Here, we provide an honest Four Sigmatic review of their products and mushroom coffee. Plus: You can get 15% off using the code PARSNIP. This review contains affiliate links and special discounts available to our readers!

Click here and use the Four Sigmatic promo code PARSNIP for 15% off!
Mushrooms are a seriously underrated food. Most people tend to think of pretty mainstream ‘shrooms — white, baby bella, shiitake — but so many variations of fungi have been used for their medicinal properties for thousands of years all over the world. I was lucky enough to have my best friend introduce Four Sigmatic to me, and I would love the opportunity to introduce this superfood to you.
Tero, the founder of Four Sigmatic, grew up on a farm in Finland and started Four Sigmatic with many other mushroom lovers that felt plants and mushrooms should be an experience, and not just a supplemental pill. Their team has worked impossibly hard, using third party testers to scientifically study all of their ingredients. All this work has translated into simplified ways to add these superfoods to your daily routines. Check out their website and FAQs for more information.
Whether you’re brand spankin’ new to mushrooms or are already using similar products in your daily routine, this Four Sigmatic review will help you learn about the benefits of medicinal mushrooms, how to use Four Sigmatic products, and how delicious they are!
From coffee to protein to skincare, here is our honest review of Four Sigmatic and our favorite products.

Four Sigmatic Mushroom Coffee
Raise your hand if you drink coffee. Just kidding, almost everyone does! But raise your hand if you drink too much coffee because you’re drained by midday and cannot imagine going on without it. (…raises hand)
The go-to is to grab more caffeine, but it’s likely you’re just missing essential nutrients that could give you the same focus and energy, without all the jitters and crashing.
We can’t do a Four Sigmatic review without talking about their most popular product: Mushroom coffee. So, what makes Four Sigmatic mushroom coffee different than regular coffee?
For starters, the superfoods and adaptogens they contain are shown to support higher focus and concentration, relaxation, steady energy levels, daily wellness, and positively affect your immune system.
The benefits of mushroom coffee are aplenty, from being shown to have anticancer effects, prevent liver disease, and aid in digestive health (thanks, prebiotics!).
All Four Sigmatic coffees are fair trade certified, promoting partnerships with farmers to work towards a goal of greater equity in international trade. Sure, there are a lot of brands out there now that guarantee fair trade, which is amazing, but they don’t contain the extra nutritional benefits.
I am admittedly a coffee snob, so at first, I was a little nervous to try the Ground Mushroom Coffee with Lion’s Mane. You hear mushrooms and coffee together and it’s definitely not my first choice of flavor combinations… But, then again, I’ve also never shied away from trying something new.
This coffee does not taste like mushrooms. I repeat: Does NOT taste like mushrooms! I’ve been using a French press to brew and the flavor is true to its dark roast name. It’s nutty, it’s creamy, and there’s truly a considerable amount of calmness and focus that comes over you. I’m a black coffee drinker personally, but I can’t see why it wouldn’t be equally delicious with a splash of your favorite creamer.

How to Make Four Sigmatic Mushroom Coffee
You can brew Four Sigmatic in a drip coffee machine, or even make cold brew. Four Sigmatic also offers convenient pods that will work in any Keurig® K-Cup® brewing system. If you want something even faster, say you’ve just got to run out the door, they also offer instant coffee (which, as a baker, I’m already considering ways to work this into my chocolate cake recipes! Superfood cake, yes please!).
For Chemex lovers, I found these beans were not ground coarse enough, so the pour over method took much longer than expected. To speed things up, I had to frequently stir the beans, and this is just not a time efficient task in the morning. Stick to the above methods for a stress-free brew!
How Much Caffeine is in Four Sigmatic?
Each Four Sigmatic mushroom coffee product will have a caffeine level indicator on the front of the packaging. It will say “Caffeine Level” and have one of four chosen options:
- Decaf (example: Calm Decaf Ground Coffee)
- Half Caf (example: Balance Half Caf Ground Coffee)
- Reg Caf (example: Think Ground Coffee)
- High Caf (example: Boost High Caf Ground Coffee)
With these options, you can find the level of caffeine that’s right for you. I like to choose “High Caf” as my morning brew and a “Half Caf” as my second cup. Four Sigmatic helps me feel more focused and energized, without the jitters that too much coffee can give.
All Four Sigmatic Products
There are even more ways to work this nutrient dense miracle into your daily routine if you’re not into coffee or not ready for your coffee habit to change. Four Sigmatic also offers:
Four Sigmatic Protein Powders
Four Sigmatic protein powders are available in four varieties (vanilla, cacao, unflavored, or peanut butter). This protein skips all the fillers and instead packs 18g of sustainably sourced plant-based protein and 1500mg of mushrooms and adaptogens. Perfect for sustained energy throughout the day, you can use this any way you would use protein powder (shakes, smoothies, baking, etc.).
Instant Lattes
When it comes to lattes, pick your poison: coffee, golden, chai, or matcha. Each has a unique ‘shroom to help with mental focus, energy, de-stressing, or digestion support.
Four Sigmatic Think Functional Creamer
Four Sigmatic Think creamer comes in either vanilla coconut or cacao coconut flavor. These organic creamers contain lion’s mane and L-Theanine for balanced focus to enhance your coffee.
Four Sigmatic Supplements
If coffee isn’t your thing, supplements and elixirs are caffeine-free concoctions packed with a high dose of mushrooms and adaptogens. The mushroom blends are no-frills powders meant to be blended into your smoothies, coffees, or favorite beverages. Additionally, Four Sigmatic sells cacao mixes under their supplements so you can de-stress with a cozy cup of hot chocolate.
Four Sigmatic Starter Packs
Four Sigmatic starter kits and bundles are a great way to sample several products for a discount.

