8 guides

Buyer guides

Everything a first-time lab purchaser needs to read a supplier's paperwork with confidence. Practical, short, and about the suppliers and their documents only; nothing here is medical advice.

Understanding Research Peptide Prices: How to Compare Like for Like (October 2026)

How research peptide prices vary by fill, blends, format and supplier tier, with BPC-157 5 mg prices from 15 suppliers and why cheap needs a certificate.

Updated 2026-10-19

Research Peptide Supplier Return Policies Compared (October 2026)

All-sales-final, money-back windows and replacement-only policies at research peptide suppliers, compared by name with windows, fees and purity guarantees.

Updated 2026-10-19

Research Peptide Supplier Shipping Policies Compared (October 2026)

Dispatch cutoffs, carriers, free-shipping thresholds and international availability for 20 research peptide suppliers in one table from our October 2026 data.

Updated 2026-10-19

Reading a Peptide Lab Report in Five Minutes: A First-Time Buyer's Walkthrough (October 2026)

A five-minute walkthrough of a research peptide certificate of analysis: the lab, the lot, the date, the purity method, extra tests and the listing match.

Updated 2026-10-19

Prefilled Peptide Pens vs Vials: A Purchasing Comparison (October 2026)

Pens and vials as a buying decision: what each format is, how suppliers document testing for each, how pricing is listed, and which suppliers sell pens.

Updated 2026-10-19

Payment Methods and Buyer Protection at Research Peptide Suppliers (October 2026)

Card, ACH, wire, crypto and peer-to-peer apps compared on chargeback rights, plus which research peptide suppliers take cards and which take crypto only.

Updated 2026-10-19

How to Spot a Peptide Scam Site: Clones, Missing Entities and Copied Certificates (October 2026)

Seven warning signs of a research peptide scam site: clone domains, no company, crypto-only checkout, removed review profiles, copied certificates, what to do.

Updated 2026-10-19

How to Choose a Research Peptide Supplier: A Priority Checklist (October 2026)

A six-step checklist for picking a research peptide supplier: certificates, named labs, company identity, card payments, written policies and catalog fit.

Updated 2026-10-19