Peptides Bioscience
Now shipping batch PBS-2026-0142

Research-grade peptides.
Radically transparent.

Every batch independently tested. Every Certificate of Analysis published on the product page. No exceptions.

>99%
Purity
3rd-party
COA
24–48h
Cold-chain
RUO
Research only
Tirzepatide research vial
BPC-157 / TB-500 blend research vial
Semaglutide research vial
PBS-2026-0142PURITY 99.5%
>99% Purity
Third-Party COA
Cold-Chain Shipping
Research Use Only
Catalog

Shop by research category

Six categories, ~50 SKUs, every product backed by a published lab report.

Transparency

Why we publish every report

Most peptide retailers will hand you a COA if you ask. We publish them, signed and dated, before you buy.

01

Every batch tested

Third-party lab verifies purity, identity, and endotoxin levels via HPLC and mass spectrometry on every production batch.

02

Every COA published

Searchable public batch library — accessible without an account. Look up any batch we've ever sold.

03

Every reference cited

Product descriptions reference peer-reviewed literature only. Every citation links to PubMed. No outcome claims, no marketing language.

Bestsellers

Featured this batch

Current inventory · PBS-2026-0142

How it works

From catalog to verified delivery

  1. 01

    Browse the catalog

    Filter by category, dosage, or batch.

  2. 02

    Order with crypto or card

    Crypto orders receive 5% off.

  3. 03

    Cold-chain shipped 24–48h

    Insulated, tracked, signature required.

  4. 04

    Verify your batch COA

    Every shipment ships with its lab report.

Research hub

From the lab notebook

Long-form, citation-heavy briefings on peptide pharmacology and research methodology.

The Peptide Buyer's Guide

40 pages on purity, sourcing, and how to read a Certificate of Analysis. Free PDF.

Download the guide

Join 5,000+ researchers

Weekly peptide breakdowns, new product alerts, and exclusive batch drops.