--- product_id: 722127875 title: "Ketone Energy Drink - Sugar Free, 80mg Low Caffeine, All Natural, 11.5g Ketones, Long Lasting Energy, Green Tea & L-Theanine for Mental Focus, Pineapple Passionfruit (Pack of 12)" brand: "key" price: "€ 261.51" currency: EUR in_stock: true reviews_count: 5 category: "Key" url: https://www.desertcart.hr/products/722127875-ketone-energy-drink-sugar-free-80mg-low-caffeine-all-natural store_origin: HR region: Croatia --- # 11.5g bioactive ketones - sustained power 80mg green tea caffeine - smooth, jitter-free lift Pineapple Passionfruit - fresh, natural flavor Ketone Energy Drink - Sugar Free, 80mg Low Caffeine, All Natural, 11.5g Ketones, Long Lasting Energy, Green Tea & L-Theanine for Mental Focus, Pineapple Passionfruit (Pack of 12) **Brand:** key **Price:** € 261.51 **Availability:** ✅ In Stock ## Summary > ⚡ Unlock your peak energy—naturally and sugar-free! ## Quick Answers - **What is this?** Ketone Energy Drink - Sugar Free, 80mg Low Caffeine, All Natural, 11.5g Ketones, Long Lasting Energy, Green Tea & L-Theanine for Mental Focus, Pineapple Passionfruit (Pack of 12) by key - **How much does it cost?** € 261.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/722127875-ketone-energy-drink-sugar-free-80mg-low-caffeine-all-natural) ## Best For - key enthusiasts ## Why This Product - Trusted key brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Zero Sugar, All Natural:** Sugar-free with 100% natural ingredients—ditch the sugar crash and artificial junk. - • **Tropical Flavor with a Kick:** Refreshing Pineapple Passionfruit taste that’s vibrant but never overpowering. - • **Balanced Mental Focus Formula:** Synergistic green tea caffeine & L-theanine for sharp, steady attention. - • **Low Caffeine, High Performance:** Only 80mg caffeine for a gentle lift that keeps you energized, not wired. - • **Sustained Natural Energy Boost:** 11.5g ketones deliver clean, long-lasting fuel without the crash. ## Overview KEY Ketone Energy Drink offers a cutting-edge, keto-friendly energy boost with 11.5g of bioactive ketones and 80mg of natural green tea caffeine. Sugar-free and made from 100% natural ingredients, it delivers smooth, long-lasting mental focus and physical energy in a refreshing Pineapple Passionfruit flavor—perfect for professionals seeking clean, sustained performance without jitters or crashes. ## Description Key Energy Drink, Pineapple Passionfruit Flavored, Caffeinated, Sugar Free, 12 Fluid Ounces (Pack of 12) Review: Energy Without the Jitters - I love KEY it gives me a clean, sustained energy boost thanks to the 11.5 g of ketones. I’ve started using it in place of my morning coffee, and I feel focused and steady at work instead of jittery. Other days, I’ll grab a can before a workout, and it helps me push through without feeling wired. Because KEY has only 80 mg of caffeine (from green tea), I never get the typical crash or anxious spike. And with zero sugar, thankfully there’s no sugar crash either. Having tried other energy drinks, KEY feels totally different. It’s still strong, but my energy feels better because of the ketones. I highly recommend it for anyone who wants smooth, lasting energy without the highs and lows. Review: Keys every morning!!! - I had a really great experience with KEY!!! The flavor was super fruity and fresh without being overly sweet, which I loved right away. Especially for a 9am yoga sculpt class when you dont want to have a whole 200mg energy drink and others can become to overpowering. I also appreciate that it only has 80 mg of caffeine because it gave me a smooth, noticeable energy boost without the jitters or crash I sometimes get from coffee or other energy drinks. The ketones made a big difference for me, especially with mental focus and workouts. It helped me feel more clear, motivated, and steady throughout the day. I’ve even started using it as a replacement for my morning or afternoon coffee since the energy feels much more sustained and clean, and the fact that there’s no sugar is a huge plus. Compared to other energy drinks, KEY just feels lighter and more balanced while still being effective, so it’s definitely a 5-star experience for me. ## Features - LONG LASTING ENERGY DRINK FROM KETONES. Experience a new natural energy to boost your brain and body. Power in every sip. - SUGAR FREE. Sorry honey. We swapped sugar for ketones. Ketones have 50% more energy per gram than sugar without the sugar shock! - LOW CAFFEINE. A light lift; none of the jitter. 