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KetoneAid KE4 Ketone Ester Drink

Ketone Ester. Perfect Human Fuel. 12 bottles per box.

Most Ketone Salts are "racemic" which means it is only 50% bioavailable (only half of it can be used by the body as fuel). Also, salts have a massive sodium load, often buried under the lesser known salts like potassium, magnesium and calcium. Often exceeding 2-4 grams. Which is fine while entering a keto diet for a week, but after which, good luck getting your rings off!

Each batch of KE4 is 3rd Party Tested for WADA banned substances. Certificate available upon request.

Performance Enhancing Sports Drink.
Leverage the Incredible Power of Ketones.
Also available in less concentrated KE1 single serve bottles of Ketone Ester and Salt blend. (One bottle of KE4 contains 30g of Esters. One bottle of KE1 contains 5g).

New KETONE SHOTS now available! (replacing KE1) -¬†¬†ÔĽŅA smoother taste and no Ketone Free Acid or Ketone Salts. It has only the best ketone - Ketone Ester - The King of Ketones.

  • Each bottle is technically one serving, but ignore that (unless you are a pro athlete).

    The bottle has 60ml (30g of ketone ester). Many are taking as little as 10ml on a daily basis, and sensitive people use only 5ml.

    One capful is 5ml. Pour into small glass or measuring tube and dilute 1 to 1. 

    Ketone Ester is D- Beta Hydroxybutyrate/ D 1,3 Butanediol Monoester
    Other ingredients per 1 bottle, 60ml: Water, Allulose (non GMO, Zero Glycemic sweetener), Taurine (0.5g), Organic Stevia, Natural Flavors, Potassium Sorbate (freshness).
    Best Keto Supplement Esters vs MCT Oil effectiveness

  • Is a Ketogenic Diet required?
    No it is not. Unlike the weaker Ketone Salts, the Ketone Ester can be used by non-Keto people.

    What is the difference between Ketone Salts and Ketone Esters?
    Two main differences. First, most Ketone Salts are "racemic" which means it is only 50% bioavailable (only half of it can be used by the body as fuel). Secondly, the Salts have a MASSIVE salt load, often buried under the lesser known salts like potassium, magnesium and calcium. Often exceeding 2-4 grams. Which is fine while entering a keto diet for a week, but afterwhich, good luck getting your rings off.

    Can this be used to increase Deep Sleep?
    Yes! Not to help one go to sleep, but to increase deep sleep. See our Instagram page for dozens of Oura ring data showing results.

    Can I save money by mixing it with MCT Oil?

    Sorry, we wish. But the ester and MCT C8 Oil compete with each other and the oil may block the ester, and oftentimes the mix leads to horrible GI, not seen with the ester alone.

    Can I mix Ketone Ester with caffeine/coffee?
    Yes, but beware.

    Does the ester taste as bad as I have heard?


    Is there a Support Group or Forum?

    Yes. We have hundreds of customers on our Facebook Group, join and see how others use it, and share protocols. They share what worked and what did NOT work!

    Can I use this for One Meal A Day Fasting or Multi Day Fasting?
    Yes and yes.

    OMAD Fasting:

    Multi Day Fasting:

    Should I use Ketone Ester when 1st entering a Keto Diet?
    No we do not recommend trying to use Ketone Ester when first entering into a Ketogenic Diet. Too many variables and too likely you will get the Keto Flu and blame the drink. Instead, do it through the traditional 80% fat route.

    What if I didn't notice anything?
    Are you sure?

    If I'm already making ketones, why should I drink them?

    Do you guarantee I will like it?
    Sure. We don't scream about "110% Satisfaction Guaranteed" like some bogus supplements, because we didn't want to look like them. It is pretty simple, if you don't like it, let us know. Sure we would love a chance to help you tweek the protocol, but regardless, yes we will refund your small bottle order.

Customer Reviews

Based on 23 reviews
CH (Melbourne, AU)
Excellent Product. Excellent Service.

I've been using a keto diet for many years to manage my diabetes and general health. This product is the best I have found for exogenous ketone supplementation. Perfect before going for a long run, to kickstart the day, or a boost on a busy day. Unlike ketone powdered ketone salts, KE4 significantly increases my blood ketone levels and helps me to stay in ketosis.

Optimoz's service is excellent. There was a problem with the delivery company and Optimoz let me know about it and remedied it immediately. Couldn't be happier.

Isaac (Brisbane, AU)
Liquid gold - worth the cost for performance

The product enhances almost all measureable and beneficial outcomes of cognition.
It's quite noticeable.

The size of the container and unnecessary refrigeration allows for easy storage by your workstation too.

It's nearly the perfect product for high stake deep-work, negotiation, or meetings.

The only things they could improve are: the dosing process (pouring into the lid is messy & inefficient by causing small losses), the bottle seal (a pain to tear off without a knife or keys), and of course, the price.

The product is worth a try, if you can afford it.

Great cognitive benefits

Great product. I follow a keto diet and thought I would trial KE4.Was prepared for a bad taste, but actually I quite like it. Taking KE4 I found it had an anti-anxiety effect, whilst also improving focus and concentration. Surprisingly effective!


Great service - Great product ‚≠źÔłŹ‚≠źÔłŹ‚≠źÔłŹ

Roger Bowman (Adelaide, AU)
Ketone Ester Drink

Although it has an unpleasant taste the KetoneAid KE4 Ketone Ester Drink is an excellent supplement for boosting mental clarity and suppressing sugar cravings.