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Certificates of Analysis.

Lot-matched documentation for every compound we ship.

Current lot certificates

AOD-9604BPC / TBBPC-157BPC-157CJC / GHRP-6CJC / IpamorelinCJC / IpamorelinDSIPEpithalonGHK-CuGHK-CuGLOWIGF-1 LR3IpamorelinKisspeptin-10KLOWKPVL-GlutathioneMOTS-cMT-1 / Melanotan-INAD+NAD+P-21PE-22-28PinealonProstamaxPT-141RetatrutideRetatrutideRetatrutideRetatrutideSelank Nasal SpraySemaglutideSemax Nasal SpraySermorelinSS-31TB-500TesamorelinTesamorelinTestagenThymalinThymosin Alpha-1TirzepatideTirzepatideTirzepatideVesugenVilon

Request a lot-matched COA

Every batch is released against a Certificate of Analysis documenting identity, purity, sterility, endotoxin, and heavy-metal results for that specific lot. Your lot number is printed on the vial label and on your packing slip — send it to us and we'll return the matching certificate, usually the same business day.

Request a COA

Or email john@primalpeptidesllc.com with your product and lot number.

What a COA covers
Identity
The compound is what the label says it is (mass spectrometry).
Purity
HPLC purity result for the lot — not a catalog-wide claim.
Sterility
No microbial growth in the finished, sealed product.
Endotoxins
Bacterial endotoxin level within specification.
Heavy metals
Lead, mercury, arsenic, cadmium within limits.
The testing standard

Seven layers of testing.
Every lot earns its label.

Most suppliers ship on a supplier's word. Every batch here clears seven independent analytical checkpoints before it's ever listed — and if any layer fails, that batch never reaches you.

Made in America. Verified at every step.
Pharmaceutical-grade active ingredient, synthesized and lyophilized in the USA, then tested before a single vial leaves the facility.
01
Identity — Mass Spec
High-resolution mass spectrometry confirms the molecular weight matches the target peptide exactly — proving the vial holds the compound on the label, not a lookalike.
02
Purity — HPLC
Reverse-phase HPLC quantifies purity to ≥99% and resolves related-substance impurities and truncated sequences — measured, not assumed.
03
Net Peptide Content
Content analysis verifies the vial actually holds the stated amount of active peptide, correcting for water and counter-ion mass.
04
Endotoxin — LAL
The Limulus Amebocyte Lysate assay screens for bacterial endotoxins to trace levels — the contaminants that quietly skew sensitive assays.
05
Sterility
Each lot is tested to confirm the lyophilized product is free of microbial contamination before it is sealed and released.
06
Heavy Metals — ICP-MS
Inductively-coupled plasma mass spec screens every lot for lead, arsenic, cadmium and mercury down to trace limits.
07
Independent COA
An independent third-party lab confirms the results, and every lot ships with a lot-matched Certificate of Analysis you can match to your vial.
Independent third-party verified — every lot, no exceptions.
The full Certificate of Analysis is available before you buy, not after.
See a Certificate of Analysis