75
Grade: B+
LOW RISK

Host Defense (Fungi Perfecti)

https://www.hostdefense.com Est. 1980 (46 years)

**** Host Defense (Fungi Perfecti) is a mushroom supplement manufacturer founded in 1980, specializing in immune support products derived from various fungi species. The company holds USDA Organic and GMP certifications and maintains a clean FDA record with no warning letters, recalls, or significant adverse event reports. However, the brand does not appear to publish third-party lab testing results or hold independent testing certifications. **

Red Flags

  • No third-party testing certifications found

Verified Strengths

  • Established brand — operating since 1980 (46 years)
  • Clean FDA record — no warnings, recalls, or significant adverse events
  • USDA Organic certified

Certifications

GMP CertifiedUSDA Organic

FDA Record

0
Warning Letters
0
Recalls
0
Adverse Reports

Clean record — no FDA warnings, recalls, or significant adverse events.

How We Calculated This Score

Every brand starts with a baseline score of 70/100.

Points added for: Third-party certifications (NSF +15, USP +15, Informed Sport +10), publishing lab results (+10), clean FDA record (+10), 10+ years in business (+10), organic certification (+5).

Points deducted for: FDA warning letters (-25), product recalls (-20), high adverse events (-15), no third-party testing (-15), proprietary blends (-10), no GMP (-10).

Score is capped at 0-100. Grade and risk level are derived from the final score.

All data sourced from FDA.gov, NSF.org, USP.org, and publicly available brand information. Last updated: 3/20/2026.