12 Best Exogenous Ketones in 2020

If you want to lose weight and keep it off, without having to deal with hunger and low energy levels, keto is the diet for you. All you need to do is keep your carb intake to 50 grams or less per day.

While keto is an effective diet, it’s not without drawbacks. For a start, it takes a few days to two weeks to actually enter ketosis, the state from which this diet gets its name.

The good news is that supplements like exogenous ketones can help. But what are exogenous ketones, and what are the best exogenous ketones to use on this low-carb diet?

Exogenous ketones are merely ketones form an external source. That’s what exogenous means. Your body recognizes these ketones as natural and then uses them for a wide range of metabolic processes. In straightforward terms, artificially increasing your ketones levels with exogenous ketones will:

  • Boost your energy
  • Ward off the keto flu
  • Help clear brain fog
  • Speed up fat burning
  • Prevent hunger and cravings

Exogenous ketones are of no real use to non-keto dieters, but if you have embraced the low-carb lifestyle, taking these popular supplements will definitely help.

Not sure which are the best exogenous ketone supplements? No worries – here are 12 of the best, all tried and tested just for you!

Top-Rated Exogenous Ketones

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4.6/5

Keto BodyTone is a very simple exogenous ketone supplement. In fact, that’s all it contains – exogenous ketones. Despite its short list of ingredients, this product could still help you lose weight faster on the low-carb ketogenic diet.

Key Features

  • Contains three different types of beta-hydroxybutyrate (BHB) ketones
  • Easy to swallow capsules
  • No added ingredients
  • Caffeine-free formula

Using this product couldn’t be easier. Just take one capsule in the morning and one in the evening with water. Each bottle will last you 30 days. 100% pure exogenous ketones will help you get into ketosis much faster and easier.

Read the full Keto Bodytone review here. 

Pros

  • Pure exogenous ketones
  • Easy to use
  • A great accompaniment to the ketogenic diet

Cons

  • Relatively small dose of exogenous ketones (700mg)
  • Quite expensive

While this isn’t the most potent exogenous ketone product around, it contains enough of the active ingredients to help you lose weight faster. With no caffeine, this supplement won’t leave you feeling anxious, jittery, or unable to sleep. Instead, it’s just a simple, pure exogenous ketone supplement.

2. Perfect Keto Exogenous Ketone Base

Awesome
4.4/5

Perfect Keto specializes in making keto diet supplements and food products. They are one of the biggest names in keto. This exogenous ketone mix is one of their flagship products and is also one of the best exogenous ketone products you can buy.

Key Features

  • 5 grams of exogenous ketones per serving
  • Contains magnesium, sodium, and calcium BHB ketone salts
  • Available in four flavors and unflavored capsules
  • Sweetened with stevia and monk fruit
  • All-natural flavors

Perfect Keto Exogenous Ketone Base is a drink mix. Combined with 8-12 ounces of water, it’s fast-acting and has a noticeable effect on ketosis and the symptoms of keto flu. It’s also an effective energizer, despite being carb and caffeine-free. It doesn’t taste too bad, either!

Read the full Perfect Keto review here.

Pros

  • Large dose of exogenous ketones per serving
  • Very low in calories
  • Refreshing and rehydrating
  • A good range of flavors

Cons

  • Some users have noticed a slightly bitter taste that the natural flavors, monk fruit, and stevia cannot disguise

If you are looking for a quick and easy way to flood your body with ketones, Perfect Keto Exogenous Ketone Base is an excellent choice. Proven and popular, this product won’t disappoint.

3. Kiss my Keto Exogenous Ketones

Awesome
4.4/5

Kiss my Keto make a large range of keto diet supplements, including keto snacks, MCT oil products, and exogenous ketones. This product is an easy to use drink mix and is an excellent way to get lots of ketones into your body in double-quick time.

