Welcome to OptimOZ! The Biohacker Store. Free Delivery over $99 in Australia.


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Frequently Asked Questions

OptimOZ Pty Ltd is an Australian owned and operated company established in Sydney in 2013.

Track your order  |   Return or Exchange Items (contact info@optimoz.com.au)

Search for an answer to your question below. If you can't find it, email is the best way to reach us, although you can also message us via our Facebook or Instagram pages. Contact us at info@optimoz.com.au. or WhatsApp. We will respond as soon as we can.

OptimOZ offers same or next business day dispatch. Orders over $99 are shipped free within Australia. Optional faster express delivery options are available too. We're a small business focused on meeting your needs and happy to help however we can, within reason. We offer a 100% Satisfaction Guarantee. You can initiate a return or request an exchange if there's an issue within 90 days of purchase (happily, returns are a rare occurrence).

Within Sydney, we've also introduced a same day delivery courier option for orders received by 9:00am. This means you can receive your order by 3 or 4pm the same day. Beats fighting traffic. That's pretty sweet.

Products FAQ

Bulletproof Brain Octane Oils contains only C8 (Caprylic Acid) one of the shortest medium chain triglycerides (MCT). It is more rapidly absorbed by the body than MCT oil which is a combination of both C8 and C10 MCTs. Brain Octane is the popular choice for brain fuel while MCT oil is preferred for physical energy. This blog post compares MCT oils.

In order to always provide the freshest coffee beans, Bulletproof sources beans from estates in Columbia for roasting in December to June and sources coffee beans from an estate in Guatemala to provide beans from June to December.

A meticulous processing method from picking the cherries to bagging the coffee which makes the coffee as free of mycotoxin (mould) as possible. This is a single origin (from one farm and no mixed batches), grown at high altitude, mechanically processed, passive organic and Rainforest Alliance certified coffee (farmers earn 30% more than their counterparts under FairTrade programs).

When you¬†make Bulletproof Coffee¬†¬†you can¬†experience a steadier¬†high and enjoy instead of crashing after a couple of hours and repeating the cycle for the rest of the work day. You can avoid the nausea, jitteriness and headaches associated with many other brands of coffee ‚Äď even other premium single origin beans that can vary in quality week-to-week. You get the antioxidant benefits of coffee without negating them with mycotoxins common to 95% of coffee.

For a full list of benefits, see the manufacturer's website: Bulletproof.com.

Combine the coffee with MCT or Brain Octane Oil and some deliciously creamy butter or ghee from grass-fed cows for an amazing Bulletproof Coffee experience that will leave you satiated, focused, energised and happy all day. :-)

Here's a Recipe:


At least 2 tbsp unsalted grass-fed butter or ghee (I like up to 6 tbsp, or 80g or 88 ml).1-2 tbsp of Brain Octane or MCT oil (15-30 ml).2 cups (~453g or 500ml) of hot coffee brewed with low-toxin beans (like Bulletproof Upgraded Coffee). You'll need 12-15g of beans which works out to about 2-3 tablespoons.Also check out our neat How to Make Bulletproof Coffee video :-)


Brew 2 cups of black coffee with Bulletproof Coffee beans. A steep time of 60s is enough. The longer you steep, the more bitter your coffee (and potentially less flavourful).Preheat a blender with some hot water. Then remove the water and add butter and MCT oil.Pour your coffee into the blender. You could also use a bowl and a hand blender.Blend and enjoy! (Or shake up in a Klean Kanteen)Optionally, add in raw chocolate powder, cinnamon and/or vanilla.

Check out our recommended Bulletproof Coffee Making Kit or our recommended Aeropress Coffee & Espresso Maker, Porlex Mini Grinder and the Able Stainless Steel Filter in our Coffee Gear section.

Currently, OptimOZ.com.au is the best place in Australia to buy Bulletproof Coffee, MCT Oil, Brain Octane, Charcoal, Unfair Advantage, Collagen bars and the rest of the product range. We also sell a complementary range of superfoods and nootropics sourced from around the world.

There are a number of Australian shops now stocking some Bulletproof products, but the complete range is only accessible here on OptimOZ.com.au

Delivery & Returns

Yes! We deliver using a trackable courier service.

Please allow 4-6 business days for delivery.

Note that if your order is over the allowable duty-free threshold of NZ$300 in value you will attract the attention of New Zealand customs and will have to pay applicable duties and GST. 

As soon as we have a large enough volume of orders from our New Zealand customers, we will set up a warehouse in Auckland so we can service you faster and at better shipping rates. :-)

All Australian OptimOZ orders are sent via trackable E-Parcel with Australia Post or Express Post.

