Written by Holly Xing
"Mushroom coffee for focus" covers everything from a spoonful of ground mushroom in instant coffee to carefully dosed formulas. This guide gives you a checklist you can use on any brand, including ours. JostArriba is one option here: we'll tell you where it fits, and where another brand might suit you better.
In the video above, Steamy Vegan tries six brands over two and a half years (Four Sigmatic, RYZE, Eightbillion, Mud/Wtr, IQ Joe and Ergogenics) and explains what to look for on the label.
Disclosure: the creator says she bought every product with her own money and named JostArriba her top pick. She has an affiliate discount code with us and some other brands, and Eightbillion is listed as a collaborator on the video (video description).
Read the label first
1. Every ingredient listed in milligrams
Studies test specific amounts. A label that says "mushroom blend, 2 g" across six species tells you the total, not how much of the one you care about. Look for a Supplement Facts panel with a number for each active ingredient.
2. Extracts, not just ground mushroom
Ground mushroom is mostly insoluble fiber; extracts concentrate the compounds that dissolve in water. Check whether the label says "extract" and names the part used: fruiting body (the mushroom itself) or mycelium (the root network, often grown on grain).
Doses close to the research
- L-theanine with caffeine. About 100 mg of L-theanine with 40 to 50 mg of caffeine improved attention-switching and alertness versus caffeine alone (Owen 2008; Giesbrecht 2010).
- Lion's mane. Older adults with mild cognitive impairment who took 3 g a day for 16 weeks scored higher than placebo (Mori 2009). Research is still small, so treat it as promising rather than proven.
- Coffee fruit extract. A single 100 mg dose raised plasma BDNF, a protein involved in learning and memory (Reyes-Izquierdo 2013).
- Ashwagandha for stress. Focus suffers when you're stressed. The KSM-66 trial reported lower stress scores and cortisol (Chandrasekhar 2012).
Caffeine, testing and price
3. The right amount of caffeine for you
Most mushroom coffees have 45 to 90 mg per cup. Less isn't automatically better: you want enough to feel alert, paired with something like L-theanine to take the edge off. The FDA cites 400 mg a day as an amount not generally associated with negative effects for most adults.
4. Third-party testing
Mushrooms can absorb heavy metals, and any dried crop can carry mold. Look for brands that test every batch in outside labs.
5. Price per serving, not per bag
Divide the price by the number of servings, and compare that against what's actually in each serving.
How popular brands compare
- JostArriba: every active listed. Lion's mane and reishi extracts, L-theanine 150 mg, coffee fruit 100 mg, KSM-66 200 mg. About 70 mg caffeine. $2.43 to $3.75 a serving.
- Four Sigmatic Focus: partial disclosure, 250 mg lion's mane and 250 mg chaga, plus rhodiola. 50 mg caffeine. About $1.90 (Mushroom Atlas).
- Everyday Dose: L-theanine 210 mg listed, mushrooms in a blend, contains collagen (not vegan). 45 mg caffeine. About $1.33 (Everyday Dose).
- RYZE: 2 g blend of six species, no per-species amounts. About 48 mg caffeine. $1.20 to $1.50 (Coffee Studies).
Checked November 2026. Formulas and prices change, so confirm on each brand's site.
Where JostArriba fits
JostArriba is built around this checklist. Every active ingredient is a standardized extract at greater than 10:1, it dissolves completely with no sludge, the mushrooms are fruiting body, and every batch is third-party tested for pathogens, mold, mycotoxins and heavy metals (FAQ). It pairs about 70 mg of naturally occurring caffeine with 150 mg of Suntheanine L-theanine. Its trade-offs: it costs more per cup than RYZE or Everyday Dose, and has more caffeine. If you need very low caffeine, one of those may suit you better.
Want the full head-to-head? Read JostArriba vs RYZE. Wondering about safety? See Mushroom coffee side effects.
Eightbillion makes JostArriba. Other brand names are trademarks of their owners.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.