Independent COA verification
Look up a batch. See every test on that lot.
Enter a lot/batch number, a vendor, or upload a COA. We show the vendor's own certificate and every independent test the community has submitted for the same lot.
Batch / lot #VendorUpload COA
Verify/batch/TZ-240628-A
Verified
3 independent tests match the label on this lot
purity (avg)
99.0%
Compound
Tirzepatide 10 mg
Vendor
Aminos PeptidesClaimed ✓
Lot / batch #
TZ-240628-A
Source lab (vendor COA)
Janoshik Analytical
Original vendor COAPDF · 240628
[ certificate document ]
Who else tested this lot
4 independent submissions for batch TZ-240628-A — only peps.news shows you this.
Lab
Purity
Method
Submitted by
Status
Janoshik Analytical
Jun 28, 2026
99.2%
HPLC-MS
Vendor-submitted
Verified ✓
Colmaric Analyticals
Jul 01, 2026
98.9%
HPLC
Community member
Verified ✓
MZ BioLabs
Jul 02, 2026
99.0%
MS
Community member
Verified ✓
Home test kit
Jul 03, 2026
~97%
Colorimetric
User-reported
⚠ User-reported
Verified = test from a recognized lab. User-reported = self-submitted, not independently confirmed. We never remove a test — we label its trust tier.