Independent lot testing

Peptides, proven to the molecule.

ISO 17025-verified peptides, verified by an independent U.S. lab — every lot tested to ISO 17025 standards for identity and purity, with the Certificate of Analysis on file for every order. ISO 17025-verified peptides. Independently U.S. lab-tested. COA with every order.

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≥ 99% pure

HPLC + mass-spec on every lot

Independently tested

ISO/IEC 17025 accredited lab

Same-day shipping

Order by 5pm ET · California warehouse

Research cited from peer-reviewed sources

Featured peptides

Our research catalog

The peptides researchers reorder most — every lot is identity- and purity-confirmed twice, the second pass by an independent, US-based ISO/IEC 17025 lab, then traced from synthesis to the vial in your hand.

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Lab quality that
actually matters.

Other vendors
ISO 17025–accredited 3rd-party assay on every batch
Self-reported, rarely audited
≥99% HPLC purity verified per lot
Often unverified
LC-MS identity + mass-match to reference
Rarely shown
Endotoxin LAL ≤ 1 EU/mg + microbial (PCR)
Rare
ISO 17025-tested · fully traceable
Often unregulated, untraceable
Quality control

Independently tested, every batch.

Our US-based partner lab, an ISO 17025–accredited facility, runs identity, purity, endotoxin, microbial, and contaminant assays on every batch. This is a secondary screening aimed at ensuring we offer the highest-quality research product.

ISO 17025 · 3rd-party
peptriva ISO 17025 · 3rd-party verified
Tests7 / lot
PurityPer lot
Lab3rd-party
COAs100%
What every COA includes Lot-by-lot
IdentificationLC-MS m/z mass match
spec match
REF
Purity (HPLC)area-% on every lot
reported per lot
REF
EndotoxinLAL · USP <85>
≤ 1.0 EU/mg
REF
Net contentper vial
confirmed
REF
Microbial screenPCR · microbial DNA
none detected
REF
Heavy metalsPb · As · Cd · Hg
per ICH Q3D
REF
Acetate counter-ionw/w · per lot
reported per lot
REF
Methods & standards Reference
RP-HPLC purity220 nm · isocratic
USP <621>
REF
Mass identityhigh-resolution LC-MS · ESI+
USP <736>
REF
Endotoxin (LAL)kinetic chromogenic
USP <85>
REF
Microbial screenPCR · rapid, validated
validated method
REF
Heavy metalsICP-MS · ICH Q3D
USP <232>
REF
Lot traceability Per lot
Synthesis datecontract manufacturing partner
Per lot
LOG
QC release date3rd-party ISO 17025 lab
Per lot
LOG
QC director sign-offsignature on file
verified
SIG
Storage−20 °C, sealed dark
≤ 24 mo
SPEC
Every lot signed by an ISO 17025 QC director
Catalog
FAQ

Common questions, answered.

See all FAQs →
Create a free account, confirm your email, and the catalog and lot-specific pricing unlock. Browse by research goal, add to cart, and check out — every order includes that lot’s Certificate of Analysis.
Yes. We document research-use sales, so you’ll create a free account and confirm you’re a qualified researcher (21+) before checkout. It takes about a minute.
Every product is an ISO 17025-verified reference compound for in-vitro and laboratory research only — not for human or veterinary use. Handle with standard lab PPE. They are not drugs, supplements, or cosmetics.
No. These are ISO 17025-verified reference compounds, not approved by the FDA for therapeutic, diagnostic, or veterinary use. We’re upfront about the regulatory category we sit in — and the ones we don’t.
Every lot is third-party tested by an independent, U.S.-based ISO 17025–accredited lab for identity (LC-MS) and purity (HPLC ≥99%). The full COA travels with every order. Deeper method detail is on our Quality page.
These are lyophilized research powders in sealed, lot-coded vials — not sterile-filled injectables, so we don’t make a sterility claim. What every lot is screened for is endotoxin (LAL) and microbial contamination (PCR-based) before release. Your batch’s results are reported on the COA in your account.
Orders ship from our U.S. warehouse with tracked FedEx 2-day delivery. Orders placed before 5pm ET dispatch the same business day. We ship within the U.S. only.
Standard tracked shipping is a $14.99 flat rate, and it’s free on orders over $200. You’ll get a tracking link by email the moment your order leaves our facility.
You’ll receive an email with a tracking link as soon as your package ships. Most U.S. orders arrive in 1–2 business days.
A recurring order ships on a schedule you set, with a standing-order discount and free shipping; pause or cancel anytime from your dashboard. One-time orders ship once, with no schedule.
Send a photo of the damaged packaging and the lot number within 7 days of delivery and we’ll re-ship the affected vials free of charge — no return required. Shipping damage is replaced 1:1 from the same batch.