HomeLab Tests CertaPeptides, Retatrutide
Purity · passBatch · CP-2605-RT15Shop-provided sample

Retatrutide × CertaPeptides — Lab Test, June 2026

Tested · submitted by @Adrian 💬 Contributor
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
99.344%
Excellent purity only
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Test results

7 data points
Purity
99.344%
Endotoxins
<1 EU/vial
Heavy metals
Not tested
Stated qty
15 mg
Tested qty
20.14 mg
Qty match
134% of labeled · +34%
0label125%
Batch / Lot
CP-2605-RT15
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 Retatrutide from certapeptides.com, performed by Janoshik Labs on June 19, 2026. Reported purity: 99.344%. Net content: 20.14 mg against 15 mg labeled (134% of label). Tested content exceeds the labeled amount by 34%. Endotoxins: <1 EU/vial. Batch CP-2605-RT15. Sample source: shop-provided.

Certificate of analysis

Original document
JANOSHIK LABS · HPLC-UV/MSLAB-CP-2605-RT15
SAMPLE
Retatrutide
BATCH
CP-2605-RT15
CLIENT
CertaPeptides
DATE
JUN 19, 2026
METHOD
HPLC-UV/MS
COL.
C18 2.7μm
◆ AREA % = 99.344RT = 5.42 min
ACCEPT · MEETS SPEC
Issued by Janoshik Labs · Jun 19, 2026 · Batch CP-2605-RT15

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The 1024 other Retatrutide tests on Peptigrity range from 64.06% to 100.00%. This one sits at 99.34%.

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