---|---|---|
| Strength: | Visitor Ratings: | ||
| Caffeine: | 32mg/100ml | 
                Tags: Citrus, Guarana, Large Can, UK  | 
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| Calories: | 44kCal/100ml | ||
| Size: | 500ml | ||
| Sold By: | OneStop | ||
| Web Site: | Click here | ||
I’m told that thisĀ is a standard issue energy drink in the US, but in the UK you can’t get hold of it. I found this in Spain so jumped at the chance of trying it without paying extortionate money to import a can. It’s really good! It tastes like fruit punch with a whole load of caramel in, and possibly a dash of cola in the background somewhere too. Whatever the flavour ingredients are (I don’t know, the can was in Spanish), they clearly work well together. I didn’t get the usual synthetic Monster flavour that is so prominent with this brand in this drink either which is a plus-point in my opinion.
Update 2021-09-23: Obviously since I first reviewed this drink over seven years ago, it has been available in the UK for quite a while. They have now updated the can design too, so I’ve updated the image on this review too. I am also now very certain that this is basically a cola flavoured drink.
| Taste: | Originality: | ||
|---|---|---|---|
| Strength: | Visitor Ratings: | ||
| Caffeine: | 32mg/100ml | 
                Tags: Cola, Guarana, Large Can, Mixed Fruit, Spain, UK  | 
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| Calories: | 45.7kCal/100ml | ||
| Size: | 500ml | ||
| Sold By: | BP Petrol Station, Barcelona | ||
| Web Site: | Click here | ||
Nice! It tastes like a mixture between raspberry and blueberry, along the lines of most of the other blue coloured energy drinks. It packs quite a punch being high in sugar, caffeine and volume, and being very drinkable goes down quickly too. Smooth and tasty.
It might list the fruits on the can, but it really is just a tropical flavour energy drink. Sweet, fruity, mildly refreshing but mostly a bit too sickly for my liking. I still prefer the more artificial flavour of Monster Ripper if you’re going to go down the tropical route.
Meh… just a bland tropical tasting drink really. It’s inoffensive and that’s about as complimentary as I can be. To be honest, Morrison’s have just included this flavour to complete their band-wagon jumping range.
It’s a very large can of generically budget energy drink. It’s a sweet mix, but slightly watery even though it keeps a decent 31.5mg/100ml of caffeine in tow. Mega hit of energy, and a rather nice flavour. I’d buy it again. One thing you should note is that it appears to have changed its name. The can I purchased was named XS Energy, but the web site declares a name change to XC Energy, presumably because of a trademark issue or other such problem.
| Taste: | Originality: | ||
|---|---|---|---|
| Strength: | Visitor Ratings: | ||
| Caffeine: | 31.5mg/100ml | 
                Tags: Clone, Large Can, UK  | 
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| Calories: | 47.8kCal/100ml | ||
| Size: | 500ml | ||
| Sold By: | Home Bargains | ||
| Web Site: | Click here | ||
