--- product_id: 353354200 title: "C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) | Sugar Free Energy Drink with 160mg Caffeine, 250mg Betaine, 1050mg Taurine | Low Calorie Fizzy Drinks for On the Go Energy and Focus" brand: "cellucor" price: "£33.00" currency: GBP in_stock: true reviews_count: 12 category: "Cellucor" url: https://www.desertcart.co.uk/products/353354200-c4-performance-energy-drinks-cosmic-rainbow-500ml-12-pack-sugar store_origin: GB region: United Kingdom --- # 160mg caffeine for sharp energy Zero sugar, low calorie fizzy boost 250mg Betaine (BetaPower) for performance C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) | Sugar Free Energy Drink with 160mg Caffeine, 250mg Betaine, 1050mg Taurine | Low Calorie Fizzy Drinks for On the Go Energy and Focus **Brand:** cellucor **Price:** £33.00 **Availability:** ✅ In Stock ## Summary > 🌈 Fuel your hustle with Cosmic Rainbow — energy that’s as bold as your ambition! ## Quick Answers - **What is this?** C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) | Sugar Free Energy Drink with 160mg Caffeine, 250mg Betaine, 1050mg Taurine | Low Calorie Fizzy Drinks for On the Go Energy and Focus by cellucor - **How much does it cost?** £33.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/353354200-c4-performance-energy-drinks-cosmic-rainbow-500ml-12-pack-sugar) ## Best For - cellucor enthusiasts ## Why This Product - Trusted cellucor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Balanced Vitamin Boost:** Includes sensible doses of B3 and B12 to reduce fatigue and support natural energy metabolism, no mega-dosing here. - • **Guilt-Free Refreshment:** Zero sugar and low calories mean you stay energized without compromising your health goals. - • **Explosive Energy On Demand:** 160mg caffeine delivers a clean, sustained boost to power through work or workouts without the crash. - • **Vibrant Cosmic Rainbow Flavor:** A sweet yet tart fizzy taste that stands out from the usual energy drink crowd—refreshment with personality. - • **Scientifically Backed Performance:** 250mg Betaine supports muscle endurance and mental focus, elevating your daily grind. ## Overview C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) is a sugar-free, low-calorie energy drink featuring 160mg caffeine, 250mg Betaine, and 1050mg Taurine per can. Designed for professionals and fitness enthusiasts alike, it delivers a clean energy boost with added B vitamins to reduce fatigue. The Cosmic Rainbow flavor offers a unique sweet and tart fizzy experience, perfect for on-the-go focus and performance without the crash. ## Description Product Description Comparisons 160mg Caffeine 106mg Explosive energy Benefit Mental focus On the go Usage At work or studying 500ml Size 330ml 7 No. of Flavours 3 150mg Gym and training 60ml 2 200mg Ultimate energy Intense workout 1 C4 Smart Energy Learn More C4 Original Shot Learn More C4 Ultimate Shot Learn More Review: Nice energy boost - I drink a fair amount of C4 before workouts because I love the beta-alanine tingle, and it always wakes me up without a massive crash later. I usually stick to the Frozen Bombsicle or Skittles flavors, but I decided to give Cosmic Rainbow a shot for a change of pace. It is definitely still very tasty—it’s sweet and fruity, kind of like a handful of melted candy. However, it’s just not quite as nice as the other options they have. It feels a little generic compared to their branded collabs. I’d happily drink it again if it was the only cold one in the fridge, but it probably won't be my first choice next time. Review: Great tasting and sensible ingredients - C4 is a new brand to me, I just don't see it in the shops in the same way as I do more common brands of energy drink such as Red Bull, Monster, Reign and Rockstar - perhaps it is more common abroad/internationally. So despite being a regular drinker of energy drinks, this was my first time trying this brand. And I have to say that I'm very impresses. The taste is good - I tried "Cosmic Rainbow" and although its very sweet, the inclusion of malic acid means that it has a tartness to it aswell, a little like sour fizzy cola bottle sweets. The level of caffeine (160mg) gives a useful boost and is approximately the same as in other brands' 500ml drinks. I'm not sure that the taurine and betaine included have much scientific backing behind them in terms of efficacy. One thing I do like with the ingredients is that although the drink contains added B3 and B12 vitamins, these are at relatively sensible levels for supplementation - one can contains around 50% of the recommended daily amount of each - I'd rather that it had none since vitamin mega-dosing can be dangerous, but the amount here is relatively low, certainly compared to brands I've come across such as Monster (500%) and Moose (4000%) which seems irresponsible from those brands and would even be illegal in some European countries! All in all, I think this is going to be my go-to energy drink for now and I'll look forward to trying some more flavours on those days when I fancy a caffeine hit from a refreshing cold drink rather than a hot coffee. ## Features - EXPLOSIVE ENERGY DRINK: Grab energy on the go with C4 Performance Energy. This performance energy drink is the ideal beverage to conquer your goals both in the gym and in everyday life - comes as a 12 x 500ml can multipack. - POWERFUL ENERGY BOOST: C4 Performance Energy is powered by BetaPower and other key ingredients that support explosive energy, alertness, and performance. With 160mg caffeine, plus niacin (vitamin B3) and vitamin B12 to help reduce tiredness and fatigue and support normal energy metabolism. - ZERO SUGAR SOFT DRINKS: Low in calories with zero sugars and carbohydrates, you can enjoy a can of C4 Performance for a guilt free energising lift to power you through your day. - GREAT TASTING SOFT DRINKS: The refreshing Cosmic Rainbow flavour is a delicious way to get a game changing energy boost - C4 Performance is also available in Frozen Bombsicle, Pineapple Head, Orange Slice, and Twisted Limeade. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0979C5XJ5 | | ASIN | B0979C5XJ5 | | Age Range Description | Adult | | Best Sellers Rank | 1,221 in Grocery ( See Top 100 in Grocery ) 21 in Energy Drinks | | Brand Name | Cellucor | | Caffeine Content Description | Caffeinated | | Coin Variety 1 | Energy Drinks with Various Flavors | | Container Type | Can | | Customer Reviews | 4.5 4.5 out of 5 stars (382) | | Customer reviews | 4.5 4.5 out of 5 stars (382) | | Each Unit Count | 1 | | Flavored Drink Type | Energy Drink | | Flavour | Cosmic Rainbow | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Package Weight | 6.25 Kilograms | | Item Volume | 500 Millilitres | | Item Weight | 0.52 Kilograms | | Item model number | 110413 | | Liquid Contents Description | Energy Drinks | | Manufacturer | Nutrabolt | | Manufacturer | Nutrabolt | | Manufacturer Contact Information | CELLUCOR | | Model Number | 110413 | | Net Content Volume | 6 Litres, 6000 Millilitres | | Number of Items | 12 | | Number of Pieces | 12 | | Package Type | Soft Pack | | Package Type Name | Shrink Wrapped Tray | | Part Number | 118569 | | Recommended Uses For Product | Use as an energy drink for pre-workout or consumption during activities that require increased energy and concentration | | Special Ingredients | Betaine (BetaPower) | | Specific Uses For Product | Overall Power and Performance | | Sweetness Description | Artificially sweetened | | UPC | 842595119152 | | Unit Count | 6000.0 millilitre(s) | ## Product Details - **Age range (description):** Adult - **Brand:** Cellucor - **Flavour:** Cosmic Rainbow - **Item form:** Liquid - **Item volume:** 500 Millilitres - **Item weight:** 0.52 Kilograms - **Number of items:** 12 - **Package information:** Can - **Special ingredients:** Betaine (BetaPower) - **Unit count:** 6000.0 millilitre(s) ## Images ![C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) | Sugar Free Energy Drink with 160mg Caffeine, 250mg Betaine, 1050mg Taurine | Low Calorie Fizzy Drinks for On the Go Energy and Focus - Image 1](https://m.media-amazon.com/images/I/71pYwk7+vxL.jpg) ## Available Options This product comes in different **Flavor** options. ## Questions & Answers **Q: Is Cosmic Rainbow the same as US Skittles flavour?** A: No idea but it didn't taste like skittles to me. It is delicious though and doesn't get sickly either. It most probably tastes better than a skittles drink. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice energy boost *by S***R on 1 December 2025* I drink a fair amount of C4 before workouts because I love the beta-alanine tingle, and it always wakes me up without a massive crash later. I usually stick to the Frozen Bombsicle or Skittles flavors, but I decided to give Cosmic Rainbow a shot for a change of pace. It is definitely still very tasty—it’s sweet and fruity, kind of like a handful of melted candy. However, it’s just not quite as nice as the other options they have. It feels a little generic compared to their branded collabs. I’d happily drink it again if it was the only cold one in the fridge, but it probably won't be my first choice next time. ### ⭐⭐⭐⭐⭐ Great tasting and sensible ingredients *by A***S on 27 July 2025* C4 is a new brand to me, I just don't see it in the shops in the same way as I do more common brands of energy drink such as Red Bull, Monster, Reign and Rockstar - perhaps it is more common abroad/internationally. So despite being a regular drinker of energy drinks, this was my first time trying this brand. And I have to say that I'm very impresses. The taste is good - I tried "Cosmic Rainbow" and although its very sweet, the inclusion of malic acid means that it has a tartness to it aswell, a little like sour fizzy cola bottle sweets. The level of caffeine (160mg) gives a useful boost and is approximately the same as in other brands' 500ml drinks. I'm not sure that the taurine and betaine included have much scientific backing behind them in terms of efficacy. One thing I do like with the ingredients is that although the drink contains added B3 and B12 vitamins, these are at relatively sensible levels for supplementation - one can contains around 50% of the recommended daily amount of each - I'd rather that it had none since vitamin mega-dosing can be dangerous, but the amount here is relatively low, certainly compared to brands I've come across such as Monster (500%) and Moose (4000%) which seems irresponsible from those brands and would even be illegal in some European countries! All in all, I think this is going to be my go-to energy drink for now and I'll look forward to trying some more flavours on those days when I fancy a caffeine hit from a refreshing cold drink rather than a hot coffee. ### ⭐⭐⭐⭐⭐ Boost ur energy with this *by P***G on 27 August 2025* Value for money Gives good energy Good size of a tin Great quality taste ## Frequently Bought Together - C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) | Sugar Free Energy Drink with 160mg Caffeine, 250mg Betaine, 1050mg Taurine | Low Calorie Fizzy Drinks for On the Go Energy and Focus - Monster Ultra Energy Drink, 9 x 500 ml - SNEAK Energy Drink Cans | Raspberry Lemonade | No Sugar. No Nasties. Just Natural Caffeine, Focus Boosting Nootropics in a Can | 500ml x 12 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/353354200-c4-performance-energy-drinks-cosmic-rainbow-500ml-12-pack-sugar](https://www.desertcart.co.uk/products/353354200-c4-performance-energy-drinks-cosmic-rainbow-500ml-12-pack-sugar) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-28*