What is a Peptide Certificate of Analysis (COA)?
A Peptide Certificate of Analysis (COA) is a document that reports analytical testing performed on a specific peptide sample or batch. For…
Read articleResearch Journal
Peptide science, in context.
Long-form explainers, comparisons, and study round-ups for the research community.
- 58 articles
- PubMed cited sources
- COA on every batch
Research Peptides vs. Compounded Peptides: Key Differences
Research peptides are laboratory materials intended only for scientific research, while compounded peptides are drug preparations made by licensed pharmacies for patient-specific…
Read article
Peptide Companies That Received FDA Warning Letters in 2026
The FDA issued warning letters to multiple companies in 2026 after reviewing their websites, inspecting facilities, or identifying other regulatory violations involving…
Read article
Retatrutide Release Date: What Do We Know So Far in 2026?
As of September 2026, retatrutide does not have an official commercial release date. Eli Lilly is still developing the drug, although the…
Read article
Everything You Need to Know About Retatrutide
Retatrutide (LY3437943), developed by Eli Lilly and Company, is an investigational peptide currently not approved for human consumption and is under investigation.…
Read article
Best Website to Buy Tesamorelin in 2026
Neuro Peptides is one of the best options to buy Tesamorelin for research in 2026. It offers Tesamorelin 10mg for $85, with…
Read article
Retatrutide Vs Semaglutide: Mechanism and Research
Retatrutide and semaglutide differ mainly in how they interact with hormone receptors in the body. Semaglutide activates one primary target, the GLP-1…
Read article
Retatrutide Research: What Do Clinical Studies Show in 2026?
Retatrutide has emerged as one of the most highly anticipated substances in metabolic studies in 2026. The reason for the high level…
Read articleYou're all caught up · more articles coming soon
Every compound we write about is batch-tested.HPLC purity and mass-spec identity for every lot, published openly.
View certificates of analysis