VendorInvestigateIndependent Testing Bureau

Authentic report — verified

This certificate was issued by VendorInvestigate and matches our records. Reference ID confirmed.

Product
5-Hydroxy-DL-tryptophan (5-HTP)
Specification
99.0% · 25g
Report Type
Heavy Metals / ICP-MS
Catalogue
GL-SP-0011
Issued
2026-03-16
5-Hydroxy-DL-tryptophan (5-HTP) Heavy Metals / ICP-MS report by VendorInvestigate
Verification reference: 98797-5-Hydroxy-DL-tryptophan_(5-HTP)_ZV7CRY52X8Y8