What Are Peptides?
An intro to peptide chemistry & research.
Definition
Peptides are short chains of amino acids — typically between 2 and 50 — linked together by peptide bonds. They sit between single amino acids and full-length proteins on the molecular size spectrum.
Why Researchers Study Them
Because peptides are smaller and more selective than proteins, they make ideal tools for probing receptor pathways, signaling cascades, and structure-activity relationships.
Common Categories
- Growth factors: CJC-1295, Ipamorelin, GHK-Cu
- Repair / healing: BPC-157, TB-500
- Metabolic: AOD-9604, Tesamorelin
- Cognitive: Selank, Semax
Handling Notes
Lyophilized peptides are stable for extended periods at −20°C. Once reconstituted, store at 2–8°C and use within 14–30 days depending on the compound.
Research Use Only. Information provided here is for laboratory and academic context — not medical advice.