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Purity · pass✓ Lab-verifiedShop-provided sample

Glutathione × peptidefoundry.com — Lab Test, August 2026

LotFO498look this batch up across every shop →
Tested · submitted by Peptigrity Team Member 01PEPTIGRITY TEAM
Filed by Peptigrity Team Member 01 ·
Sample source: shop-provided. The shop chose and sent this vial. Samples bought at retail by a member carry more weight.How we weigh evidence →
HPLC Purity
99.08%
Excellent purity only
↓ Download COA
Independently confirmed on the lab’s portal✓ Extra check

COA 2608250472 matches freedomdiagnosticstesting.com's public record. So this test doesn't rest on our review alone — the lab confirms it too.

Lookup codePept2608250472

Test results

8 data points
Purity
99.08%
Endotoxins
Not Detected, ≤0.05 EU/mL
Heavy metals
Not tested
Stated qty
1500 mg
Tested qty
1458.74 mg
Qty match
97% of labeled · -3%
Batch / Lot
FO498
COA number
2608250472
Container
White Lyophilized Powder
Tested by

This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.

About this test

What’s in the vial

Label 1500 mg · Lab measured 1458.74 mg

97% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 364.7 mg using the measured mass, against 375 mg on the label — 3% 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.

Verification trail
Report number2608250472
Portal lookup✓ Lab-verified
Checked1 Sept 2026date taken from the record, not from a logged check
Checked byPeptigrity staff, against the lab's portal
PDF vs portalfreedomdiagnosticstesting.com's portal shows validity only
WeightCounts as one lab test

Independent HPLC purity analysis of Glutathione from peptidefoundry.com, performed by freedomdiagnosticstesting.com on August 29, 2026. Reported purity: 99.08%. Net content: 1458.74 mg against 1500 mg labeled (97% of label). Endotoxins: Not Detected, ≤0.05 EU/mL. Batch FO498. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by freedomdiagnosticstesting.com · Aug 29, 2026 · Batch FO498

Related lab tests

8 tests

The 128 other Glutathione tests on Peptigrity range from 96.10% to 100.00%. This one sits at 99.08%.

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