Home / Blog
Short, technical posts written by our chemists and research collaborators — covering analytical methods, storage and handling, and the science behind specific compounds.
Showing 8 of 13 articles
By Dr Tshering Pedon, Research Writer, Koi Research Labs Last updated June 12, 2026 | Reading time: about 15 minutes
Direct Answer Lyophilized (freeze-dried) peptides typically remain stable for 2 to 5 years when stored correctly. The gold standard is
Direct AnswerGHK-Cu (glycyl-L-histidyl-L-lysine coupled with copper) is a naturally occurring human tripeptide that acts as both a cellular signaling molecule
Direct Answer KPV is a naturally occurring tripeptide made of three amino acids: lysine (K), proline (P), and valine (V).
Direct AnswerTB-500 is a synthetic 7-amino-acid peptide with the sequence Ac-LKKTETQ. It is the N-acetylated 17-23 fragment of thymosin beta-4
Direct Answer HPLC and mass spectrometry are the two foundational analytical tests on any research peptide Certificate of Analysis. They
Certificate of analysis is the document that tells you what is actually in the vial. For research peptides sold as
Three peptides dominate every conversation about metabolic pharmacology in 2026: semaglutide, tirzepatide, and retatrutide. All three come from the same
Try a different category or keyword.
No account yet?
Create an AccountWelcome to KOI
Join our researcher list and we'll email your code right away.
• ≥99% purity target • Third-party tested • COA per batch • Fast US shipping
For research use only — not for human or veterinary use. Products are laboratory research chemicals, not drugs, supplements, or food.