If you have received a dispatch notification email, you can use the tracking number included in it to find out where your order currently is by entering it at track.optimoz.com.au You can also find your tracking number by logging into your account.

If you have not received a dispatch notification within two business days of placing your order, please contact us and we will do whatever we can to help! Note that update emails are sent between 5pm-6pm each day.

New Zealand customers: To track your package, enter your order number at Aramex.co.nz

On the rarest occasion, we may run out of stock of a product which may delay your order. We will do our best to make sure this does not happen, but if it does we will keep you well informed about what's going on and give you complete flexibility to change or cancel your order.

Australia Post's regular parcel delivery timeframes are listed here. Covid-19 related changes around lockdowns and hygiene procedures have and may continue to cause delays.

Delays immediately following public holidays is common.

Express Post deliveries can arrive as early as the next business day within metro centres.

If you live within Sydney metro, then you are unlikely to benefit from Express shipping as it will probably take just as long as regular post. Our GoPeople same day service for orders received on the morning of any business day is the fastest available delivery method.

If you have received a dispatch notification from us, you can track your order here New Zealand customers: Please track your order at Aramex.co.nz

If you have not yet received a dispatch notification, note that if an order is received by 12.30pm (Sydney time) then our goal is to dispatch the same day. Otherwise, your order will be packed and shipped on the next business day and you will typically received a dispatch notification between 5pm-6pm (AEST.)

For more information about how your order is processed and delivered, see our Shipping Information page.

Our goal is to keep you happy. We generally will accept returns of unused products within 90 days of purchase. The returns process varies depending on the product/brand in question.

For electronics, the first point of contact is the manufacturer.

For Heartmath products, please contact support@heartmath.com 

Shipping charges are non-refundable unless the return is a result of our error, in which case we will provide you with a Reply Paid address for the return leg. Before returning an item, please obtain a return authorisation by emailing us.If you receive a product that is faulty in anyway, we will of course make this right.

Perishable items within 3 months of their expiry date cannot be returned.

Woolworths HomeBrand and Westgold are the most economical options. Some tastier options include Organic Times (actually states 'grass-fed' on the label), Ashgrove and Paris Creeks. For the adventurous, try Pepe Saya's grass-fed cultured butter or ghee. This regularly updated blog post details Australian butter brands and where to find them.

The new bluetooth sensor is compatible with both Apple and Android devices. If you have an iPhone, you also have the option of the lightning sensor. The emWave2 is good to use while working at a computer but is inconvenient and not portable compared the the device connectable sensors. As for the technology I believe it is effective and of a high quality. The Inner Balance app (a free download from the iTunes or Android stores) is great and has all the information and recording options that 99% of users would need. The other 1% at the extreme end of the biohacking spectrum would enjoy the games and more data that you get from the emwave2 as well, but to a lesser extent.

About Us / Shopping FAQ

Five possible reasons:

It may be expired.

You may have typed a number instead of a letter.

You have not met the minimum order amount to validate the coupon.

The coupon is restricted to a particular product or collection of products.

Generally, coupons are not applicable to 2.25kg bags of coffee, electronics, kits or bundles.

As of January 2021 we no longer issue generic coupon codes, so if you found a discount code on a coupon website, it will not work. Personal discount coupons are now issued directly to our customers via email.

Awesome! Yes, we can supply you with some Bulletproof products, Kimera Koffee, Bioptimizers and Primal Collective products. email wholesale@optimoz.com.au to get the ball rolling.

We accept all major credit cards, PayPal, electronic or manual bank deposit (in Australia) or Bitcoin. Note that manual bank deposit payments require an extra day of processing time.

If you selected the bank deposit option, we'll wait to receive your transfer before processing your order. Our account details for bank transfers:


Commonwealth Bank
BSB: 062-231

Account Number:
1040 2949

Do you have a phone number?

Alas, no. However, you can message us on WhatsApp:

Or Instagram or Facebook.

We have a very small team that collaborates remotely online across different time zones and currently don't have the capacity to take phone calls. Just because we don't have a phone number, doesn't mean we're not a real business.

We've been serving customers since 2013. At last count, we have 12.696 positive reviews and we'll do our best to get one from you too :)

If we did display a phone number, i'm afraid no one would answer when you called and you would be stuck with voicemail. If you want to enquire about the status of your order, please email info@optimoz.com.au. We'll do our best to answer your question as quickly as possible. 

Have another question? email us at info@optimoz.com.au or whatsapp:
And we will be happy to help :-)

We are based in Sydney Australia. All orders also ship from here.