--- product_id: 145128631 title: "KetoneAid Ke4 Ketone Ester Concentrate | 1 Count" brand: "ketoneaid" price: "579 kr" currency: DKK in_stock: true reviews_count: 11 url: https://www.desertcart.dk/products/145128631-ketoneaid-ke4-ketone-ester-concentrate-1-count store_origin: DK region: Denmark --- # 2.5g Ketone Ester/serving WADA-approved, pro athlete trusted 100% bioavailable, Made in USA KetoneAid Ke4 Ketone Ester Concentrate | 1 Count **Brand:** ketoneaid **Price:** 579 kr **Availability:** ✅ In Stock ## Summary > 🚀 Unlock pro-level energy & focus with the King of Ketones! ## Quick Answers - **What is this?** KetoneAid Ke4 Ketone Ester Concentrate | 1 Count by ketoneaid - **How much does it cost?** 579 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/145128631-ketoneaid-ke4-ketone-ester-concentrate-1-count) ## Best For - ketoneaid enthusiasts ## Why This Product - Trusted ketoneaid brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Elite Energy Boost:** 2.5 grams of pure ketone ester per serving delivers clean, sustained fuel for peak mental and physical performance. - • **Pro Athlete Approved:** Trusted by Tour de France cyclists, Olympians, and top-tier athletes, with 3rd party WADA compliance ensuring elite-grade quality. - • **Science-Backed & Safe:** FDA GRAS certified, naturally derived, caffeine- and sugar-free formula designed for high performers without keto diet restrictions. - • **Unmatched Bioavailability:** Unlike ketone salts, KE4 offers 100% bioavailability with zero salt load—fuel your body without compromise or bloating. - • **Next-Level Cognitive Clarity:** Clinically shown to enhance mental focus, metabolic health, and promote deep restorative sleep—because your brain deserves the best. ## Overview KetoneAid KE4 Ketone Ester Concentrate is a premium, science-backed exogenous ketone supplement delivering 2.5g of pure ketone ester per serving. Trusted by elite athletes and rigorously tested for safety and compliance, it offers 100% bioavailability without caffeine or sugar. Designed to boost athletic performance, mental clarity, and metabolic health, KE4 is the gold standard ketone ester made in the USA and suitable for non-ketogenic lifestyles. ## Description Beware of " "! Many claim to be "backed by science," as they engage in misleading " " - using Ketone (Mono)Ester clinical findings as if it were for their inferior ketones. Stick to the science-backed Ketone Ester if you want to experience the results of what other Fake Ketones claim. (+15% faster next-day time trials) (Ketones vs Sugar) (Decreases Appetite) (Smarter) 2022 After years of secret use by 90% of the Tour De France teams, Quick-Step partners with KetoneAid. 2019 - Present Over a dozen human clinical trials are using KetoneAid Ketone (Mono)Ester - The King of Ketones The 1st to market 2008 - Awarded to To preserve cognitive function and alertness in soldiers on missions up to seven days without food. Nothing comes close to 1969 paper by Dr. Richard Veech made significant strides towards today's ketone ester applications. Is a ketogenic diet required? (No) No, it is not. Unlike the weaker Ketone Salts, Veech Ketone Ester can be used by non-Keto people. Can anybody take it? Not for kids and pregnant women. Seek medical advice if used outside of sport. Can it be used for weight loss? No. We strongly discourage people from buying ANY exogenous ketones for weight loss. None will burn fat for you, and it is not real "ketosis". However, it may suppress your appetite. What is the difference between Veech Ketone Ester and Ketone Salts? Two main differences: First, most Ketone Salts are only 50% bioavailable (only half of it can be used by the body as fuel). Secondly, the Salts have a MASSIVE salt load, which may be fine for a week, but after which, good luck getting your rings off. What's the difference between Veech Ketone Ester and Diol? Different Ketones, Different Results. Diol has a sedative-like inebriating effect, & nil to negative effect on performance. Some companies use 'science hijacking' (using Ketone Ester data) to confuse customers into thinking it is a performance drink. Performance Enhancing Drinks KetoneAid Veech Ketone (Mono)Ester is D-Beta Hydroxybutyrate bonded to R 1,3 Butanediol. It is the gold standard in ketone science and the primary molecule utilized in 90+% of exogenous ketone clinical trials. Used by Tour de France teams– it actually works. It is far more potent, and the versus Diol, ketone salts, or other non-Mono "ketone esters", and MCT oil. Veech Ketone Ester - The King of Ketones. Nothing comes close. ## Features - Fuel Your Ketone IQ: Provides clean energy for athletic performance, mental clarity, metabolic health, and deep sleep. Designed for high performers, go-getters, athletes, and anyone looking to get