Up To 45% OFF Ground Coffee + FREE Vanilla Creamer
Organic coffee with functional mushrooms that tastes like coffee because it is coffee. Build your custom mix-pack that lets you brew it your way—not bitter, no jitters, just balanced coffee you can feel good about.
Loved by 100,000+ five-star reviewers and poured into 300 million cups (and counting). Save up to 45% today and get a FREE Vanilla Creamer when you buy 3+ bags.
Sharp focus, no jitters. Organic coffee + lion’s mane. Dark chocolate notes.
Clean focus, no crash. Organic coffee + lion’s mane. Caramel notes.
Smooth digestion. Organic coffee with probiotics + turkey tail. Milk-chocolate notes.
Unwind without caffeine. Organic decaf with reishi + chaga. Milk-chocolate notes.
Lower caffeine, steady clarity. Organic half-caf with chaga mushroom, ashwagandha, and eleuthero extracts.
Max energy. Organic high-caf with lion’s mane + cordyceps. Dark-chocolate notes.
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Up To 45% OFF Ground Coffee + FREE Vanilla Creamer
Find Four Sigmatic in the Coffee Aisle!
Unlike Any Other Mushroom Coffee
9 in 10
Four Sigmatic buyers say it works
94%
of Four Sigmatic buyers plan on buying again
Ranked by Four Sigmatic buyers highest on taste & efficacy vs buyers of competitive products.
People switch to Four Sigmatic because of:
- Better Taste
- Better Ingredients
- Better Results*
Trusted by experts & performers
Trusted by
Experts &
Performers
Joe Rogan
Comedian, Host of The Joe Rogan Experience
“I drink Four Sigmatic Lion’s Mane all the time... It actually tastes great, and it’s damn good for you. Their company is F***ing slick.”
Thomas DeLauer
Fitness Expert & Host of a Leading YouTube Channel
"It's next-level cognitive function. I'm clicked-on, focused, but also smooth and calm. You just have to feel it to see what I mean. Four Sigmatic is the OG and the real deal, don't fall for knock-off phonies."
Dr. Mark Hyman
Physician and New York Times bestselling author
“Reishi, lion’s mane, chaga and cordyceps mushrooms contain powerful properties”
Rich Roll
Ultra-Endurance Athlete, Host of The Rich Roll Podcast
"My morning go-to when I need to get up, go, and keep going."
Your Coffee, But Better
Made with organic Arabica coffee and functional mushrooms, this blend fuels your day with focus, balanced energy, immune support, and gut health—all without the crash. Best of all, it’s smooth, bold, and free of any mushroom flavor.
Flavor
Enjoy a dark roast with rich notes of dark chocolate.
Expect Result
Clear, calm focus and energy, no jitters, no crashes.
Made with 100% organic ingredients—no fillers, starches, or artificial junk.
Tested For ToxinsFree from heavy metals, allergens, mycotoxins, and mold.
Real MushroomsOnly fruiting bodies—no mycelium, grains, or fillers; wildcrafted or log-grown, never grown on rice.
Full Ingredient List:
Organic Arabica Coffee, Organic Chaga, Organic Lion's Mane Mushrooms
Focus and Energy without the Jitters
"This is the best-tasting mushroom coffee that we’ve reviewed — it’s sweet without being syrupy, with just a touch of nuttiness and earthiness."
The Authority on Music, Politics, and Culture
Four Sigmatic vs
Regular Coffee
Coffee Made Smarter™