80mg of natural green tea caffeine instead of 200mg+ synthetic jolt in other energy drinks. - 100% NATURAL. Everything, yes everything, is 100% natural! No long-list of weird artificial ingredients. We bottled nature's energy. - BIOACTIVE KETONES. Ketones are our bodies super fuel. Ours are the kind our bodies use the best, and are found in coconuts and avocados. - MENTAL FOCUS. The optimal balance of caffeine and l-theanine working synergistically to improve attention so you bring your best - naturally! - UNLOCK YOUR FULL POTENTIAL! Crack a can and unleash our natural power within. We are the new evolution in brain and body performance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CZ9Q8R2W | | Age Range Description | Adult | | Best Sellers Rank | #104,512 in Grocery ( See Top 100 in Grocery ) #1,357 in Energy Drinks | | Brand | KEY | | Brand Name | KEY | | Caffeine Content Description | Caffeinated | | Coin Variety 1 | Pineapple Passionfruit | | Container Type | Can | | Customer Reviews | 4.1 out of 5 stars 213 Reviews | | Diet Type | Keto | | Diet type | Keto | | Each Unit Count | 12 | | Flavor | Pineapple Passionfruit | | Flavored Drink Type | Energy Drink | | Flavour | Pineapple Passionfruit | | Item Form | Liquid | | Item Package Weight | 4.46 Kilograms | | Item Volume | 12 Fluid Ounces | | Item Weight | 1 Pounds | | Item form | Liquid | | Liquid Contents Description | Energy Drinks | | Manufacturer | KEY | | Net Content Volume | 144 Fluid Ounces | | Number of Items | 12 | | Number of Pieces | 12 | | Package Type Name | Can | | Package information | Can | | Product Shelf Life | 18 Months | | Recommended Uses For Product | Studying, working, sports, and other physical activities | | Special Ingredients | All Natural, Zero Sugar, Keto | | Specialty | GMO Free, Sugar Free, Vegan | | Specific Uses For Product | Studying, working, sports, other physical activities | | Tea Variety | Green | | UPC | 860010711255 | | Unit Count | 144.0 Milliliters | ## Product Details - **Brand:** KEY - **Diet type:** Keto - **Flavour:** Pineapple Passionfruit - **Item form:** Liquid - **Number of Items:** 12 ## Images ![Ketone Energy Drink - Sugar Free, 80mg Low Caffeine, All Natural, 11.5g Ketones, Long Lasting Energy, Green Tea & L-Theanine for Mental Focus, Pineapple Passionfruit (Pack of 12) - Image 1](https://m.media-amazon.com/images/I/81seYoJFpnL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Energy Without the Jitters *by K***A on 23 November 2025* I love KEY it gives me a clean, sustained energy boost thanks to the 11.5 g of ketones. I’ve started using it in place of my morning coffee, and I feel focused and steady at work instead of jittery. Other days, I’ll grab a can before a workout, and it helps me push through without feeling wired. Because KEY has only 80 mg of caffeine (from green tea), I never get the typical crash or anxious spike. And with zero sugar, thankfully there’s no sugar crash either. Having tried other energy drinks, KEY feels totally different. It’s still strong, but my energy feels better because of the ketones. I highly recommend it for anyone who wants smooth, lasting energy without the highs and lows. ### ⭐⭐⭐⭐⭐ Keys every morning!!! *by A***N on 2 March 2026* I had a really great experience with KEY!!! The flavor was super fruity and fresh without being overly sweet, which I loved right away. Especially for a 9am yoga sculpt class when you dont want to have a whole 200mg energy drink and others can become to overpowering. I also appreciate that it only has 80 mg of caffeine because it gave me a smooth, noticeable energy boost without the jitters or crash I sometimes get from coffee or other energy drinks. The ketones made a big difference for me, especially with mental focus and workouts. It helped me feel more clear, motivated, and steady