VendorInvestigatorIndependent Testing Bureau
✓

Authentic report — verified

This certificate was issued by VendorInvestigator 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
2026-03-23
5-Hydroxy-DL-tryptophan (5-HTP) Heavy Metals / ICP-MS report by VendorInvestigator
Verification reference: 35743-5-Hydroxy-DL-tryptophan_(5-HTP)_YC28RFDQV5MB