COA verification and testing documentation visual

COA Verification

Analytical reports, with source context.

Review historical sample reports and source-linked publications. Check what was tested, who issued the document, and whether it applies to the specific lot offered for your order.

Public COA Library

Browse historical sample reports and source-linked references by product, sample specification, document number, or publisher.

FirestineLab reports

79

COA records

185

Report access

Direct PDF

Explore our analytical report library for sample identity, test methods, and reported results. Each report documents the sample tested. Contact our team to confirm the matching documentation and supply lot for your order.

FirestineLab directory checked: . View laboratory source

Showing 1-4 of 4 reports

LeewayGo COA reports with laboratory sources, document references and original PDFs
Product / sampleDocument referenceLaboratory / sourceAnalysisReport / inquiry

Glutathione

Sample specification: 600mg

Client: LeewayGo

Source-linked reference report

Report number

FSL-260820-030

Cited source reference: 6589122

Current supply lot: not established by this listing.

Laboratory / source

FirestineLab

Lab directory
Purity
See original PDF
Test date
See original PDF

Glutathione

Sample specification: 1500mg

Client: LeewayGo

Source-linked reference report

Report number

FSL-260820-029

Cited source reference: 6409312

Current supply lot: not established by this listing.

Laboratory / source

FirestineLab

Lab directory
Purity
See original PDF
Test date
See original PDF

Glutathione 1500mg

Client: Peptide Mom

Historical sample report

Lot / reference

6409312

Current supply lot: not established by this listing.

Laboratory / source

Document archive

Laboratory details in original PDF

Purity
99.71%
Test date
May 12, 2026

Glutathione 600mg

Client: Peptide Mom

Historical sample report

Lot / reference

6589122

Current supply lot: not established by this listing.

Laboratory / source

Document archive

Laboratory details in original PDF

Purity
99.74%
Test date
Apr 12, 2026

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COA Library | LeewayGo Peptide