more from their ketones. - 12 servings per bottle, 2.5 grams of Ketone Ester (d-bhb bonded to R 1,3 butanediol) per serving - Effective and Safe: 3rd party tested for compliance with The World Anti-Doping Agency (WADA) and trusted by Tour de France cyclists, Olympians, NFL, NHL, NBA, and Professional Tennis Players. - KE4 is not a salt, is naturally derived, 100% bioavailable, and is the only Ketone Ester that’s published FDA GRAS and Made in the USA. Contains no caffeine and no sugar. Ketogenic diet not required - Taste Warning: Our "Very Scary Cherry" flavor improves upon the earlier "rocket fuel" taste, but it’s still rough and similar to cough syrup. If it's not to your liking, we suggest trying our Ketone Shot or our Ke4 that is sweetened with sucralose. Sucralose helps to block the bitter taste much better compared to the stevia versions. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07S7F9X9Z | | Best Sellers Rank | #794 in Blended Vitamin & Mineral Supplements | | Date First Available | March 21, 2019 | | Manufacturer | KetoneAid | | Package Dimensions | 3.82 x 1.26 x 1.18 inches; 3.21 ounces | ## Product Details - **Age Range (Description):** Adult - **Brand:** KetoneAid - **Diet Type:** Keto - **Flavor:** Original - **Item Form:** Liquid - **Item Weight:** 0.09 kg - **Primary Supplement Type:** Ketone ester - **Product Benefits:** Mental Clarity - **Special Ingredients:** No sugar, no caffeine, not a ketone salt, Stevia and natural cherry flavor - **Unit Count:** 2 Fluid Ounces ## Images ![KetoneAid Ke4 Ketone Ester Concentrate | 1 Count - Image 1](https://m.media-amazon.com/images/I/61MLHo1GSTL.jpg) ![KetoneAid Ke4 Ketone Ester Concentrate | 1 Count - Image 2](https://m.media-amazon.com/images/I/71ecZVufbDL.jpg) ![KetoneAid Ke4 Ketone Ester Concentrate | 1 Count - Image 3](https://m.media-amazon.com/images/I/71CE5jiwvlL.jpg) ![KetoneAid Ke4 Ketone Ester Concentrate | 1 Count - Image 4](https://m.media-amazon.com/images/I/91l75dNyrzL.jpg) ![KetoneAid Ke4 Ketone Ester Concentrate | 1 Count - Image 5](https://m.media-amazon.com/images/I/71pdI1adrcL.jpg) ## Available Options This product comes in different **Size, Flavor** options. ## Questions & Answers **Q: Is a ketogenic diet required? (No)** A: No, it is not. Unlike the weaker Ketone Salts, Veech Ketone Ester can be used by non-Keto people. **Q: Can anybody take it?** A: Not for kids and pregnant women. Seek medical advice if used outside of sport. **Q: Can it be used for weight loss?** A: No. We strongly discourage people from buying ANY exogenous ketones for weight loss. None will burn fat for you, and it is not real "ketosis". However, it may suppress your appetite. **Q: What is the difference between Veech Ketone Ester and Ketone Salts?** A: Two main differences First, most Ketone Salts are only 50% bioavailable (only half of it can be used by the body as fuel). Secondly, the Salts have a MASSIVE salt load, which may be fine for a week, but after which, good luck getting your rings off. **Q: What's the difference between Veech Ketone Ester and Diol?** A: Different Ketones, Different Results. Diol has a sedative-like inebriating effect, & nil to negative effect on performance. Some companies use 'science hijacking' (using Ketone Ester data) to confuse customers into thinking it is a performance drink. ## Customer Reviews ### ⭐⭐⭐⭐⭐ KetoneAid KE4 - very effective and worth the money! *by on Reviewed in the United States February 12, 2021* I ordered KetoneAid KE4 and received it in a reasonable timeframe. The bottles in my order were the newer plastic bottles, and they were sealed well with no leakages.I typically fast intermittently, anywhere from 16-18 hours a day (I have done longer fasts before) and try to stay low-carb whenever possible. I have tried strict Keto but that doesn’t always work out for me. I’ve also used bib salts and other ketone supplements (from cheaper to more expensive — both salt pills and flavored powder packets). I was 15 hours into my fast on the first day that I took KetoneAid. I’d already had 2 cups of dark roast coffee (black) and plenty of water with electrolytes. I had also watched several of the FAQ videos on the KetoneAid website and Youtube channel, so I had some sort of understanding about how these ketone esters functioned.Apparently, I missed the video about ketone esters and caffeine, because I started with 1 capful (5ml) and had a VERY caffeinated rest of the day. If you’re a heavy coffee/caffeine drinker, I would recommend dialing back on that while you figure out how the ketone esters will affect you.I started the next day with 5ml (1 capful) first thing in the morning, which helped to give me some subtle mental clarity. I did have a cup of coffee an hour later, but only partially out of habit. I took another capful a