Peptides, proven to the molecule.

An independent, ISO/IEC 17025-accredited U.S. laboratory confirms the exact molecule by mass spectrometry, verifies purity at ≥99%, and screens for endotoxin, microbial contamination and heavy metals. An independent, ISO/IEC 17025-accredited U.S. laboratory confirms the molecule by mass spectrometry, verifies ≥99% purity, and screens for endotoxin, microbes and heavy metals.

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Confirmed identity

LC-MS mass match on every lot

≥ 99% pure

Plus endotoxin, microbial and metals screens

Free 2-day shipping

Every order · FedEx tracked · continental US

2-day tracked shipping
99%+ purity tested
Ships from California
U.S. lab tested
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.

1 / 7

10 mg ≥99% pure Lyophilized

Copper Peptides

Price
$51.99
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100 mg ≥99% pure Lyophilized

Mitochondrial

Price
$91.99
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10 mg ≥99% pure Lyophilized

GH Secretagogues

Price
$68.99
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10 mg ≥99% pure Lyophilized

GH Secretagogues

Price
$85.99
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10 mg ≥99% pure Lyophilized

Cytoprotective

Price
$91.99
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Browse the full catalog

Lab quality that
actually matters.

Most vendors publish the purity number their own supplier gave them. Every row below is measured by an independent lab before the lot is cleared to ship.

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/IEC 17025-accredited facility, runs identity, purity, endotoxin, microbial and heavy-metal assays on every batch. It is a second, independent pass over the manufacturer’s own results, and if the two disagree the lot never reaches the catalog.

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.

What the testing covers, what the certificate shows, and how the material ships. Short answers here; the full FAQ goes further.

See all FAQs →
Confirm you’re a qualified researcher (21+) and the catalog and lot-specific pricing unlock. Browse the catalog, add to cart, and check out. You’ll confirm the research-use acknowledgment as you order, and every order includes that lot’s Certificate of Analysis.
No. You can order as a guest. You’ll confirm you’re a qualified researcher (21+) before you shop, and we document research-use sales against that. Creating a free account is optional: it keeps your COAs and order history in one place, and new customers get 25% off their first order.
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 liquid preparations, 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 free on every order to the continental US. 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.
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, with no return required. Shipping damage is replaced 1:1 from the same batch.