Peptide Glossary: Dosing & Research Terms Explained

Bacteriostatic water contains 0.9% benzyl alcohol as a preservative and can be used for weeks after opening, while sterile water has no preservative and is single-use only.

A bioregulator peptide is a very short peptide studied for tissue-specific gene expression regulation, rooted in Khavinson-tradition research and organized by organ system rather than a shared receptor.

A COA is a third-party lab report verifying a specific batch's purity and identity — the closest thing to an independent quality guarantee a research peptide vendor can offer.

GHS is the umbrella category for compounds that trigger the pituitary to release its own growth hormone — covering GHRH analogs and GHRPs like Ipamorelin, CJC-1295, Tesamorelin, and Sermorelin.

HPLC-MS testing pairs high-performance liquid chromatography with mass spectrometry to verify a peptide's purity and confirm its molecular identity — two separate questions a credible COA has to answer.

Lyophilized powder is peptide that has been freeze-dried, removing its water content so it stays stable and shelf-stable until reconstituted before use.

A nootropic peptide is studied for cognitive effects rather than metabolic or hormonal ones — the category is anchored by Semax and Selank, both administered intranasally.

A peptide blend is a single vial containing two or more distinct peptides combined by the manufacturer at a fixed ratio, rather than a single-compound peptide sold on its own.

Reconstitution is the process of adding a liquid diluent to a lyophilized peptide to turn it back into a solution that can be measured and drawn into a syringe.

RUO is a regulatory label meaning a peptide is sold strictly for laboratory research, not human use — it says nothing about quality, purity, or safety on its own.

A vial septum is the self-sealing rubber disc under a vial's cap that a syringe needle punctures to add or withdraw liquid without exposing the contents to open air.