few hours later once I realized that my workday was going to get hectic. It really helped me stay focused throughout the day, even while multi-tasking and with multiple distractions. It helped to curb my appetite throughout the day, which is surprising since my stomach will sometimes still act up and demand food when I’m trying to fast while stressed out.I worked out about 6-7 hours after my second capful, and noticed a slight difference in that I didn’t feel as tired after my workout. I don’t know if it’s too soon to experience enhanced endurance from the additional ketones in my body, but just something I noticed.As for the taste? Well, some have described it as “jet fuel.” Having never tasted fuel of any kind before (and never will, lol), I will say that it was like taking a shot of very strong alcohol. Something between tequila and everclear liquor. I think it’s supposed to be flavored, but it didn’t really help when taking the esters as a straight shot (with no chaser). I might try it with a chaser (fizzy water, juice, etc.) but it’s honestly not that big of a dealbreaker for me.I expect that the 3 bottles that I purchased will last at least 18 days since I don’t plan on having 10 ml every day; I should be ok with 5ml on some days. I am keen to try it with longer fasts (48+ hours) but that is for another time. I will definitely be purchasing again. While the price might seem a bit high for 3 small bottles, the price I paid for KetoneAid KE4 is still less than what I was paying for flavored ketone salts/powder which I previously purchased from another company. Also, ketone salts are not the same as ketone esters. Esters are more potent by far. If you want to add ketone esters to your daily routine, whether it’s for keto support, fasting, mental clarity or sports performance, I would recommend purchasing a bottle (or 3) of KetoneAid KE4 and experiencing its benefits for yourself. Don’t expect to drop weight just because you’re downing shots of KE4, though. You will still have to eat healthy meals, get some exercise and take care of your body. I haven’t tried any other products from this company, but I certainly will be doing so in the very near future. ### ⭐⭐⭐⭐⭐ Why I use KE4 BHB Ester. *by on Reviewed in the United States October 28, 2019* #1 it works.#2 The CEO, Frank LLosa is accessible to customers via phone or Facebook (KetoneAid), and he is a no BS (honest and knowledgeable) professional. I have called him several times with questions. So yeah, customer service is second to none.#3 I have consumed 6 KE4 bottles to date (with many more to go) in support of both standard of care, and non-standard of care medical protocols (for mRNA signalling benefits and normal cell protective) reasons (NOT diet weight-loss and NOT physical athletic performance). KE4 has always delivered measurable results as advertised and expected (I measure Ketones/Glucose with a KetoMojo meter). I am normally Ketogenic, and KE4 is there for me when my Ketone levels fall off due to various reasons.My limited research and understanding on KE4:KE4 Converts directly into usable chemical energy also supporting various cell signalling (as per a growing volumes of animal and Human N=1 research -- which shows Ketones protect cells, supports OxPhos energy metabolism, and enables medical protocols designed to suppress normal cell glycolytic pathway functions leading to pyruvate/lactate production). KE4 (BHB) also supports improved cognition as-well-as motor function (why most people take it).Taste:It tastes like a chemical fuel. I personally don't have an issue with the taste, but I can understand why babies, girls, and girly men would. Its really not that bad -- but I'm not using it casually as a diet aid either. If you consume KE4 subliminally (hold it in your mouth and under the tongue for an extended time, before swallowing) it should get absorbed faster into the blood for immediate use.Price:While it appears the price is high, it is very reasonable for what it actually is (non-racemic ester) and for what it does (converts directly into AcetylCOA).First, its 100% bio-available -- 100% -- (not 50% or less-- like many/most BHB-Salt based products).Second, BHB ester has been the chemical gold standard for some time -- used in research labs only -- it was unavailable commercially -- and it was price prohibitive: priced in the thousands of dollars just over a year or so ago. KE4 is the real deal, now available commercially for NOT thousands of dollars. Most folks just don't get this.How does KE4 provide 100% bio-available instant ketones? My understanding (and I am not a chemist):I believe this to be an enantiomerically pure ketone ester (non-racemic). (just google it) Racemic BHB products have a left and right side molecule -- thus providing 50% or less available