Is Four Sigmatic Good for You?
When you’re creating a box that works best for you, you can select products based on what they support. You may want to focus more and add energy to your daily routine. You may be looking for a better way to relax or find some balance. I really love that Four Sigmatic’s shop is educational and helps you select based on your needs. While the ingredients are all nutrient dense and full of antioxidants, each mushroom has its own individual benefits. More on that below.
Health Benefits of Mushrooms
The mushrooms, adaptogens, and superfoods that make up Four Sigmatic’s products are unique and each with their own benefits.
The health benefits of mushrooms are numerous, from boosting immunity to relieving stress to boosting brain power. Here are the ingredients in Four Sigmatic’s products and why they’re amazing.
- Chaga: Can be consumed any time of the day, supports your immune functions.
- Cordyceps: Helps support energy production, best before a workout.
- Lion’s Mane: Supports brain function, concentration, and is best early morning/afternoon.
- Reishi: Supports resetting your sleeping cycle, best for 1 hour before bedtime.
- Turkey Tail: Found in the golden latte, best to support gut-health.
- Eleuthero: Stimulates the immune system.
- Yacon: Helps with digestion and contains probiotics.
- Ashwagandha: Stress-reducing adaptogenic herb.
- Tulsi: Also know as “holy basil,” can positively effect anxiety due to stress and depression.
- Rhodiola: Helps combat fatigue and reduces stress.

Four Sigmatic Review of Our Favorite Items
A few years ago, I started adding a daily shake to my morning routine and I noticed a big difference in the way I felt throughout the day. I love Four Sigmatic’s Sweet Vanilla Plant-Based Protein. Four Sigmatic’s protein powders aren’t just protein. The unique blend of mushrooms and adaptogens support immune health, stress relief, and sustained energy, giving you much more bang for your buck when it comes to a protein powder.
The Four Sigmatic Think Coffee has become my go-to for my morning cup of coffee. I use a temperature-controlled kettle to heat my water to 197 degrees, measure out the coffee, toss it into my French press, and set the timer for 5 minutes. The coffee brews while I get ready — and voila — coffee to go with so little maintenance! Get yourself a coffee mug that retains heat, and you’ll be able to sip on this brew all throughout the morning. (I use this one, and it will absolutely keep your coffee warm through the next day, though we both know it won’t make it past the next 20 minutes.)
Last but not least: the Calm Cacao makes me feel so relaxed and calm, so this is definitely an amazing treat right before bedtime. It’s not too sweet, has so much cocoa flavor, and helps curb my sugar cravings, which never fail to appear after dinner when I’m catching up on my favorite TV shows. Toss a marshmallow in for that nostalgic feel.
Is Four Sigmatic Worth It?
Absolutely. Four Sigmatic is basically obsessed with how you feel, providing the world’s most potent, most studied, most nutrient-dense, and most powerful superfoods. Without jitters, sugar crashes, or GMOs. Just organic, fair-trade, sustainably-sourced, and delicious. And for all that, it has to be expensive, right? Nope. Actually, we find Four Sigmatic extremely affordable and worth the price.
Hopefully, this Four Sigmatic review shows you some of the reasons why we love this product so much!

Where to Buy Four Sigmatic
You can easily order Four Sigmatic online (psst: use our Four Sigmatic promo code!). If you prefer shopping in person, you can find them at grocers like Whole Foods and Natural Grocers. If you’re in LA or New York, visit one of their ‘Shroom Rooms!
Four Sigmatic offers so many options for discounted preset bundles to help introduce these superfoods into your daily routine. But you can also build your own custom box based on your needs, subscribe and save, or order as much or as little as needed on your own schedule.
Four Sigmatic Discount Code
Looking to save some money on all Four Sigmatic products? Click here and use our Four Sigmatic coupon code “PARSNIP” to save 15%!
Thank you for reading our honest Four Sigmatic review! We hope that you love and enjoy their products as much as we do. Let us know if you have any questions in the comments below. Here’s to the next nutritional journey!
I love the mushroom coffee! Its so smooth & rich & dark!! I use my French press to brew it. Yum!! 🤗
I cannot wait to try these products! I only checked this out because my beautiful daughter-in-law is Finnish. Thus you’ve sold me on purchasing a few to try.
We have been long time fans of Four Sigmatic for a while now. My daughter LOVES their cordycept blend. They make the best instant coffee!
Hi Catherine, agreed! The only instant coffee I’ll drink! 🙂
This is super interesting and I actually have used a Mushroom powder that is added to soups and recipes for a boost of the health benefits that mushrooms provide. I love incorporating them into meals whenever I can too. I am definitely checking out the coffee you have listed above as that sound interesting and it is something that I can use with all of the health benefits that mushrooms provide.
First time I’ve heard of this… seems good!
Looks like a good product. This is the first time I heard of this brand. Thank you for sharing.
I’ve never heard of this brand, it definitely seems awesome! I would love to try it for sure. Thanks for the review.
Really want to try these. MUSHROOM COFFEE Sounds interesting!!
Love it! Indeed medicinal mushrooms bring a health benefits into your diet.
I can’t wait to try this, the protein powders sound perfect, and I’d definitely be down to try the instant coffee! Thank you for sharing this!
You’re welcome, Isma! Love the instant coffee. 🙂