Grey peptide products
Sale
Engineered in the dark, proven in the light
The standard for serious research.
High-purity peptides third-party verified and discreetly shipped from a source you can trace.
99.4%
Avg. lot purity
30+
Compounds in stock
24h
Same-day dispatch
The catalog
Grey peptide products
Grey peptide products
Sale
Grey peptide products
Sale
Grey peptide products
Sale
Grey peptide products
Sale
Grey peptide products
Sale
Grey peptide products
Sale
Grey peptide products
Sale
The catalog
CAPSULES
CAPSULES
Sale
CAPSULES
Sale
The Onx standard
Three promises on every order.
Verified Quality
Tested With Precision
Every research compound should meet a clear standard of quality. We prioritize rigorous testing and reliable documentation so researchers can make informed decisions about the materials they work with.
Complete Transparency
Documentation You Can Trust
Research deserves clear and accessible information. We provide straightforward product details and supporting documentation to help researchers understand exactly what they are purchasing before placing an order.
Reliable Research Supply
Built Around Your Research
From selecting your materials to receiving your order, we focus on creating a dependable research-supply experience. Clear information, responsive support, and a streamlined ordering process keep your work moving forward.
FAQ
Questions, answered.
Yes. Every lot is independently assayed for purity by reverse-phase HPLC and confirmed for identity by mass spectrometry before it is listed. The certificate is archived against a unique lot ID and published in the COA lookup.
Use the COA lookup to search by compound or lot number. The matching certificate also lives in your account after purchase.
Products are supplied as a lyophilized powder, shelf-stable and sealed against light and moisture — no cold chain required for shipping. For long-term storage, keep lyophilized material at -20°C and protected from light. Storage guidance is listed on each product page.
In-stock orders are dispatched the same or next business day with tracking. Expedited options are available at checkout. See Shipping for details.
Yes. Orders ship in plain, unbranded, tamper-evident packaging. Nothing on the outside identifies the contents.