§ CERTIFICATE OF ANALYSIS · THIRD-PARTY HPLC · JAN-2026● VERIFIED SUBMISSION · PUBLIC RECORD

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◆ Batch ID · N/A✓ Verified · Pass

DSIP (Delta Sleep-inducing Peptide) × Penguin Peptides - Lab Test, January 2026

Tested Wednesday, January 21, 2026 · submitted by @Frank 👑 Legend

HPLC Purity

99.03%

✓ Excellent

PeptideDSIP (Delta Sleep-inducing Peptide)

BrandPenguin Peptides

LabJanoshik Labs

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Test results

6 data points

Purity

99.03%

Endotoxins

Not tested

Stated qty

5 mg

Tested qty

4.46 mg

Qty match

89% of labeled · -11%

Batch ID

N/A

Tested by

Janoshik LabsView profile →

◆ Quantity verification

5 mg→4.46 mg-11%

About this test

This independent lab test confirms DSIP 5mg from Penguin Peptides at 99.028% purity with an actual measured content of 4.46 mg. The analysis was conducted by Janoshik Labs on January 22, 2026. The lab noted the sample was tested twice.

DSIP (Delta Sleep-inducing Peptide) is a neuropeptide researched for its role in sleep regulation, stress modulation, and neuroendocrine function. A purity level of 99.028% indicates high-grade synthesis with minimal impurities.

The full certificate of analysis is available for download on this page.