About us
Research peptides you can trust
28° North · Florida's Gulf Coast
28 Peptides supplies high-purity peptides for in-vitro laboratory research from a single facility on Florida’s Gulf Coast. We focus on consistency, transparent testing, and dependable fulfillment so scientists can spend less time sourcing and more time on the work that matters.
Our mission
The research community deserves materials it can rely on. We built 28 Peptides to make high-purity research peptides easy to source, with the documentation and traceability that serious laboratory work requires — and nothing about it dressed up as a consumer product.
Quality first
Every lot is independently tested by HPLC and mass spectrometry, with a certificate of analysis available for the batch you receive.
Built for researchers
Lot-tracked inventory, clear specifications, and accurate strengths so your results stay reproducible.
Responsible by design
We sell strictly for in-vitro laboratory research and verify age and intent at checkout. Compliance is not an afterthought.
From 28° North
The 28th parallel north runs through Florida’s Gulf Coast, where our warehouse sits in the Tampa Bay area. The brand name comes from that line on the map — a small reminder that there’s a real place behind the website, with real people packing and shipping every order.
Inventory, lot records, and quality documentation all live with us in one location. When you have a question about a batch or need a certificate of analysis, you’re talking to the people who handle the product — not a drop-ship middleman or an overseas fulfillment desk.
Research use only
All products sold by 28 Peptides are intended strictly for in-vitro laboratory research and development. They are not drugs, not for human or animal consumption, and not for any food, cosmetic, diagnostic, or therapeutic use.
Read our RUO policy