✦FedEx Delivery1–3 day delivery across the U.S.Free on orders over $200
Eppix Labs

US Supplier

Buy Peptides in the USA

The US research peptide market runs on claims that mostly cannot be checked. Eppix Labs takes the opposite position: every analytical lot is assayed by an independent laboratory before it sells, the certificate is published on the batch’s own page, and each one links to the lab’s verification portal so the numbers can be confirmed somewhere we do not control. Two figures per lot: HPLC purity, and measured milligrams against the label — because a 99.8%-pure vial can still be a short-filled vial.

Fulfilment is FedEx, domestic, tracked, typically one to three business days, free over $200 USD. Pricing is USD end to end and checkout takes credit card, PayPal or cryptocurrency. Nothing crosses a border, so there is no customs window, no seizure exposure, and no weeks-long silence between order and delivery.

Research peptides are not FDA-approved for human or veterinary use, and we supply them strictly for in-vitro laboratory research. For the regulatory picture, start with Are Peptides Legal in the US? and How to Choose a Peptide Supplier.

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Check the batch before you rely on it

Look up the lot code from any vial in the COA library or the batch verifier, then confirm it on the issuing laboratory’s portal. The COA verification guide works on any vendor’s certificate, not just ours.

Frequently asked questions

Is it legal to buy research peptides in the US?
Most research peptides may be sold in the United States for laboratory research use. They are not FDA-approved drugs, not dietary supplements, and Eppix Labs supplies them strictly for in-vitro research. Our guide "Are Peptides Legal in the US?" walks through the FDCA framing in detail.
Why does domestic sourcing matter?
Peptides bought from overseas sellers cross a border: packages can sit in customs for weeks, be returned, or be seized, and there is no recourse when they are. Domestic FedEx shipping means tracked 1–3 day transit with no import step at all.
How do I know a vial matches its certificate?
The lot code printed on the vial must appear on the certificate, and the certificate must be checkable on the issuing laboratory’s own portal — every certificate we publish links to that record. We also publish measured content against label, the figure that catches an underfilled vial a purity number cannot.
What payment methods and discounts are available?
Credit card, PayPal and cryptocurrency. Mix & match any 5+ vials for 12% off or 10+ for 20% off, applied automatically at checkout. Shipping is free over $200.

All products are intended strictly for in-vitro laboratory research. Not for human or veterinary use.