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Protect Herbal Tea
IMMUNITY
INSTANT
Organic wild berry herbal tea powered by chaga mushroom and elderberry for immune support that tastes delicious.
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Pack Size:
30% OFF of first order
20% OFF on recurring orders
Lowest Price Option
Cancel Any Time
+200M Cups of Four Sigmatic Sold
60-day Money Back Guarantee
Refill Ships In 30 Days
How to use & taste
Mix ¾ tsp with 8 fl. oz. hot or cold water and stir briskly. Berry-rich and earthy, balanced with a hint of natural sweetness.
Benefits
Immune support without caffeine
Ingredients
Organic wildcrafted chaga extract
Organic elderberry extract
Organic Acerola Cherry Powder
Organic blueberry juice powder
Frequently Asked Questions
Functional mushrooms like Lion’s Mane, Reishi, and Turkey Tail provide a range of benefits, including immune support, stress relief, and mental clarity. Incorporating them into your daily routine is a natural way to nourish your body, support your mind, and enhance overall well-being.
No mushroom flavor here! Depending on the variety, Four Sigmatic Instant Teas feature delicious notes like ginger, wild berries, lemon, mint, and more—crafted to delight your taste buds.
Nope! There are no added sweeteners. Feel free to add your favorite sweetener or enjoy it as is.
Our teas dissolve instantly in hot or cold water—no bleached tea bags or microplastics are needed. It’s a clean, convenient way to enjoy your tea anytime, anywhere.
Absolutely! Four Sigmatic products are USDA-certified organic, made with real mushroom fruiting bodies (not mycelium), and crafted without fillers, gums, and artificial flavors.
Yes! Our products are purchased as a monthly membership, designed to help you build habits that stick. While habits typically form over 30 days, maintaining them consistently leads to lasting change. For those who prefer to try before committing, we’ve designed limited edition one-time Starter Kits: Shop Starter Kits here.
Rest assured, we offer a 60-day Happiness Guarantee. If you want to cancel your Membership or change the delivery date of your upcoming order, you can do so anytime through your Account Page. Remember, consistency is key to achieving both short-term and long-term benefits!
Rest assured, we offer a 60-day Happiness Guarantee. If you want to cancel your Membership or change the delivery date of your upcoming order, you can do so anytime through your Account Page. Remember, consistency is key to achieving both short-term and long-term benefits!
Absolutely! We offer a 60-day money-back guarantee, no questions asked.
Nope! The founder, Tero Isokauppila, is Finnish. Four Sigmatic was founded over 10 years ago and pioneered the mushroom coffee movement. With the support of wellness experts like Tim Ferriss, Dr. Mark Hyman, and others, Four Sigmatic has become the leader in making functional mushrooms a part of everyday routines worldwide.
Immune Support In A Cup
Immune Support
Protect your internal defenses with this delicious, functional immune-boosting tea. This blend of chaga, elderberry, acerola cherry, and beetroot were specifically chosen to help shield your body from the inside out.
Vitality
Being vital requires that the foundational aspects of our wellbeing are met: proper sleep, a healthy microbiome, low stress levels, and a strong immune system. This powerhouse blend of antioxidant rich, immune-supporting, and gut loving ingredients ensures your system is replenished with the nutrients it needs to have the vitality you deserve.
Balance
Adaptogens, like chaga mushroom and acerola cherry, give your body tools to more efficiently and effectively handle the inevitable stressors life throws your way.
No Toxic Tea Bags
Say goodbye to microplastics and chemicals – our instant teas come in a convenient tea powder, free from toxins, fillers, and artificial ingredients.
Caffeine Level
Caffeine Free
Tasting Notes
Berry-rich and earthy balanced with a hint of natural sweetness.
Usage
Instant, dissolves in hot or cold water
When to consume
Morning or mid-afternoon
Herbalist Formulated
No Sugar
Tested For Toxins
Gluten Free
Science-Backed
Certified Organic
Plant-Based
No Filler Mycelium
Science-Backed Ingredients
Meet your ultimate immune system supporter. Packed with antioxidants, this mushroom helps keep your body well. Our chaga’s sustainably wildcrafted on birch trees, just as nature intended. We extract the real chaga (no mycelium, fillers or grains here) to unlock the best of the best benefits.
Immune Support
Organic elderberry extract is a powerful immune booster, rich in antioxidants and vitamins that help protect your body during vulnerable times. Known for its natural ability to support respiratory health and reduce inflammation, it’s your go-to for staying healthy year-round.
Immune Support
Small but mighty, this tropical superfruit bursts with natural vitamin C to help your immune system flourish. We source organic acerola cherries at peak ripeness, then gently dry them to preserve their tangy flavor and potent antioxidants—no fillers, grains, or carriers. It’s a pure, vibrant boost for your everyday routine.
Vitamin C
The bright blue berry loved for its high antioxidant content, particularly flavonoids and anthocyanins.
Antioxidants
Over
100M+ 100M+
Cups of Four Sigmatic served
& thousands of lives changed
Don't just take our word for it
Formulated to change your day
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and Start feeling the benefits
Four Sigmatic vs
Regular Tea
Tea Made Smarter
Type
Instant Tea, free from toxic
Teabags with microplastics
Functional Mushrooms
Herbalist Formulated
Nothing artificial
Sugar-free
USDA Organic
100% real mushroom
We only use the fruiting body extracts, no cheap mycelium.
No mushroom, no benefits
Mushroom Legacy Beyond a Decade
Finnish Funguys
- Founded by a 13th-gen farmer Tero Isokauppila and team of Finnish Funguys
- After years of perfecting, Mushroom Coffee was born!
- From freezing Finland to sunny California, we made the leap
- Tero’s book 'Healing Mushrooms' became an Amazon bestseller
The Shroom Boom starts
- Team grows; three offices later, we plant roots in Venice, CA.
- Mushroom Coffee becomes a sensation. Beloved by podcast giants and a-list celebs
- Shroom Rooms spore up in Venice, CA, and Soho, NY to serve FREE mushroom coffee
- Tero’s third book, 'Healing Adaptogens,' is yet another Amazon hit
200 Million Cups Sold
- Find Mushroom Coffee at thousands of U.S. stores like Whole Foods and Sprouts
- A #1 bestseller on Amazon, giving the best coffee brands a run for their beans
- It’s official! We’ve served over +200 million cups of coffee
- And stay tuned, because there’s so much more brewing...
