Glutathione × Double R Labs — lab test, May 2026
COA KVR-2026-D09DB2 matches Kovera Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
D0RKHXVTest results
Not on file for this certificate: sterility. A purity figure says nothing about that.
About this test
Label 1500 mg · Lab measured 1550.41 mg
103% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 387.6 mg using the measured mass, against 375 mg on the label — 3% more.
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.
| Report number | KVR-2026-D09DB2 |
|---|---|
| Portal lookup | ✓ Lab-verified |
| Checked | 28 Jul 2026date taken from the record, not from a logged check |
| Checked by | Peptigrity staff, against the lab's portal |
| PDF vs portal | Kovera Labs's portal shows validity only |
| Weight | Counts as one lab test |
Independent HPLC purity analysis of Glutathione from Double R Labs, performed by Kovera Labs on May 24, 2026. Reported purity: 99.19%. Net content: 1550.41 mg against 1500 mg labeled (103% of label). Endotoxins: <0.5 EU/mL. Heavy metals: Arsenic, Cadmium, Lead, Mercury all Negative. Batch DRL-05-GTT1500. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
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