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


Your Cart is Empty

Four Sigmatic

Four Sigmatic Cordyceps & Chaga Mushroom Coffee x10 sachets

Mushroom Coffee with Cordyceps & Chaga - all the benefits of coffee, minus the jitters

Each serving contains:
  • 100% Arabica Coffee (50 mg)
  • Dual-extracted Wild-crafted Siberian Chaga Mushroom (350 mg)
  • Dual-extracted Cordyceps Mushroom (150 mg)
  • Organic Eleuthero (250 mg)

We run each coffee batch through a third-party laboratory to ensure the absence of mycotoxins. As with all of our products, we source the highest quality ingredients.

  • Vegan
  • Paleo
  • Sugar free
  • No fillers
  • Non-GMO


  • Coffee with the best of nature

    Coffee is great for energy—it just often comes with a side of jitters and the dreaded mid-day crash. Chaga and Cordyceps support a strong body to avoid coffee’s dark side. You’ll have to find another excuse for mid-day naps.

    Mix. Sip. Defend.

    • Nut milk, natural sweeteners, and coconut oil are optional additions if you have a sweet tooth. You can even foam the milk if you know how to do that.
    • Made with organic, Arabica coffee beans with only half the caffeine as a regular cup of coffee (50 mg of caffeine).
    • Brews medium and bold. You’ll completely forget the word “mushroom” is on the bag while you’re drinking it. You’ll remember when you notice you haven’t crashed around mid-day.
  • How and when to use:
    • Add one packet to 7 fluid oz. of hot water, or blend it into your favorite smoothie.
    • Drink this beverage in the morning for balanced stimulation, and at coffee breaks for upgraded enjoyment.
    • Drink up to two packets per day.



    Organic Instant Coffee

    Our shade-grown, organic coffee is grown in Colombia. After carefully roasting and brewing the beans, we concentrate the coffee by evaporation, and finish it off by spray-drying it into a pure instant powder. We come from Finland and Finnish people drink more coffee than anyone else in the world. So we take this stuff seriously. We even have a 3rd party lab test each batch for purity. You’ll get 50 mg of caffeine per serving.

    Organic Chaga Mushroom (350 mg per serving)

    Chaga (Inonotus obliquus) supports immune function and has been used for hundreds of years. Us Finns used it as a coffee substitute back in WWII when beans weren’t available. We wildcraft our Chaga, which means we get it directly from birch trees (with sustainable practice).Then we extract its fruiting bodies and spray dry the concentrate. The final product is a mixable, organic powder with no fillers, or carriers.

    Organic Cordyceps Mushroom (150 mg per serving)

    Cordyceps are famous among endurance athletes all around the world. Studies show that it supports energy and endurance. The power comes from the fruiting body of Cordyceps militaris mushroom. In nature, it grows on caterpillars, but we love our multi-legged furry friends so we don’t use that kind. Ours are 100% vegan and cruelty free.

    Organic Eleuthero (250 mg per serving)

    An adaptogenic root used in Asia and Russia for hundreds of years. It’s known as the Siberian ginseng and may support stamina, endurance, and overall wellbeing. That’s all we can say legally, but we could go on and on.

  • Ben Greenfield: "I’ve been using Four Sigmatic products for awhile now and I’m impressed by the efficacies of their mushroom products. They have helped me to lower stress and improve my sports performance. The most impressive part is still theflavour, which is much better than the name “mushroom drink” initially implies. Myfavourites are the mushroom hot chocolates and the mushroom coffee. All very delicious. I use them. I like them. I support the mission!"

    Rich Roll (Ultra-Endurance Triathlete & Bestselling Author): "The term ‘superfood’ may be prone to exaggeration but I can honestly say that Four Sigmatic adaptogens and mushroom blends have been an integral and instrumental component of my success equation. Also a crucial and easy way to stay on top of my performance nutrition when traveling!"

    Abel James:"Tero’s company [Four Sigmatic] makes some of the best mushroom coffees, cocoas, and elixirs I’ve tried."

    Stephanie Bishop (Triathlete, Death Race Champion):"Between Cordyceps Elixir and Chaga Elixir, I have been training at a higher intensity with greater sustained energy, as well as recovering amazingly quickly. Bonus: They are delicious!!!"

    Emily Schromm (Crossfit Coach & Athlete):"I was encouraged to try Four Sigmatics Cordyceps because of the amount of stress I was putting my body through my schedule and through my workouts. After a week of having them every day, my girlfriend told me that it was the happiest, most calm I had ever been in years."

Customer Reviews

Based on 42 reviews
Marie D. (Sydney, AU)
Love this coffee:green_heart: :coffee:️ It’s

Love this coffee:green_heart: :coffee:️ It’s an awesome way to start the day:ok_hand:

Belinda E. (Darwin, AU)
Fantastic product and fantastic service.

Fantastic product and fantastic service. I will be ordering again. Really pleased with this business. Thank you

Yair K. (Lisarow, AU)

Delicious hot or cold ( iced coffee) full rich flavour - none of that’ instant coffee’ taste!
Great addition to any coffee connoisseur‘s kit

Mathew R. (Brisbane, AU)
Perfect to start the day

Perfect to start the day and get the brain stimulated. Tastes great also!

Jess B. (Perth, AU)
This was recommended on Tim

This was recommended on Tim Ferris' podcast as a way to get good mental boost when working on difficult tasks. Cordyceps was also recommended by some of my Asian friends as a very common Chinese herbal medicine for fatigue and energy. Combined with decent coffee and this is my go to drink for heavy concentration. This doesn't give me the jitters as well.