Independent Testing. Total Transparency.
Every batch of peptides is independently tested by
to verify purity and consistency. We publish what we test—no filters, no fluff.
How We Ensure Quality
Our testing process is built to meet the strict expectations of serious researchers. Here’s how each peptide is handled:
Sourcing
Raw materials are acquired from GMP-aligned labs with strict oversight and documentation.
Quarantine
Each batch is held in quarantine until third-party verification is complete.
Third-Party Testing
evaluates each batch for purity (targeting >98%) and accurate quantification.
Release & COA
Once verified, the batch is labeled, logged, and published with a downloadable COA.
Batch-Tested Peptides with COAs
Independently tested in the USA by BioRegen
TB-500
5mg – TB500-0725Glow Blend
GLOW-0725CJC-1295 no DAC
CJC-0725AOD-9604
5mg – AOD-0725MOTS-C
10mg – MOTS-0725Ipamorelin
10mg – IPA-0725Semaglutide
26.7mg – SEMA-0725Tirzepatide
24.3mg – TIRZ-0725Retatrutide
22.8mg – RETAT-0725Why Testing Matters
In research, confidence starts with the compound. If you're unsure about what you're working with, your results are automatically on shaky ground. That's why every batch we carry is independently verified before it reaches your bench.
PeptiSearch partners with
to test each lot for purity, identity, and consistency. These third-party results—often above 99%—are posted right on our site, no filters, no marketing spin.
We don’t just claim quality. We prove it. Every COA is backed by real analysis, so your work is built on reproducible, well-characterized inputs.
If you're serious about research, you need reliable peptides. Our commitment to transparency ensures that what’s on the label is exactly what’s in the vial—no guesswork, no surprises.