Four Sigmatic
Four Sigmatic Focus
A polished, well-marketed Lion's Mane stack from a recognizable brand, but the formula leans on a multi-ingredient nootropic blend rather than raw mushroom potency, and no public third-party COA was surfaced in our review window.
Editorial conclusion
Verdict
A polished, well-marketed Lion's Mane stack from a recognizable brand, but the formula leans on a multi-ingredient nootropic blend rather than raw mushroom potency, and no public third-party COA was surfaced in our review window.
Best for: Readers already using Four Sigmatic mushroom coffee.
NootroScore methodology
Score breakdown
Each axis is scored 0 to 10. The overall NootroScore weights potency 40%, purity 25%, value 20%, and transparency 15%. See the full methodology.
- Potency Beta-glucan content as disclosed on each brand's published Certificate of Analysis, weighed against the label claim.
- 8/10
- Purity Heavy-metals and microbial test results, where the brand publishes a per-batch COA, evaluated against USP-grade thresholds.
- 8/10
- Value Cost per active milligram of beta-glucan, normalized across formats.
- 7/10
- Transparency Sourcing disclosure, public certificate-of-analysis access, and label accuracy.
- 7/10
Compared against 7 other Lion's Mane brands. See the full comparison.
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