Public library
Every public Certificate of Analysis we've issued.
Independent third-party results — purity, identity, sterility, endotoxin, heavy metals — published exactly as measured. Search by compound, lot, brand, or accession number. Every certificate has a permanent link you can cite.
2 certificates
GSA-2026-035379
Glutathione
View analytical results
- Issued
- Nov 5, 2026
GSA-2026-035917
Glutathione
View analytical results
- Lot
- 1946061
- Issued
- Nov 4, 2026
Gold Standard Analytics is an independent laboratory. We report what we measure on the sample as received; we do not manufacture, sell, or endorse any product, and a certificate here is not a claim about anything beyond that sample. Customers may keep a certificate private — those stay verifiable by accession at COA lookup with the key printed on the document.