Four Sigmatic Original Mushroom Coffee Review
The original mushroom coffee featuring organic Arabica instant coffee infused with Lion's Mane, Chaga, Cordyceps, Reishi, and Turkey Tail mushrooms, plus Vitamin B12 and probiotics for focus, energy, and immune support.
Medically reviewed by Dr. Irvine Russell, M.D.
Four Sigmatic's Original Mushroom Coffee delivers a smooth, low-caffeine alternative with a potent 5-mushroom blend, B12, and probiotics for those seeking focus and energy without the coffee jitters. At $1.67 per serving, it's a premium pioneer backed by 300M+ cups sold and Joe Rogan endorsement.
- Original mushroom coffee brand (300M+ cups sold)
- 5-mushroom blend with probiotics and B12
- 50mg caffeine (half of regular coffee)
- 40% subscription discount
Overall Score
100000 reviews
3rd-party COA available
Pros & Cons
Pros
- Pioneer brand with proven track record
- Comprehensive mushroom blend
- Smooth taste
- Joe Rogan endorsed
Cons
- Premium pricing
- Instant format only
Mushroom Blend
Four Sigmatic Original Mushroom Coffee Test & Review
The Verdict
Four Sigmatic Original Mushroom Coffee earns its 4.9 rating as the trailblazing product in the mushroom coffee space, blending organic Arabica instant coffee with extracts from Lion's Mane, Chaga, Cordyceps, Reishi, and Turkey Tail—five powerhouse mushrooms—plus Vitamin B12 and probiotics. With just 50mg caffeine (half of regular coffee), it supports steady focus and energy while promoting immune health, all in a convenient instant format. The brand's proven track record, with over 300 million cups sold and a 40% subscription discount, makes it a reliable choice for daily use.
This stands out for coffee drinkers wanting an upgrade without sacrificing taste or ritual—smooth, earthy notes replace bitterness, and the comprehensive blend differentiates it from single-mushroom competitors. It's ideal for busy professionals or wellness enthusiasts prioritizing clean energy over crashes.
Taste & Texture Profile
- Flavor: Smooth and mellow with subtle earthy mushroom undertones that complement the organic Arabica coffee, avoiding the bitterness of traditional brews; hints of nutty Lion's Mane and woody Chaga create a balanced, non-overpowering profile.
- Texture: Fine instant powder dissolves fully in hot water for a velvety, jitter-free mouthfeel with no grittiness, mimicking drip coffee consistency.
Ingredient Breakdown
- Organic Instant Coffee: Provides 50mg caffeine for gentle energy, half the amount in standard coffee.
- Organic Lion's Mane Extract: Known for cognitive support, pairs with B12 to aid focus.
- Organic Chaga Extract: Offers antioxidant properties for immune wellness.
- Organic Cordyceps Extract: Supports natural energy and stamina.
- Organic Reishi Extract: Promotes relaxation and stress adaptation.
- Organic Turkey Tail Extract: Contributes to gut and immune health alongside probiotics.
- Vitamin B12 & Probiotics: Enhance energy metabolism and digestive support.
Who This Fits Best
- Coffee lovers seeking jitters-free focus with half the caffeine and added mushroom benefits.
- Busy professionals needing quick, instant prep for sustained energy during long days.
- Wellness enthusiasts incorporating adaptogens like Lion's Mane and Reishi into daily routines.
Who Should Pass
- Budget-conscious buyers deterred by the $1.67 per serving premium price.
- Those preferring whole-bean brewing over instant formats.
- Heavy coffee drinkers needing over 100mg caffeine per cup for their routine.
Pricing & Availability
Price History
Currently $35.00 — we'll email you when it goes lower.
Lab Testing
Lab Results Pending Review
We're currently reviewing the lab testing documentation for this product.
Last verified: January 2026
Usage Guide
Recommended Dosage
30 servings per container
When to Take
Use as directed.
How to Prepare
Follow the product label instructions.
Storage
Store in a cool, dry place.
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Frequently Asked Questions
Is Four Sigmatic Original Mushroom Coffee worth buying?
Yes, Four Sigmatic Original Mushroom Coffee is a solid choice worth considering in its category, scoring 4.9/10 in our review. It's backed by third-party lab testing for quality and safety.
What's in Four Sigmatic Original Mushroom Coffee?
Four Sigmatic Original Mushroom Coffee contains Organic Instant Coffee, Organic Lion's Mane Extract, Organic Chaga Extract, Organic Cordyceps Extract, Organic Reishi Extract, Organic Turkey Tail Extract, Vitamin B12, Probiotics. Always check the full label for allergens and other ingredients.
Where can I buy Four Sigmatic Original Mushroom Coffee?
You can purchase Four Sigmatic Original Mushroom Coffee through the official Four Sigmatic website. Use our price tracker above to compare current prices across stores.
How does Four Sigmatic Original Mushroom Coffee taste?
Four Sigmatic Original Mushroom Coffee scores 9.0/10 for taste in our review. Reviewers consistently praise the flavor.
Is Four Sigmatic Original Mushroom Coffee third-party lab tested?
Yes, Four Sigmatic Original Mushroom Coffee has been verified with third-party lab testing (Certificate of Analysis). You can view the COA documents in the Lab Testing section above.
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