The Zolvir Standard
Most suppliers will ship you a vial. Zolvir ships you a paper trail. Every batch moves through a four-gate release process (sourcing, identity & purity, documentation, and chain of custody) and we publish the result of all four. Below is exactly how that works, laid out without abstraction.
Synthesis partners are audited on identity, peptide-bond chemistry, and lyophilization process before a single vial enters our supply chain. We don't white-label.
Every lot is verified by reverse-phase HPLC and mass spectrometry against the published sequence. Purity reported to the second decimal place, identity confirmed by mass.
A signed Freedom Diagnostics Certificate of Analysis is published in full on the Lab Vault for every released batch. No paywalls, no redactions, no asterisks.
Synthesis origin, lot number, courier handoff, and storage temperature are logged from manufacture to delivery. The full trail is on file for every lot.
Bulk peptide is synthesized to the published sequence, lyophilized into single-use vials, and lot-stamped before release from the manufacturing partner.
A randomized sample from every lot goes to Freedom Diagnostics for reverse-phase HPLC (purity), mass spectrometry (identity), and endotoxin screening (LAL).
The signed Certificate of Analysis is appended to the lot record and published on the Lab Vault as the lot clears testing. Failing lots are destroyed.
Cleared lots are released to our climate-controlled fulfillment center, packed in tamper-evident mailers, and dispatched with the COA on file in the Lab Vault.
The COA isn’t a marketing artifact.
It’s the receipt.
Most supplier sites bury the COA behind a contact form, ship a watermarked PDF, or only publish "summary" results. We publish the signed Freedom Diagnostics report in full ( test date, lot number, purity %, mass-spec identity confirmation, and endotoxin result ) on the Lab Vault. If a lot doesn’t have a COA, it doesn’t ship.
Six checkpoints follow a vial from the moment it’s lyophilized to the moment it lands on your bench. The chain is recorded against the same lot number that appears on the COA, so your QA team can reconcile any vial in our catalog against the test results it was released under.
Standard, applied
Pick a compound.
Read its COA before you check out.
The Standard isn’t marketing. It’s the floor. Every vial in the catalogue cleared the four gates above before it was listed.