Key Features

  • 11 grams of exogenous ketones per serving
  • Available in lemon/lime and mixed berry flavors
  • 15 servings per container
  • Free from sugar and carbs
  • Sweetened with stevia
  • All-natural flavors

Kiss my Keto Exogenous Ketones is something of a dietary big hitter. With over 11 grams of exogenous ketones per serving, this product will help you get into ketosis faster, warding off the keto flu in the process. This fast-acting product is a great addition to the ketogenic diet.

Pros

  • Easy to mix
  • Refreshing flavors
  • Provides fast-acting but sustained energy

Cons

  • Quite expensive
  • Only available in two flavors

If you are on keto, and especially if you exercise, an exogenous ketone drink mix can help. Providing an instant ketone hit for increased energy, this product is the keto-diet equivalent of a sports drink – but without the sugar and caffeine!

4. Pruvit Keto OS

Good
4.4/5

When you are on keto, most fast-acting energy gels are off-limits because they contain sugar and will kick you out of ketosis. Pruvit Keto OS is a keto diet-friendly energy gel that supports ketosis and will give you a boost without disrupting your diet.

Key Features

  • Single serving foil pouches
  • Contains caffeine and ketones for energy
  • Fast-acting formula
  • Sweetened with stevia
  • Orange dream flavor

With Keto OS, you can get a jolt of ketone and caffeine energy anywhere and anytime. Just rip open a sachet and chug it down. This fast-acting formula will have you buzzing in minutes. Keto OS is ideal for exercisers who usually use high-carb energy gels but, on ketosis, need a sugar-free alternative.

Pros

  • Very portable
  • Easy to use
  • Great flavor

Cons

  • Expensive
  • Contains potential allergens – including dairy and gluten

If you want a ketone supplement you can use several times a day, Keto OS is probably not the right one for you. It’s just too expensive. But, if you need an occasional ketone hit, maybe before or during a grueling workout, then this could be the right product for you.

5. Pure Keto Fit

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4.4/5

Ketone supplements are often expensive and contain a wide range of inactive ingredients that essentially dilute them to make them less effective. Pure Keto Fit bucks both of these trends as it’s reasonably priced and only contains proven active ingredients.

Key Features

  • 800mg of BHB ketones per serving
  • MCTs to naturally increase ketone production
  • Caffeine for increased energy and faster fat burning
  • Green tea leaf extract for faster fat burning
  • Apple cider vinegar for increased metabolism and lower blood glucose

Pure Keto Fit is a supplement that fights fat on several fronts at the same time. As well as containing exogenous ketones, it also provides additional fat burning benefits that every low-carb dieter will appreciate. If you want to get more from your keto diet, this product will help.

Pros

  • All-natural ingredients
  • Easy to swallow vegetarian-friendly capsules
  • Fast-acting formula
  • Well-priced
  • A popular and proven product

Cons

  • Caffeine can cause some unwanted side effects in some users, such as anxiety and insomnia
  • Low dose of ketones per serving

Costing less than half the price of many exogenous ketone products, Pure Keto Fit is outstanding value for money. However, it does only contain 800mg of ketones per serving, which isn’t a lot compared to a ketone drink mix. That said, with its additional ingredients, this is still a potent exogenous ketone supplement.

6. Purely Optimal Keto BHB

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4.4/5

Exogenous ketone supplements don’t come much purer than Purely Optimal Keto BHB. Made from 100% pure BHB ketone salts, this product really does live up to its name. If you want a no-frills exogenous ketone product, Purely Optimal Keto BHB could be a good choice.

Key Features

  • 100% beta-hydroxybutyrate (BHB) ketones salts
  • No added ingredients
  • Produced in the USA in an FDA-approved facility
  • 30-day supply per bottle

With nothing added, Purely Optimal Keto BHB can help you get into ketosis faster while boosting your energy, decreasing your hunger, and preventing the symptoms of keto flu. Easy to swallow capsules mean you can use this proven product anywhere and anytime.

Pros

  • A pure exogenous ketone supplement
  • Free from caffeine
  • Easy to swallow capsules
  • Good for all aspects of the ketogenic diet
  • Well-priced

Cons

  • Gelatin capsules mean that this product is not suitable for vegetarians or vegans

This might be a no-frills exogenous ketone supplement, but that doesn’t mean it’s not beneficial. Whether you are struggling with keto flu, or just want to speed fat burning, Purely Optimal Keto BHB can help, and without breaking the bank.

