C8 + C10 MCT Oil from Coconut · 946mL Bottle

Bulletproof™ MCT Oil — 946mL

A solvent-free MCT oil containing C8 (caprylic acid) and C10 (capric acid) only — no lauric acid (C12) and no longer-chain fats. Flavourless, ketogenic-friendly, and more economical than pure-C8 formats.

946mL bottle · ~63 servings (1 tablespoon each) · No lauric acid, no fillers.

Key Points

  • C8 + C10 blend — caprylic and capric acid medium-chain triglycerides, no lauric acid
  • Made from coconut oil — fractionated to isolate the shorter medium-chain fatty acids
  • More economical than pure C8 — broader MCT profile at a lower per-mL price than the Brain Octane C8-only product
  • Flavourless — blends into hot and cold drinks, dressings, and cooking without altering taste
  • Ketogenic-friendly — suits low-carb and ketogenic dietary patterns; pure fat, zero carbohydrate
  • Solvent-free processing — no chemical extraction agents used

What It Is

Bulletproof MCT Oil is a medium-chain triglyceride oil containing C8 (caprylic acid) and C10 (capric acid) only. These are the two shortest medium-chain fatty acids found in coconut oil, separated out from the rest through fractional distillation.

It differs from the Brain Octane C8 oil in that it includes C10 alongside C8. Some MCT products marketed as "MCT oil" also include lauric acid (C12) — this one does not.

If you want the most concentrated form of the shortest MCT (C8), choose Brain Octane. If you want an MCT oil at a lower per-mL cost that still excludes lauric acid, this is a good choice. Same recipes, same use cases — slightly different composition.

Sourcing & Processing

Source: Coconut oil.

Processing: The C8 and C10 fractions are separated from the rest of the coconut oil through fractional distillation (heat + pressure differentials). No chemical solvents used.

What’s left out: Lauric acid (C12), longer-chain saturated fats, and non-triglyceride components.

Product Specifications

Format Liquid oil
Bottle Size 946mL (32 fl oz)
Composition C8 (caprylic acid) + C10 (capric acid) medium-chain triglycerides
Source Coconut oil
Serving Size 1 tablespoon (15mL)
Servings per Bottle ~63
Kilojoules per Serve ~509 kJ (122 kcal) — pure fat, zero carbohydrate
Colour / Taste Colourless, odourless, flavourless
Packaging BPA-free HDPE bottle
Storage Store at room temperature away from direct sunlight. Cloudiness or thickening in cold conditions is normal and reverses at room temperature.

How to Use

Same use cases as Brain Octane — the flavourless profile blends into a wide range of foods and drinks:

  • In coffee — as the MCT oil component of the Bulletproof Coffee recipe
  • In smoothies — add 1 tablespoon per serve
  • In salad dressings — substitutes for other oils
  • Drizzled on food — over steamed vegetables, soups, or fatty meats after cooking
  • Cold uses — suitable for cold or lukewarm dishes; not recommended for high-heat frying

Start small. If you’re new to MCT oil, begin with 1 teaspoon (5mL) per day and increase gradually. Taking too much too quickly is a common cause of digestive discomfort.

The Bulletproof Coffee Recipe

"Bulletproof Coffee" combines brewed coffee with grass-fed butter (or ghee) and MCT oil, blended to a creamy consistency. This MCT Oil works exactly the same way as Brain Octane in the recipe.

Bulletproof Coffee Preparation

  1. Brew 2 cups of Bulletproof coffee using the method of your choice
  2. Combine with 2 tablespoons of unsalted grass-fed butter (or grass-fed ghee for a dairy-free option)
  3. Add 2 tablespoons of Bulletproof MCT Oil (this product)
  4. Blend in a high-speed blender (or use an Aerolatte® frother) until a creamy head of foam forms
  5. Pour and drink while hot

Good to Know

Should I get this or Brain Octane?

This MCT Oil is a C8+C10 blend at a lower per-mL cost. Brain Octane is 100% C8 — more concentrated per tablespoon and priced higher. If you want the shortest, most concentrated MCT profile, go with Brain Octane. If you use MCT oil in larger volumes and want to stretch the budget without dropping down to a lauric-acid-inclusive product, this is a good middle option.

How is this different from coconut oil?

Coconut oil is roughly 62% medium-chain triglycerides mixed with longer-chain fats and lauric acid. This MCT oil isolates only the C8 and C10 fractions. It’s liquid at room temperature and flavourless, whereas coconut oil is solid below ~24°C and tastes distinctly of coconut.

Why exclude lauric acid?

Lauric acid is technically classified as a medium-chain fatty acid (C12) but behaves more like a longer-chain fat in digestion. Some MCT products marketed on the strength of "coconut MCT" are largely lauric acid, which changes both the digestion profile and the concentration of the shorter MCTs. This product excludes lauric acid so what you get in each tablespoon is C8 and C10 only.

Which size should I get?

This 946mL bottle suits regular users. The smaller 473mL bottle is a starter size at a lower total cost, useful if you’re trying out MCT oil for the first time or want to compare it to Brain Octane before committing to a larger bottle.

  • 5 stars: 608 (91%)
  • 4 stars: 47 (7%)
  • 3 stars: 6 (1%)
  • 2 stars: 3 (0%)
  • 1 star: 5 (1%)
J
Joanne

Always great products and seevice

A
Ash B. (Queenscliff, AU)
Bulletproof™ MCT Oil - 946 ml

This is great stuff I have it in my bulletproof coffee every morning as well in my normal coffee so roughly 3 tablespoons per day it gives me an extraordinary amount of energy to keep me going for the entire day, I couldn’t recommend this enough it’s so good

F
Fiona R (Sydney, AU)
I love it!

