Retatrutide — Top Seller
From $99 · COA Included · Ships Today
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Reta: 9 left · Sema: 14 left · Tirz: 26 left— all ship today —Secure your batch →
Research Peptides

99% Verified Purity.
Or We Reship Free.

Every batch third-party tested. COA included.
Ships same day.

For Research Use Only · Semaglutide · Tirzepatide · Retatrutide — All In Stock · USA Shipping
HPLC Verified
HPLC Verified
Purity
99% Purity
COA
COA Per Batch
USA
USA Shipping
4,800+
Researchers Served
99.4%
Avg. Purity
4.9 ★
Verified Rating
48hr
Avg. Delivery
Peptides
GLP Series

Precision GLP peptides. Made in the USA.

Only 14 left GLPx-SEM
GLP-1 Agonist
Semaglutide
First-generation GLP-1 receptor agonist. Most studied GLP in the class.
99.5% HPLC · Sequence Verified
5mg10mg20mg
from$79/ vial
5mg $79 · 10mg $109 · 20mg $149
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Only 26 left GLPx-TRZ
GLP-1 / GIP Dual Agonist
Tirzepatide
Dual receptor agonist targeting GLP-1 and GIP pathways simultaneously.
99.6% HPLC · Sequence Verified
10mg20mg30mg
from$89/ vial
10mg $89 · 20mg $119 · 30mg $159
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the difference
No shortcuts. No compromises.
01
Third-Party Tested
Every batch sent to an independent ISO-certified analytical lab before release. Not self-reported. Independently verified.
02
Sequence Verified
Amino acid sequence confirmed via mass spectrometry. Purity alone doesn't tell the whole story.
03
Traceable Batches
Batch number on every order. COA publicly accessible at glpxlabs.com/coa. Full chain of custody.
the lab results
This is the exact batch currently shipping — GLPx-RET-2025-011
Verified by independent ISO-certified lab · March 2025
Certificate of Analysis — GLPx-RET-2025-011
CompoundRetatrutide
Purity (HPLC)99.5%
Identity TestPASS — Confirmed
Molecular Weight4522.14 g/mol
AppearanceWhite lyophilized powder
Testing LabJanoshik Labs
Overall StatusAPPROVED ✓
Download Sample COA PDF →

View the exact COA for your order.

Most competitors hide their lab results. We make the COA the centerpiece — because if you can't verify the data, the compound isn't worth buying.

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Common Questions
Straight answers.
What happens if purity is below spec?
We reship at no cost. If your COA comes in below stated purity, a replacement ships within 24 hours. No questions asked.
How do I verify the batch COA?
Go to glpxlabs.com/coa, enter your batch number, and pull the full third-party lab documentation at any time.
How quickly does it ship?
Orders placed before 3PM EST ship same day. US, Canada, and Mexico only. Discreet, unmarked packaging. Tracking provided.
Is this for human use?
No. GLPx compounds are sold strictly for in-vitro research purposes only. Not for human consumption.
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Third-party tested. COA included. Purity guaranteed or reshipped free.

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