throughout the day. I’ve even started using it as a replacement for my morning or afternoon coffee since the energy feels much more sustained and clean, and the fact that there’s no sugar is a huge plus. Compared to other energy drinks, KEY just feels lighter and more balanced while still being effective, so it’s definitely a 5-star experience for me. ### ⭐⭐⭐⭐⭐ Amazing *by K***E on 13 July 2024* I rarely write reviews. My boyfriend and I have had Key for the last week or so, and I'm kinda blown away. What did it for me was when I was working last Saturday. After a shift in 90+ degree heat + humidity, I had a can of Key around 4pm because it was my friend's last night in town and a group of us were all going out; I wanted to be there for her and didn't want to be yawning all night. I was dancing until 3am and had so much fun. No yawns, no crashes, no stomachaches, no jitters. Literally just the energy to have a fun night with my friends. AND I had no issue sleeping that night (probably because of the L-theanine which promotes relaxation!). I also love that Key is vegan, and the ingredient list is short, clean and all-natural. I usually drink Key straight out of the fridge, it tastes much better cold than at room temperature (ketones don't have the best taste, but they did a great job at covering it up). Ginger Lime is my favourite, Pineapple Passionfruit is a close second. My boyfriend likes pineapple passionfruit the best. Vodka Redbulls are gross (IMO) but would totally mix the ginger lime flavour with vodka for a makeshift Moscow mule. I'm generally pretty health-conscious and love nutritional science. Coffee makes me insanely jittery (even just half a cup) and Celcius makes my stomach hurt (probably from artificial ingredients, couldn't finish a whole can). I would never have either of those on an empty stomach as well, but usually have Key on an empty stomach, I also feel its effects a bit more when I do. I used to consistently have matcha + raw cacao in the mornings for the L-theanine + low-caffeine combo to put me in a focused, flow state for the day; particularly useful for studying/working. Because Key also has L-theanine and caffeine (both derived from green tea), it gives me a similar effect to get work done, but also gives me longer-lasting energy from the ketones (which also gives me a bit of a euphoric/happy feeling?? My boyfriend reported also being in a great mood after drinking a whole can too. A quick Google search has shown me that this is commonly reported with people in ketosis/on the keto diet as well.) Now, I alternate between my DIY drink and Key depending on whether I need sustained energy that day or not. If you're a nerd like me, check out these two papers about L-theanine + caffeine to see how this combination can enhance focus and attention (and it's even been suggested as an Adderall alternative too): [1] The Cognitive-Enhancing Outcomes of Caffeine and L-theanine: A Systematic Review (2021) [2] Effects of L-theanine-caffeine combination on sustained attention and inhibitory control among children with ADHD: a proof-of-concept neuroimaging RCT (2020) Finally, I also like how I am supporting mitochondria uncoupling with ketones (read Dr. Gundry for more) and love that the benefits of ketone drinks that used to only be available to support athletes and members of the military are now available for everyone to reap. Cannot recommend Key enough, I'll rave about it to whoever will listen. ## Frequently Bought Together - KEY Ketone Energy Drink : Sugar Free, 80mg Low Caffeine, All Natural, 11.5g Ketones, Long Lasting Energy, Green Tea & L-Theanine for Mental Focus, Pineapple Passionfruit (Pack of 12) - KENETIK Nootropic Ketone Drink, Ketones for Energy & Focus, Caffeine & Sugar Free, High Performance D-BHB Ketone Mix, Fuel w/Zero Crash or Jitters, Ready to Drink - Variety 6 Pk --- ## 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.hr/products/722127875-ketone-energy-drink-sugar-free-80mg-low-caffeine-all-natural](https://www.desertcart.hr/products/722127875-ketone-energy-drink-sugar-free-80mg-low-caffeine-all-natural) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-10*