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PuriLab Analytical
COA/RT-2026-033Verified
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Certificate of Analysis

PuriLab Analytical

Retatrutide 20 mg

RT-2026-033Lot NOT PROVIDEDAnalyzed October 28, 2026
Retatrutide 20 mg vial as received

Timeline

Ordered
October 20, 2026
Received
October 22, 2026
Analyzed
October 28, 2026

Sample

Name
Retatrutide 20 mg
Expected
Retatrutide
Amount
1 vial, lyophilized powder

Testing

Client
HealLabs
Test type
Content & purity
Method
HPLC-UV
Content, how much is in it
Not detected
Label claim: 20 mg
Identity, what it is
Not detected
No retatrutide detected in either of two injections

Chromatogram

HPLC-UV

mAU05010016182022Retention time (min), 15 to 23 min3.73
3.73 min, Unidentified component
First injection (1 µL)
Retatrutide reference, same method

Analyst Comments

White lyophilized powder, white-cap vial, received sealed. The sample was injected twice, the second time at ten times the normal load, and retatrutide was not found in either injection (detection limit about 0.02 mg per vial). The dashed traces show the first injection and a retatrutide reference run on the same method, marking where retatrutide elutes. The only significant peak is an early eluting unidentified UV-absorbing component.

Analyst Signature

Max Barrett
Lab Director, PuriLab Analytical
Analysis date: October 28, 2026

Verification Code

RT-OUK9-GYZH
Verify at purilab.org/verify/RT-OUK9-GYZH

Scan to Verify

RT-OUK9-GYZH

Results apply solely to the sample as received and are not representative of any larger lot, batch, or production run. Findings are limited to the analytes stated above. PuriLab Analytical is an independent testing laboratory, is not CLIA certified or ISO 17025 accredited, does not sell or distribute any substance, and makes no representation as to the safety, legality, or fitness of any material for any use.

PuriLab Analyticaladmin@purilab.org
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