§ CERTIFICATE OF ANALYSIS · THIRD-PARTY HPLC · DEC-2025● VERIFIED SUBMISSION · PUBLIC RECORD
HomeLab Tests Nextday Sciences, Retatrutide
◆ Batch ID · 2025121220 Verified · Pass

Retatrutide × Nextday Sciences - Lab Test, December 2025

Tested · submitted by @Frank 👑 Legend
HPLC Purity
99.88%
Excellent
Independent verification available

Janoshik Labs publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.

Test results

7 data points
Purity
99.88%
Endotoxins
Not tested
Stated qty
20 mg
Tested qty
21.34 mg
Qty match
107% of labeled · +7%
Batch ID
2025121220
Container
Copper Cap
Tested by
Janoshik LabsView profile →
◆ Quantity verification
20 mg21.34 mg+7%

About this test

This independent HPLC lab test confirms Retatrutide 20mg from Nextday Sciences at 99.883% purity. The analysis was conducted by Janoshik Labs on December 19, 2025.

Retatrutide is a triple GIP/GLP-1/GCG receptor agonist researched for its effects on metabolic regulation, weight management, and glycemic control. A purity level of 99.883% indicates high-grade synthesis with minimal contamination.

The full certificate of analysis (Task #94557, Verification Key: FNK7X3RQBTWA) is available for download on this page

Certificate of analysis

Original document
Retatrutide Nextday Sciences COA
Issued by Janoshik Labs · Dec 19, 2025 · Batch 2025121220

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