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Purity · passBatch · ULP-54961Shop-provided sample

Glutathione × umbrellalabs.is — 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
99.8%
Excellent purity only
↓ Download COA
Independent verification available

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Test results

6 data points
Purity
99.8%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
200 mg
Tested qty
197 mg
Qty match
99% of labeled · -1%
0label125%
Batch / Lot
ULP-54961
COA number
V260209-8 004
Tested by
Vanguard LaboratoryView 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 umbrellalabs.is, performed by Vanguard Laboratory on February 27, 2026. Reported purity: 99.8%. Net content: 197 mg against 200 mg labeled (99% of label). Batch ULP-54961. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Certificate of analysis for Glutathione from umbrellalabs.is, issued by Vanguard Laboratory
Issued by Vanguard Laboratory · Feb 27, 2026 · Batch ULP-54961

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The 93 other Glutathione tests on Peptigrity range from 96.10% to 99.99%. This one sits at 99.80%.

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