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Bulletproof® Brain Octane Oil - 946ml

18x More C8 than the same serving of Coconut Oil

  • 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
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

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?

Customer Reviews

Based on 1365 reviews
Sam (Melbourne, AU)
Burst of mental energy

Have been adding a tablespoon to my bulletproof coffee every morning for a while now and it gives me the sustained mental energy and focus I need all the way til lunch time on most days. I highly recommend this over just MCT if you want the focus/mental element, not just physical.

Comfort Ros (Sydney, AU)
Keto made easy(and delicious)!

All is good so far! Oil has no taste so that is good. Looking forward to all the health benefits!!

Andrew Chen (Sydney, AU)
Fuelling the Inner Fire

I blend this with my cacao and moringa powder every grand rising. Clean powerful energy, keeps me alert and full for the whole day. I recommend taking this MCT with C60 Purple Powder for synergetic antioxidant and healing benefits.

Great product.

Richard Berdayes (Melbourne, AU)
The best MCT

This stuff is that superman juice. The best for bulletproof coffee, or even just a teaspoon added into espresso.

Clare Peniston-Bird (Sydney, AU)
Crossword Clarity

I do crosswords online every night with a brother who lives interstate. Since taking the Brain Octane Oil, I definitely seem to be quicker off the mark in coming up with the answers. (Either that, or he is getting slower). Easy to use, I add it to a coffee or Dandy Chai and blend it with some Great Lakes Collagen and a little almond butter. It has become a twice daily ritual, reducing appetite and keeping me going mentally and physically throughout the day. Love it!