Smoothest MCT oil, I love this brand alot.

S
Shaye New (Melbourne, AU)
MCT oil

I have added MCT oil with my morning coffee and it helps with my energy level!

G
Georgie (Adelaide, AU)
Great product!

Love this for bulletproof coffees or even just in a salad dressing - no taste at all. Highly recommend!

N
Neil White (Melbourne, AU)
Great Product

I've been using this MCT oil for many years and not intending to change

E
Ellie Graham (Brisbane, AU)
Great product

Since adding to my coffee it makes me feel full all day!

M
Margaret Mertuszka (Melbourne, AU)
MCT oil

This is the best brain fuel to kickstart the day, allowing high levels of concentration till lunch, very impressive!

A
Arterium Angledal (Brisbane, AU)
Fast & professional!’

Great products! My orders arrive fast 🚚 and the experience is seamless. Happy!!

Z
Zea Perrotta (Adelaide, AU)
Great products

Loving collagen and MCT oil. Recommend.

G
Georgie Grigg (Canberra, AU)
SO good!

I love the Bulletproof MCT oils! I have the normal one and C8 one and they help me get into ketosis so easily! I use them in my teas and as salad dressings. Highly recommend!

M
Magdalena Valero (Sydney, AU)
Quick and true Bulletproof MCT Oil

Quick delivery and the real bulletproof MCT oil definitely recommend buying Bulletproof from Optimoz !

V
Vikki Rose

I use MCT oil daily in my bulletproof coffee and it is tasteless, does not affect the coffee enjoyment at all and my brain is energised for the morning or even the day.

T
Tenneille Quin (Perth, AU)
Bulletproof™ MCT Oil - a big yes!

I tried Bulletproof™ MCT Oil on the recommendation from a friend. I am a busy working mum and find the juggle hard. Most days I find I need a lie down or rest. I've been using Bulletproof™ MCT Oil for about 2 weeks now and haven't had a single rest or lie down since. I have Bulletproof™ MCT Oil every morning in my ceremonial Cacao and can't taste the addition. It's amazing. I won't be giving it up any time soon.

g
giorgia Bruschi (Brisbane, AU)
Bulletproof

I love this product.
Perfect with my morning coffee
The web side offers a large selection of bulletproof idem and the delivery is very efficient.
Never had any issues.

J
Jenny Corbett (Melbourne, AU)
Love this stuff!

Always put it in my drinks, over veggies & salads

J
Js
Bulletproof MCT oil

Very happy! Good value and fast delivery.

B
Beryl O'Brien (Strathalbyn, AU)
No trouble ordering good price and quick delivery.

See above

L
Lorrae Jones (Brisbane, AU)
Exclellent Product.

Excellent product, from a great company. High quality and blends well into food and beverages, absolute game changer, with so many health benefits.

S
Stuart Briggs (Perth, AU)
Love the morning kick

I have been using this for a couple weeks now in place of other MCT oil substitutes and have really noticed an uptick in alertness. I also find my bulletproof coffee more satisfying and lasts longer even after crossfit.

A
Alexandra Laws (Adelaide, AU)
Gives you an extra mental edge with your coffee

Great clean MCT oil when added to your morning brew makes for a brilliant way to start your day.
Add some ghee as well and you’ll be off to the races with mental clarity and cohesion for the day.

E
Elvira Reichmuth (Melbourne, AU)
MCT Oil

Easy to order on line fast shipping great product
Highly recommend

R
Robert Wakely (Melbourne, AU)
Prompt - excellent service

All super.

A
Angie Flemming (Brisbane, AU)
Transforming my wellbeing!

Being introduced to OptimOz is the best thing that has happened this year! Loving the MCT Oils and just ordered supplements. It is my new "go to" to support my wellbeing!

J
Jose Noel Teh (Melbourne, AU)

Very good MCT OIL

J
Jarvis Dekker (Perth, AU)
The good stuff

Great product, been using it in my morning coffee for a few months now. Reasonably priced and a nice big bottle, will definitely be ordering more

J
Jack B. (Melbourne, AU)
So much more alert and

So much more alert and focussed

R
Ross B. (Melbourne, AU)
Well packaged, neutral taste -

Well packaged, neutral taste - goes well in my morning Bulletproof Coffee to give me energy for the day!

P
Prue P. (Sydney, AU)
I’ve been making Bulletproof coffee

I’ve been making Bulletproof coffee with this. I bought the pack and the electric whizz works so well! I keep it all at work as it is so easy to make there. Thank you

S
Salmat M. (Sydney, AU)
Today is day 39 of

Today is day 39 of my low carb, high fat diet. Bulletproof MCT oil has been integral to help me get fat adapted, fight hunger and give me energy to do all my normal exercise activities and life as a parent of two young children.
I love to add it to warm almond milk with a touch of cinnamon right now.

J
Jena S. (Brisbane, AU)
This is great , and

This is great , and the new style bottle with the spout is so much more convenient and makes no drips.

K
Kingsley B. (Perth, AU)
Great product, blends really well

Great product, blends really well and no flavour. Recommended

b
ben

What percentage C8 and C10 in MCT oil and why isn't that info available in the description
Thanks Ben

OptimOZ.com.au

The ratio of C8 to C10 in the Bulletproof MCT Oil (formerly XCT oil) is proprietary and we do not have this information to share with you. This is like Bulletproof's special sauce. If you prefer C8 MCT Oil, go with Brain Octane​.