peptest
Overhead view of a clean-room bench: aligned peptide vials, a folded certificate of analysis, and a gloved hand holding a pipette
FACILITY.FLOOR · BATCH INTAKE, 07:40

ABOUT.PEPTEST

Built for people who verify before they buy

Most peptide storefronts ask for trust. We assume we will not get it — so every batch leaves a paper trail instead: independent HPLC, mass-spec identity, a published certificate, and cold-chain logistics to your bench.

The catalog spans nine research categories, held to one standard of purity. If a batch does not clear it, it does not ship. There is no second tier.

“Proof, not promises.”

THE ONLY MARKETING LINE WE ALLOW OURSELVES

WHY.PEPTEST

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Premium purity

GMP-certified manufacture. No fillers, no shortcuts.

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Tested every batch

Independent mass spec + HPLC, certificate included.

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Free shipping

Discreet, temperature-controlled, on every order.

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Fast fulfillment

Processed within 24 hours; most arrive in 3–5 business days.

TESTING.PROTOCOL

From synthesis to certificate

A printed certificate of analysis with a blue highlight across one verified result row
SPECIMEN.COA · MASS SPEC + HPLC

A certificate like this one is linked to every vial we ship. Ask us for the COA behind any batch number — it is on file.

  1. 01

    Synthesis

    Lyophilized peptides manufactured in GMP-certified facilities. No fillers, no shortcuts.

  2. 02

    Independent HPLC

    Samples from every batch travel to accredited third-party labs — never graded in-house.

  3. 03

    Mass-spec confirmation

    Identity confirmed by mass spectrometry before a single vial is released.

  4. 04

    Certificate published

    The COA is filed, linked to the batch number, and ships in the box.

FIELD.NOTES

“I stopped comparing suppliers after the first COA arrived stapled to the packing slip.”
R.N. — university research assistant
“They publish the chromatogram. Everyone else publishes an adjective.”
Dr. E.M. — analytical chemist
“Fulfillment in a day, documentation in the box, numbers that match. That is the whole review.”
S.B. — longevity clinic researcher

All products are intended for laboratory research only — not for human consumption or medical use. Read the full disclaimer in our terms.

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