3 independent third-party assays of Nad+ 500 Mg, covering 3 vendors.
Assay dates span 2025-07-16 to 2026-01-09.
Manufacturer recorded on the certificates: Panda Peptides, Peptira.
A certificate of analysis describes the lot that was submitted and nothing else. It is not a guarantee about a later batch, and purity is not identity — a sample can assay clean and still be the wrong compound, or the right compound at the wrong concentration. Vendors with no assay row below have not been tested here, which is not the same as having failed.
| Vendor | Assays | Median measured purity | Most recent |
|---|---|---|---|
| Panda Peptides | 1 | not reported | 2026-01-09 |
| PeptideCritic.com Best Sources Available | 1 | not reported | 2026-01-08 |
| Peptira | 1 | not reported | 2025-07-16 |
Vendors assayed: Panda Peptides, PeptideCritic.com Best Sources Available, Peptira.