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Purity · passBatch · CW-GT12001Shop-provided sample

Glutathione × crownwellresearch.com — Lab Test, February 2026

Tested · submitted by @Frank 👑 Legend
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
99.44%
Excellent purity only
↓ Download COA
Independently confirmed on the lab’s portal✓ Extra check

COA 2602110328 matches freedomdiagnosticstesting.com's public record. So this test doesn't rest on our review alone — the lab confirms it too.

Lookup codeCrow2602110328

Test results

7 data points
Purity
99.44%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
1200 mg
Tested qty
1156.96 mg
Qty match
96% of labeled · -4%
0label125%
Batch / Lot
CW-GT12001
COA number
2602110328
Container
White Crystalized 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

Independent HPLC purity analysis of Glutathione from crownwellresearch.com, performed by freedomdiagnosticstesting.com on February 14, 2026. Reported purity: 99.44%. Net content: 1156.96 mg against 1200 mg labeled (96% of label). Batch CW-GT12001. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Certificate of analysis for Glutathione from crownwellresearch.com, issued by freedomdiagnosticstesting.com
Issued by freedomdiagnosticstesting.com · Feb 14, 2026 · Batch CW-GT12001

Related lab tests

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The 87 other Glutathione tests on Peptigrity range from 96.10% to 99.99%. This one sits at 99.44%.

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