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Bulletproof® Brain Octane C8 MCT Oil - 946ml

Bulletproof Brain Octane C8 MCT Oil rapidly metabolises into ketones for fuel and satiety. It is flavourless and odourless. Add it to smoothies, salad dressings, Bulletproof Coffee and more. The most ketogenic MCT.

  • Bulletproof® is the brand that introduced keto to the world.
  • A key ingredient in the Bulletproof Coffee recipe. 
  • Used as part of Bulletproof® Intermittent Fasting.
  • Rapidly metabolises into ketones for fuel and satiety.
  • 100% coconut oil derived. No palm oil.
  • BPA Free packaging.
  • Formulated Supplementary Sports Food to be consumed as part of a nutritious meal plan and as part of a program of physical activity.
  • 946ml bottle. 32 x 15ml servings.
  • Also available in smaller sizes: Brain Octane - 473ml , travel friendly 90ml bottle and Softgels.  Or try MCT OIl Powder
Brain Octane Oil Australia

Bulletproof™ Brain Octane (C-8 MCT)

  • Converts into energy ketones faster than other fats or oils
  • Ketones provide an alternative source of energy to glucose derived through consumption of carbohydrates.
  • Make meals more Bulletproof – Flavourless and easy to add into meals and drinks. Mix into any smoothie, soup, sushi, coffee or most recipes, for more intense mental activity
  • Flavourless and odourless to add to any liquid or food
  • Easy Storage – Shelf Stable. No refrigeration required and liquid at room temperature
What is the best form of MCT Oil to take?

Unique High Quality Processing

Most caprylic acid comes with an unpleasant goat-like smell and taste, but we use a unique, time consuming, proprietary process to reduce free fatty acids. Brain Octane is completely tasteless and odourless – perfect for mixing with foods to bring out their flavours! Brain Octane Oil is 100% derived from sustainable coconut oil, with zero palm oil mixed in. 

Suggested Use

  • Use Brain Octane to add to or replace other oils in your meals and drinks, but not replacing them completely.
  • Start using Brain Octane one teaspoon at a time and increase slowly over two weeks. Build up to a full serving up to twice per day. Use up to 1-3 tablespoons per day* Too much Brain Octane Oil, especially if consumed on an empty stomach, can result in loose stools or a stomachache.*
  • The best way to maximise energy is to mix Brain Octane in Bulletproof® Coffee, smoothies, salad dressings, or other recipes.
  • Brain Octane Oil is suitable for cooking below 160 degrees Celcius.
  • Brain Octane is packaged in a BPA-free plastic bottle. It is GMO-free, aflatoxin-free, BSE/TSE-free, and melamine-free.
  • If you have risk of kidney stones, consult with your physician before using this product.


  • 100% 8-carbon medium-chain triglycerides from coconuts.
  • It does not trigger the following allergies: celery, cereals containing gluten, crustaceans, eggs, fish, lupin, milk or its derivatives, mollusks, mustard, peanuts (including peanut oil), sesame seed or its derivatives, soybean or its derivatives, Sulfur Dioxide, tree nuts, wheat or its derivatives, and more. It is obsessively, highly purified.

What's the difference to Bulletproof MCT Oil?

  • Brain Octane contains only Caprylic, C-8 carbon medium-chain triglycerides (MCT) from coconuts. it is the most ketogenic of MCTs. We've had feedback that it offers mental alertness, clears brain fog, a feeling of satiety and lots of energy while intermittent fasting, People are focused and productive while studying or working.
  •  Bulletproof® MCT Oil contains both C-8 and C-10 length chains. C-10 offers more physical energy while C8 (Brain Octane Oil) as the name suggests, provides the most rapid cognitive fuel. C-10 is more easily produced making the C8-C10 blend a more economical option.  MCT oil is the right option to get fat-adapted. Like Brain Octane oil, it is tasteless and odourless.
  • Bulletproof Brain Octane and MCT Oil do not contain any C6 or C12.
  • Read our comprehensive article: Brain Octane C8 vs. MCT vs. Coconut - Which MCT Oil is Best?
  • Dive Deeper:  Which Ketone Supplement is Best?

Customer Reviews

Based on 1428 reviews

Love this product! Have it everyday with my coffee.

Tom Peric (Sydney, AU)
As Advertised!

I have an autoimmune disorder and the drs are of no help. I've been conducting my own research into my symptoms and have found that the higher fat and as close to zero carb way of eating is the best for me.

This product has helped with clearing the brain fog I once had giving me clarity of mind.

My body is starting to have energy again.

It also helps to keep hunger at bay helping with intermittent fasting.

I use this mixed with hot water and butter for Bulletproof Water 😆 along with a scoop of Grass Fed Collagen powder.

I'm really impressed with this particular product and it plays an integral role in my healing journey.

Thanks for reading. 🙂



Stu (Sydney, AU)
Life Changing.

After struggling for years with a weight problem MCT Oil has changed my life for the better. No more hunger pains. Wonderful product. I highly recommend it.

Michael Webber (Adelaide, AU)
My daily

I’ve been using Brain Octane for years. Thanks Optimoz for being a one stop shop for human optimisation 👌