About Peptigo
Peptigo exists to make research-grade peptides verifiable, traceable, and trustworthy — every product, every time.
A brand built on the inverse of the market.
Walk through the research-peptide market and you’ll find the same pattern: glossy product pages, vague purity claims, and certificates of analysis that nobody can find when you ask for them.
We started Peptigo because the team was tired of buying compounds that didn’t match their spec sheets. Every product our chemists ship has to clear independent third-party HPLC before it ever touches a label — and those reports are published on our lab testing page, verifiable directly with the lab.
That’s the entire premise. Not a slogan, not a positioning angle. A workflow rule we refuse to break, on every order, in every shipment.
We make this concrete with three operating standards we publish openly: verifiable purity, transparent sourcing, and a researcher-first approach to everything from packaging to documentation. Every team decision has to clear all three.
Three commitments we never negotiate.
Verifiable purity
Every product HPLC-tested by an independent third-party lab. COAs are lot-specific — the document on file matches the exact lot you receive.
Transparent sourcing
Synthesized via solid-phase peptide synthesis at GMP-aligned facilities. Every step from raw amino acid to sealed vial is documented and auditable.
Researcher-first design
Pricing, packaging, and documentation built around real lab workflows. Cold-chain shipping standard. No upsells, no surprise SKUs, no marketing buried in your invoice.
Four steps, documented at every stage.
Source the raw
Raw compound qualified at a GMP-aligned synthesis facility.
Synthesize & purify
Solid-phase peptide synthesis followed by reversed-phase HPLC purification.
Test independently
Independent third-party verification through Janoshik Analytical, included with every product.
Ship with COA
Cold-chain shipped with the product’s COA inside the box.
Quality is not a marketing line.
Every product is tested against a fixed internal acceptance standard before it leaves the warehouse. If any of the four thresholds is missed, that lot never reaches a label.
The COA in your box documents the actual measured values for that exact lot — not a representative sample, not a typical range. The lot in your hand.
View Lab TestingThings we won’t compromise on.
Honest copy
We never make medical, therapeutic, or in-vivo claims. Every product page is written for research use only.
No surprise charges
Free shipping over $250, no hidden fees, no upsells at checkout. The number you see is the number you pay.
Easy reorders
Your account dashboard tracks every product you’ve ordered with the matching COAs linked, so reproducing a study is one click away.
Direct support
Email reaches a working researcher on our team, not a ticket queue. If you need a tech answer, you’ll get one — usually same-day.
Peptigo is the only vendor I’ve used where the COA, the label, and the spec sheet all agree. That sounds like a low bar. In this market, it isn’t.E. MARSTON, PHD · INDEPENDENT RESEARCH LAB · ✓ VERIFIED BUYER