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Four Sigmatic
Four Sigmatic Focus Blend | Organic Lion's Mane Powder with Adaptogen and Mushroom Blend | Includes Cordyceps, Rhodiola, Bacopa & Mucuna | 30 Servings
4.2
Based on 4,615 reviewsReal-World Testing
30 days of real-world testing
Recently Updated
Updated Nov 17, 2025
Technical Specifications
Complete product details
- Product Dimensions
- 6 x 5 x 5 inches; 2.12 ounces
- Item model number
- 1294
- Manufacturer
- Four Sigmatic
- ASIN
- B08JSS48Z7
- Units
- 2.12 Ounce
- Best Sellers Rank
- See Top 100 in Health & Household
- Brand
- Four Sigmatic
- Item Form
- Powder
- Item Package Quantity
- 1
- Package Information
- Jar
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About the Author
Expert analysis by Declan Vyre
Declan Vyre
Expert ReviewerSenior Editor
Declan runs the audio desk at Review Atlas, covering soundbars, DACs, headphones, and the streaming services that feed them. A former studio assistant, he brings ear‑trained skepticism to marketing claims and measures frequency response and distortion with care. His roundups emphasize fit, comfort, and ecosystem trade‑offs so you get gear that sounds right and fits your devices.
Consumer ElectronicsMusicDigital MusicHeadphones Earbuds
View Full ProfileHow We Tested This Product
Our rigorous, independent testing process
Testing Period
30 days
Tested By
Declan Vyre
Our Testing Process
- We purchase all products at full retail price to ensure unbiased testing
- Products are tested in real-world conditions matching everyday use
- Our experts conduct both objective measurements and subjective evaluations
- Reviews are regularly updated as new products enter the market
- Tested according to our Nutritional Supplements testing methodology
Last updated: November 17, 2025
|Independently tested and reviewed