7. Julian Bakery InstaKetones

On keto, the faster you can get into ketosis, the better. This can take anywhere from a few days to two weeks, depending on how severely you restrict your carb intake, and how active you are. Julian Bakery InstaKetones are designed to boost ketosis in double-quick time, making them very valuable for low-carb dieters.

Key Features

  • 7 grams of BHB ketones per serving
  • No stimulants
  • Fast-acting formula
  • Orange flavored drink mix
  • 30 servings per pack
  • Lactose, gluten, and sugar-free

Where some ketone drink mixes only provide 15 servings per pack, Julian Bakery InstaKetones has 30. This makes it one of the most cost-effective ketone drink mixes on the market. It’s also refreshing and easy to use.

Pros

  • Mixes easily
  • All-natural ingredients
  • Refreshing taste
  • Good value
  • One of the original instant ketone products

Cons

  • Maybe too tart/sharp for some users

While you won’t mistake Julian Bakery InstaKetones for Florida orange juice anytime soon, it’s still got a decent flavor. That said, some users still find it too tart for their tastes. This problem is easily avoided by adding a little powdered stevia. Taste issues aside, this is a very fast-acting, potent exogenous ketone product.

8. KetoSports Keto CaNa

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4.4/5

While ketone supplements in capsule form are easy to use, they don’t usually provide enough exogenous ketones to be useful. KetoSports Keto CaNa contains an impressive 11.7 grams of exogenous ketones per serving, and that will help you get into ketosis faster.

Key Features

  • Pure calcium and sodium beta-hydroxybutyrate exogenous ketones
  • No artificial colors, flavors, or preservatives
  • Fast-acting formula
  • Available in two flavors – strawberry lemonade and natural orange

Exogenous drink mixes don’t come much purer than KetoSports Keto CaNa. With very little added, this product will enhance every aspect of the ketogenic diet, from beating keto flu to speeding up fat loss. It’s also very easy to use.

Pros

  • Mixes easily
  • Refreshing flavors
  • Designed to induce ketosis very quickly

Cons

  • Quite expensive
  • Only 16 servings per container

If this product has any disadvantages, it is that you only get 16 servings per container. That means one tub may only last you a week! Providing you don’t mind buying this supplement in bulk, it’s a good choice, but bigger containers would be very welcome.

9. Sports Research Keto Plus

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4.4/5

Sports Research Keto Plus is an exogenous ketone drink mix designed to be used during the low carb ketogenic diet. Mixed with water, it’s an easy way to flood your body with lots of energizing, hunger, and craving-fighting ketones, which are the lifeblood of the ketogenic diet.

Key Features

  • Magnesium, sodium, potassium, and calcium beta-hydroxybutyrate exogenous ketones
  • Amino acids for energy and muscle building
  • Prebiotic acacia gum for improved digestive health
  • Naturally sweetened with stevia and monk fruit
  • Chromium picolinate to lower blood glucose levels
  • Natural flavors and colors
  • Just 20 calories per serving

This product is designed to get you and keep you in ketosis. With its big ketone payload, KetoSports Keto CaNa is ideal for dieters who want to achieve the deepest level of ketosis as fast as possible.

Pros

  • Easy mix formula
  • 90-day money-back guarantee
  • 30 servings per container
  • Reasonably priced

Cons

  • Only 6 grams of ketones per serving
  • Strong, salty flavor
  • Only available in one variety – raspberry lemonade

While this isn’t the strongest exogenous ketone product on review, it’s still a good choice for keto dieters. In fact, being a little low on ketones means that it won’t cause as many side effects as more concentrated products can.

10. Keto Advantage Keto Primal

With just 800mg of exogenous ketones per serving, Keto Advantage Keto Primal won’t get you into ketosis overnight. However, it’s well-priced, easy to use, and very pure, which means it could still be a worthy addition to your ketogenic diet.

