About Us — Grey Peptides
About Grey Peptides

Science you can
trust.

We are a US-based peptide manufacturer and global distributor committed to producing the highest-purity research compounds — independently tested, fully documented, and ready to ship.

Our mission

Setting the standard for research integrity

Grey Peptides was founded on a single principle: researchers deserve compounds they can rely on. Too many laboratories waste time and resources because of inconsistent, poorly documented peptide suppliers.

We built the infrastructure to do it right — in-house lyophilization, third-party batch testing on every production run, and full certificate of analysis documentation available before you even place an order.

Our mission is to be the most trusted peptide supplier in the world, one verified batch at a time.

Our lab
2019
Founded in
the USA
99.9%
Minimum purity
per batch
50+
Global research
partners
100%
COA coverage
every batch
48h
Average US
delivery time
What drives us

Our core values

Everything we do is guided by these principles — from how we manufacture to how we communicate with our partners.

Uncompromising quality

Every batch we produce is held to the same rigorous standards — no shortcuts, no exceptions, regardless of order size.

Full transparency

We publish COAs for every batch and make them available for download before purchase. No hidden data, no surprises.

Scientific integrity

Our compounds exist to advance legitimate research. We operate with the discipline and documentation that science demands.

Reliable delivery

Same-day fulfillment, tracked shipping, and proactive communication at every step. Your timeline is our priority.

Partnership mindset

We treat every client as a long-term partner. Dedicated support, flexible ordering, and terms that work for your business.

Global responsibility

Operating with awareness of the regulatory landscape worldwide and ensuring our partners always receive compliant supply.

The people behind it

Our team

A dedicated group of scientists, logistics specialists, and quality assurance professionals focused on one thing — delivering research compounds you can trust.

JH
James Harlow
Founder & CEO

15+ years in biochemical manufacturing and peptide synthesis research.

DR
Dr. Rachel Kim
Head of Quality

PhD in analytical chemistry. Oversees all third-party testing and COA documentation.

MT
Marcus Trent
Operations Director

Manages fulfillment, logistics, and global distribution partnerships.

SL
Sofia Larios
Client Relations

Dedicated to building long-term partnerships with laboratories and distributors worldwide.

Our journey

How we got here

2019

Founded in the USA

Grey Peptides established with a focus on in-house lyophilization and quality-first manufacturing in a controlled US facility.

2020

Third-party testing program launched

Introduced mandatory HPLC and mass spectrometry testing on every production batch, with public COA availability.

2021

First wholesale partnerships

Onboarded our first international distribution partners in Europe and Asia Pacific, expanding global reach.

2023

Expanded product catalog

Launched new proprietary blends and expanded the compound library to over 30 research-grade peptides.

2025

50+ global research partners

Surpassed 50 active international research partners across North America, Europe, Asia Pacific, and the Middle East.

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