Forumshangdong yixin · Shop talk · 8 replies
✓ Purity · passShop-provided sample

Glutathione × Instant Peptides — lab test, January 2026

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Tested · submitted by Peptigrity Team Member 02PEPTIGRITY TEAM
Sample source: shop-provided. The shop chose and sent this vial. The Trust Score counts it like any other published test; who sourced the vial is shown so you can weigh it yourself.How we weigh evidence →
HPLC Purity
99.534%
✓ Excellent purity only
Counts toward Instant Peptides's Trust Score until 15 Jan 2028
PeptideGlutathione
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Test results

7 data points
Purity
99.534%
Endotoxins
Not tested
Sterility
Not on file
Heavy metals
Not tested
Stated qty
1500 mg
Tested qty
1419.01 mg
Qty match
95% of labeled · -5%
Batch / Lot
2026-0236-A
Container
White Lyophilized Powder / Blue Cap
Tested by
Freedom DiagnosticsView profile →

Not on file for this certificate: endotoxins, sterility and heavy metals. A purity figure says nothing about those.

About this test

What’s in the vial

Label 1500 mg · Lab measured 1419.01 mg

95% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 354.8 mg using the measured mass, against 375 mg on the label — 5% less.

One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.

Independent HPLC purity analysis of Glutathione from Instant Peptides, performed by Freedom Diagnostics on January 15, 2026. Reported purity: 99.534%. Net content: 1419.01 mg against 1500 mg labeled (95% of label). Batch 2026-0236-A. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by Freedom Diagnostics · Jan 15, 2026 · Batch 2026-0236-A

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