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Quality & testing

Purity you can document, not just claim

NUPEPS Peptides exists to give researchers reference-grade compounds backed by verifiable analytics — tested, documented and published, so your results start with material you can trust.

A researcher holding a NUPEPS Peptides vial, with labelled vials on the bench
≥99% verified purity
≥99%

Verified purity on qualifying lots

100%

Lots tested by HPLC + MS

24 hr

Dispatch on confirmed orders

3rd-party

Independent lab documentation

HPLC purity analysis

Reverse-phase high-performance liquid chromatography quantifies purity for every lot, documented to ≥99% on qualifying batches.

Mass spectrometry identity

Each compound is confirmed by mass spectrometry so the molecular identity in the vial matches the sequence on the label.

Published COAs

Certificates of analysis are published as issued by the testing laboratory and can be reviewed before purchase — no anonymous, undocumented material.

Cold-chain logistics

Lyophilized compounds are handled and shipped with temperature-considerate, discreet packaging to preserve stability in transit.

From synthesis to your bench

A four-stage chain of custody keeps every vial accountable to its certificate of analysis.

01

Synthesis & sourcing

Compounds are produced to defined specifications and received into a controlled, documented intake process.

02

Independent testing

Every lot is analyzed by HPLC and mass spectrometry. Material that does not meet specification never reaches the catalog.

03

Documentation

Results are compiled into a certificate of analysis and published in the COA library.

04

Storage & fulfillment

Verified lots are stored under controlled conditions and dispatched within 24 hours of a confirmed order.

Certificates of analysis

Certificates, published as issued

A certificate of analysis documents the tests an independent laboratory performed — identity, purity and screening results. We publish the reports themselves so you can review the methods and results for the sample tested. Match the compound, batch details and report date to the material you are evaluating. This example is for BPC-157 10mg. For help interpreting a report, read our peptide COA research guide.

  • Issued by the testing laboratory, not rewritten by us
  • Identity confirmed by mass spectrometry
  • Purity quantified by reverse-phase HPLC
  • Published in the COA library for every certificate we hold
Certificat d’analyse pour BPC-157 10mg, as issued by the testing laboratory
BPC-157 — 10MGBrowse all certificates
Shipping & returns

Handled with care, delivered discreetly

Processing time

Confirmed orders are prepared and dispatched within 24 hours, Monday through Friday, excluding holidays.

Discreet delivery

All orders ship in plain, temperature-considerate packaging. Domestic shipping is a flat $15.00 per order — no free shipping is offered.

Tracked & insured

Every shipment includes tracking. Report any transit damage within 2 days of delivery for replacement.

Returns policy

All sales are final due to the research nature of these materials. If your order arrives damaged, incorrect, or incomplete, contact us within 2 days for a replacement or refund.

Research Documentation

Review our Certificates of Analysis (COAs) for available batch testing documentation, or browse our research peptide catalog.

Research-use compliance

All products offered by NUPEPS Peptides are sold strictly for laboratory and in-vitro research purposes only. They are not intended to diagnose, treat, cure, or prevent any disease, and are not for human or animal consumption. Products are not drugs, foods, cosmetics, or dietary supplements as defined by the FDA.

By purchasing, you represent that you are a qualified researcher or institution, at least 21 years of age, and that you will handle all materials in accordance with applicable laws, institutional policies, and good laboratory practice. It is the buyer's responsibility to ensure compliance with all local, state, and national regulations.

Statements on this website have not been evaluated by the Food and Drug Administration. NUPEPS Peptides assumes no liability for misuse of its products.