Xymogen

https://www.xymogen.com Est. 2003 (23 years)

Xymogen is a supplement brand founded in 2003, known for offering vitamins, probiotics, and specialty products. The brand holds certifications such as NSF Certified for Sport and GMP Certified, but has also received an FDA warning letter and has one product recall on record. Additionally, Xymogen has 27 FDA adverse event reports, which may raise concerns for some consumers.

Red Flags

⚠Received 1 FDA warning letter(s)
⚠1 product recall(s) on record
⚠Elevated FDA adverse event reports (27)

Verified Strengths

✓NSF Certified for Sport — banned substance tested
✓Established brand — operating since 2003 (23 years)

Certifications

NSF CertifiedGMP CertifiedThird-Party Tested

FDA Record

Warning Letters

Recalls

Adverse Reports

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.