Key Features

  • 100% pure beta-hydroxybutyrate ketone salts
  • Easy to swallow capsules
  • Free-from artificial ingredients and stimulants
  • 30-day supply per bottle

If you find the taste of exogenous ketone drink mixes hard to take, this is the product for you. The easy to swallow capsules mean that you won’t have to psyche yourself up to use it. With nothing else added, this is a very clean exogenous ketone supplement.

Pros

  • Easy to use
  • Cost-effective
  • No unpleasant aftertaste

Cons

  • Gelatin capsules, so not suitable for vegetarians or vegans

If you are looking for an exogenous ketone product that’s easy to use, Keto Advantage Keto Primal could be a good choice. Use it after you have reached ketosis to burn fat faster and boost both mental and physical energy.

11. Keto Blast

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4.4/5

Keto Blast BHB Ketones are exactly what it says on the jar! There is nothing fancy or clever about this product, but that doesn’t make it any less useful. If you want a pure exogenous ketone supplement, Keto Blast BHB Ketones may be just what you are looking for.

Key Features

  • 800mg of BHB ketones per serving
  • 100% pure exogenous beta-hydroxybutyrate ketone salts
  • Free from caffeine
  • Easy to swallow capsules
  • 30-day supply per bottle

Keto Blast BHB Ketones are very easy to use. Just pop a couple of capsules into your mouth and wash them down with water. That’s it! Within a few days, you should be sliding toward ketosis and ready to start burning fat like a blast furnace.

Pros

  • Easy to use
  • Non-habit forming
  • Fast-acting formula
  • Well-priced

Cons

  • A very modest dose of ketones

While there are more potent exogenous ketone supplements around, there aren’t too many that are cheaper or purer. If you want a simple exogenous ketone supplement to support your dietary efforts, Keto Blast BHB Ketones is a recommended choice.

12. Nutra Life Keto

Good
4.4/5

A lot of weight loss supplements contain caffeine. This common stimulant is an effective energizer, and also promotes fat burning. Nutra Life Keto not only contains BHB ketones, but it’s also got caffeine to help you lose weight even faster.

Key Features

  • 800mg of beta-hydroxybutyrate exogenous ketones per serving
  • 100mg caffeine anhydrous for energy and fat burning
  • 30-day supply per bottle
  • Easy to swallow capsules
  • Fast-acting formula

The caffeine in Nutra Life Keto is something of a double-edged sword. On the one hand, it can help give you energy and speed up fat burning. On the downside, it could cause anxiety and keep you awake at night. If you are sensitive to the effects of caffeine, this is not the supplement for you.

Pros

  • A synergistic blend of caffeine and ketones
  • Well-priced
  • Easy to use
  • Proven ingredients

Cons

  • Could cause unwanted side effects in users sensitive to the effects of caffeine

If more than one cup of strong coffee leaves you feeling anxious or jittery, you’ll want to look for a different exogenous ketone supplement. But, if you enjoy and can tolerate a caffeine buzz, Nutra Life Keto is an excellent product.

Bottom Line

Fat burners come in all shapes, sizes, and formulation, but a lot of seemingly useful products aren’t much use on keto. It doesn’t take much carbohydrate or sugar to derail the ketogenic diet, and so you should avoid generic fat burners and stick with products explicitly designed for use on the ketogenic diet.

The products reviewed above are all keto-diet approved and will make every aspect of your low carb diet easier to live with. From faster fat-burning to less keto flu to more energy, these supplements are formulated to help.

But, like any fat burner, they won’t work unless you do. You need to keep your carb intake to less than 50 grams per day, eat plenty of healthy fats and protein, and get busy with some regular exercise too. If you don’t, even the best exogenous ketone supplement won’t do much for you.

But, combined with a sensible ketogenic diet and sustainable workout routine, exogenous ketones will magnify your efforts, so you make faster, easier progress.

Visit the WL Fitness and Health homepage for more detailed supplement reviews.