◆ Purity · passBatch · POL-GLU600-2Shop-provided sample
Glutathione × polarispeptides.com — Lab Test, January 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
97.89%
◆ Research grade purity only
Independently confirmed on the lab’s portal✓ Extra check
COA #99749 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
Lookup code
Q1MQW6RVP9K3Look it up on Janoshik Labs ↗Checked Jan 21, 2026
Test results
6 data points
Purity
97.89%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
600 mg
Tested qty
675.4 mg
Qty match
113% of labeled · +13%
0label125%
Batch / Lot
POL-GLU600-2
COA number
#99749
Tested by
Janoshik LabsView profile →
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 polarispeptides.com, performed by Janoshik Labs on January 21, 2026. Reported purity: 97.89%. Net content: 675.4 mg against 600 mg labeled (113% of label). Tested content exceeds the labeled amount by 13%. Batch POL-GLU600-2. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Original document
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