Paramount, California – September 5, 2026 – Every peptide lot shipped by Peptriva, a U.S.-based supplier of research-use-only reference peptides, is now verified twice before it reaches a researcher: once at the point of manufacture and again by an independent, third-party U.S. laboratory upon arrival at Peptriva’s cold-chain facility in California. Under the new Dual-Verification Standard, the company publishes both sets of analytical results in a public, batch-searchable Certificate of Analysis (COA) library, linked to the lot number printed on each vial.
The protocol is designed to close a long-standing gap in the research peptide market, where purity claims are often unsubstantiated. Peptriva’s Dual-Verification Standard requires that every lot undergo two full rounds of analytical testing. The first is performed by the manufacturer, generating a COA that includes purity by high-performance liquid chromatography (HPLC), identity by mass spectrometry, heavy-metal screening by ICP-MS, endotoxin testing, and PCR microbial screening. The second round is conducted by Freedom Diagnostics, an independent U.S. laboratory, which re-assays the lot after it arrives at Peptriva’s California warehouse. Only after both analyses are completed and the results are matched to the specific lot number is the product cleared for sale.
Researchers can access the complete documentation for any vial by searching the COA library on Peptriva’s website, using the lot number printed on the vial. This public database allows any customer to verify that the exact product in hand has met the stated specifications. “In this industry, purity claims are everywhere and verification is rare,” said a Peptriva spokesperson. “We built Peptriva on a simple rule: identity and purity are established analytically, not asserted. Two independent tests per lot, published where anyone can check them – hold us to the third-party numbers.”
The Dual-Verification Standard applies across Peptriva’s catalog of 40 compounds, which includes GLP-1 analog reference compounds such as retatrutide, semaglutide, and tirzepatide, as well as cytoprotective sequences, growth-hormone secretagogues, copper peptides, and laboratory consumables. All products are specified at 99% purity or higher. Orders placed before 5 p.m. ET ship the same day from the company’s California warehouse, with free tracked two-day delivery on every U.S. order and a 30-day money-back guarantee. No account is required to view pricing or Certificates of Analysis.
All Peptriva products are supplied strictly for in vitro laboratory research use only and are not for human or veterinary use. The company’s storefront is age-gated to researchers 21 and older.
Researchers can review the Dual-Verification Standard and search the COA library at https://peptriva.com.
About Peptriva
Peptriva is a U.S.-based supplier of research-use-only reference peptides, founded on the principle that every purity claim should be independently verifiable. Every lot is verified twice – at synthesis and by an independent third-party U.S. laboratory on arrival – with all results published in a public, batch-searchable Certificate of Analysis library. Peptriva fulfills same-day from California with free tracked two-day U.S. shipping.
Disclaimer: All products referenced are intended solely for in vitro laboratory research and are not intended for human or veterinary use, nor to diagnose, treat, cure, or prevent any disease.