✓ Purity · passBatch · DPS-4972754Shop-provided sample
L-Glutathione × Direct Peptides — Lab Test, March 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
99.25%
✓ Excellent purity only
COA on file — not portal-verified
This lab doesn't publish a public lookup, so we can't confirm the certificate against the lab's own record. The document was reviewed before publication, but it rests on our review alone.
What portal verification means →Test results
7 data points
Purity
99.25%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
500 mg
Tested qty
500.21 mg
Qty match
100% of labeled · +0%
0label125%
Batch / Lot
DPS-4972754
Container
White Lyophilized Powder
Tested by
Horizon AnalyticalView 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 L-Glutathione from directpeptides.com, performed by Horizon Analytical on March 6, 2026. Reported purity: 99.25%. Net content: 500.21 mg against 500 mg labeled (100% of label). Batch DPS-4972754. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Original document
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