BHB for direct utilization. In other words, KE4 BHB Ester is fully bio-available, so you are receiving full value for the price. You can meter the amount you need for whatever your purpose is. KetoneAid even gives you a little measuring tube with the three container pack. With other racemic BHB-Salt products (right and left hand molecules) only one half (or less) of the ketones are bioavailable.How does KE4 BHB Esters work? This is very important for my personal medical (non-diet/non-athletic performance) application:I believe KE4 is a organic BHB (beta-hydroxy-buterate) ester and it is NOT related to a salt. In the body the liver (primarily) creates ketone bodies as needed (fasted state): Acetoacetic Acid, BHB, and acetone. The energy in our body at the cellular level is ATP. ATP (adenosine triphosphate) powers all mechanical and nerve functions in the body. ATP production (creation) by key organelles (called Mitochondria), found in most cells requires a fundamental chemical building block (Acetyl-CoA) to be available in order for the oxygen phosphorylation chemical process to occur, thus efficiently generating ATP. The free availability of AcetylCOA is also an important signalling state, which is key for my condition, but I will not explain that mechanism in detail here. BHB freely converts to AcetylCOA with Acetoacetate, supporting the mitochondrial production of ATP via the citric acid cycle (Krebs Cycle). KE4 is an ester, so its presents within the body converts directly to usable energy in various tissues. Because BHB esters also pass the blood-brain barrier they will be utilized for energy by the brain (the largest consumer of energy in the body).The down sides of KE4:Because KE4 is not a salt (calcium, potassium, magnesium) it doesn't supplement these electrolytes if your in a fasted state. Having said that, of the 60ml in each small container, 30ml is BHB and 30ml contains beneficial supplementation like Taurine (calcium modulator and anti-oxidant) for cardio support, etc. ### ⭐⭐⭐⭐ Bought to use with fasting *by on Reviewed in the United States December 16, 2019* I purchased this product myself after doing my own research and am not being compensated for this review in anyway.So it seems different people use this product for different things and I've spoken to many of them. The main use is for endurance sport performance and it seems to excel in this use.I purchased it to help me make it through my fasting periods. During fasting periods I can suffer from low energy and malaise (usually before my body starts burning its own ketones for energy). Taking exogenous ketones won't help your body burn its own ketones or become fat adapted any quicker, in fact it can actually hurt that process a bit, but if the product can help get me through some rougher times the overall outcome could be much better.To that end this product works. That is to say I can get some real lasting energy from this product during my fasting cycles. This has allowed me to continue a non-intense workout regime during these times as well. Also this prevents me from suffering from too much "brain fog" during those times. For this use the product is a success IMO.I have tried to use the product to fuel my body for period of intense exercise. This was not successful for me however. Understanding how ketones fuel the body this was not a surprise to me. Ketones (your bodies own or any others) are not the fuel for intensity.The major con of the product is clearly price. This is offset by not really needing much of the product for what I am using it for. Part of using a new, more experimental product like this for a custom use like I am doing is needing to "dial it in", but this is really true for almost everything diet/exercise related in the world as people'd bodies are vastly different.A major pro with using this product is the support that comes with it. The company owner is generous with his time and answers all my many endless questions in short order.If this product was around during times when I was a serious semi-professional athlete (many years and a lifetime ago) it would have been a literal major game-changer. ## Frequently Bought Together - KetoneAid Ke4 Ketone Ester Concentrate | Not a Ketone Salt, No Sugar, No Caffeine | Exogenous D-BHB Ester | 12 Serving Per Bottle (1 Count) - Hard Ketones Dr. Up Unsweetened (aka NASTY) | 0.0% Alcohol Alternative with 17g Ketohol | 12 Pack, 8.4 Oz Cans - KetoneAid Ketone Shot | Ketone Ester Energy | No Sugar, No Caffeine (6 Count) --- ## 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.dk/products/145128631-ketoneaid-ke4-ketone-ester-concentrate-1-count](https://www.desertcart.dk/products/145128631-ketoneaid-ke4-ketone-ester-concentrate-1-count) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-09-26*