Grade: D

HIGH RISK

Xymogen

Item: Xymogen
Rating: 45
Author: SupplementChecker

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

Xymogen has a SupplementChecker.com trust score of 45/100, which is a Grade D, indicating a HIGH risk level. Xymogen claims to offer third-party tested supplements and is NSF Certified for Sport, meaning their products are tested for banned substances. However, the brand has received an FDA warning letter and has a product recall on record.

Xymogen Trust Summary

Trust Score: 45/100 (Below Average)
Grade: D
Risk Level: HIGH
Third-Party Tested: Yes (NSF)
FDA Recalls: 1
Adverse Events: 9
Years in Business: 23 years
GMP Certified: Yes

Xymogen has a trust score of 45/100 (Below Average). The brand is third-party tested by NSF, has 1 recall on record and 9 adverse event reports and has been in business for 23 years.

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Red Flags

⚠Received 1 FDA warning letter(s)
⚠1 product recall(s) on record

Verified Strengths

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

Certifications

NSF CertifiedGMP CertifiedThird-Party Tested

Third-party testing means an independent laboratory has verified this product's contents, purity, and potency match what's on the label.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

Is Xymogen Third-Party Tested?

Yes — Xymogen is NSF-certified. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims. They also maintain GMP (Good Manufacturing Practice) certification.

Is Xymogen a Good Brand?

Xymogen scores 45/100 (D) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Note: 1 product recall(s) are on record, which impacts the overall trust assessment. The brand holds third-party certifications (NSF-certified), which is a strong quality indicator.

About Xymogen

Xymogen is a US-based supplement company founded in 2003, making them an established brand with 23 years in business. They operate as an independent company. Xymogen offers a range of nutritional supplements.

Product Specialization

Xymogen specializes in vitamins, probiotics, and specialty supplements. They are known for their formulations targeting specific health needs.

Testing & Certifications Explained

Xymogen is NSF Certified for Sport. This certification means that their products have been tested for banned substances, ensuring that athletes and other consumers can use them without risking a positive drug test. However, it does not guarantee the quality or safety of other ingredients.

How Xymogen Compares

Compared to competitors like Thorne Research (trust score 88/100, NSF Certified for Sport, publishes lab results) and Pure Encapsulations (trust score 72/100, NSF Certified for Sport), Xymogen's trust score is significantly lower. These competitors often have more comprehensive testing and transparency practices. Another competitor, Metagenics (trust score 58/100, GMP certified), has a slightly higher trust score, but also lacks transparency in lab results.

Buying Guidance

Given Xymogen's trust score and FDA record, consumers should exercise caution. Purchase Xymogen products from reputable retailers and carefully examine product labels. Consider consulting with a healthcare professional before using Xymogen supplements.

Frequently Asked Questions

Has Xymogen had any recalls?

Yes — as of 2026, Xymogen has 1 FDA product recall(s) on record. There are also 9 adverse event reports filed with the FDA. Xymogen received a trust score of 45/100 from SupplementChecker.

Are Xymogen supplements third-party tested?

Yes — Xymogen supplements are third-party tested. They hold the following certifications: NSF Certified for Sport. Third-party testing means an independent lab has verified the product's contents, purity, and potency match the label claims.

Is Xymogen safe?

Xymogen received a trust score of 45/100 (grade: D, risk level: HIGH). This score is calculated from FDA records, third-party certifications, adverse event reports, and transparency practices. Note: 1 product recall(s) are on record.

Is Xymogen a good brand?

Xymogen scores 45/100 (grade: D) — this is below average. We recommend looking for brands with third-party certifications like NSF or USP. They hold third-party certifications (NSF-certified), which is a strong indicator of product quality. Note: 1 recall(s) are on record.

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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 regulatory 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, Health Canada (LNHPD / recalls-rappels), NSF.org, USP.org, and publicly available brand information. Last updated: 4/9/2026.

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