MuscleTech vs Optimum Nutrition
Side-by-side trust score comparison based on certifications, FDA record, and transparency.
Optimum Nutrition scores 40 points higher (100 vs 60).
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| Feature | MuscleTech | Optimum Nutrition |
|---|---|---|
| Trust Score | 60/100 | 100/100 |
| Grade | B | A+ |
| Risk Level | MEDIUM | LOW |
| NSF Certified | ✗ | ✗ |
| USP Verified | ✗ | ✗ |
| Informed Sport | ✗ | ✓ |
| GMP Certified | ✓ | ✓ |
| Third-Party Tested | ✗ | ✓ |
| FDA Recalls | 0 | 0 |
| FDA Warning Letters | 0 | 0 |
| Adverse Events | 11 | 1 |
| Founded | 1995 | 1986 |
MuscleTech Certifications
GMP certification ensures manufacturing quality standards are met, but does not verify that product contents match the label through independent testing. Look for NSF, USP, or Informed Sport certifications for third-party verified products.
Optimum Nutrition Certifications
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 Record
MuscleTech
MuscleTech has a SupplementChecker trust score of 60/100, a Grade B, indicating a MEDIUM risk level. No third-party testing certifications were found. Consumers wondering "is MuscleTech third-party tested?" should note this absence, while also considering the brand's long history.
Full profile →Optimum Nutrition
Optimum Nutrition has a SupplementChecker.co trust score of 100/100, which is an A+ grade, indicating a low level of risk. Optimum Nutrition products are Informed Sport certified, meaning every batch is tested for banned substances. This is a positive signal for consumers concerned about product safety and label accuracy.
Full profile →How we compare: Both brands are scored using our transparent algorithm based on certifications, FDA records, and transparency signals. We don't accept payment to alter scores. Compare other brands →
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