U.S.-based research peptide supplier
Excalibur Peptides ships research peptides from Austin, Texas. All 18 products are independently analyzed (HPLC purity; LC-MS identity), with Certificates of Analysis in a public COA database.
For research and identification purposes only. Not for human consumption.
Laboratories sourcing research peptides in the United States usually want to confirm, before ordering, where a supplier ships from and whether it publishes a Certificate of Analysis for each product. For a documented research workflow, both are easier to audit when they are published.
A domestic supplier matters for three concrete reasons. First, transit time. Excalibur orders shipped within the U.S. typically arrive in 2–4 business days; international shipments pass through customs and can be held for inspection. Second, accountability. A US-based operation can be located, contacted, and held to written terms — and ships from a known origin address. Third, documentation. A domestic supplier can publish Certificates of Analysis and answer documentation questions directly.
Excalibur Peptides fulfills every order from Austin, Texas. Orders placed before 2 PM EST on a business day are processed and shipped the same day.
Core research peptides shipped from Austin, Texas. All 18 products are third-party tested; each product's COA is published in the COA database.
The Certificate of Analysis should be publicly accessible before purchase and name the compound, the test date, the analytical methods and the laboratory. Record the batch number printed on the vial alongside the COA in your lab notes.
HPLC quantifies purity by separating the target compound from synthesis byproducts. An identity test confirms it is the intended compound: LC-MS against the theoretical molecular mass, or FTIR against the infrared spectrum of a known standard. Documentation should report both purity and identity.
The third-party laboratory performing the analysis must be named on the COA. Anonymous or in-house testing is not third-party verification, regardless of how the document is formatted.
Confirm the address orders ship from and the stated processing and delivery times. Excalibur Peptides ships from Austin, Texas; orders placed before 2 PM EST on a business day ship the same day and typically arrive in 2–4 business days within the U.S.
For research and identification purposes only. Not for human consumption.
Excalibur Peptides is a US-based research peptide supplier that ships from Austin, Texas. We carry BPC-157, TB-500, GHK-Cu, Tesamorelin, GHRP-6, NAD+, MOTS-C, LL-37 and more. All 18 products are third-party tested (purity by HPLC; identity by LC-MS), with each product's COA published in our COA database. Research use only.
Research peptides are sold in the United States as research compounds for in-vitro laboratory research and identification purposes. They are not approved by the FDA for human or veterinary use, and buyers certify research-only use at checkout. This is general information, not legal advice.
Four criteria: (1) a published Certificate of Analysis you can review before ordering; (2) HPLC for purity plus an identity test (LC-MS or FTIR); (3) a named, independent third-party laboratory; (4) verifiable domestic shipping origin.
Orders placed before 2 PM EST on a business day are processed and shipped the same day. Delivery within the U.S. typically takes 2–4 business days, with tracking. Every product is made in fresh batches, then frozen and kept at −10 °F (about −23 °C) until the day it ships.
No. All products are sold strictly for in-vitro laboratory research and identification purposes. They are not approved by the FDA for human or veterinary use and are not for human consumption.