What Are Peptides?
A beginner's guide to peptides — what they are, how they're synthesized, and why purity matters in research.
Definition
Peptides are short chains of amino acids — typically between 2 and 50 — linked by peptide bonds. They are smaller than proteins but share the same fundamental building blocks. In biological systems, peptides act as signaling molecules, influencing a wide range of physiological processes.
How Peptides Are Made
Research peptides are synthesized through solid-phase peptide synthesis (SPPS), a process that builds the amino acid chain one residue at a time on an insoluble resin. After synthesis, the peptide is cleaved, purified — typically via HPLC — and lyophilized into a stable powder form.
Why Purity Matters
Synthetic peptides can contain impurities from incomplete coupling reactions or side products. High-purity peptides — verified to exceed 99% — reduce variability and improve the reliability of research outcomes. BioAura verifies every batch using HPLC and mass spectrometry.
This content is for educational and research purposes only. BioAura products are sold for research use only and are not intended for human consumption, medical diagnosis, or treatment.