Peptides are short chains of amino acids - the same building blocks that make up proteins, just in much smaller sequences. Where a protein may contain hundreds of amino acids, a peptide is typically only a few to a few dozen.
In biology, peptides act as signaling molecules and play roles in a wide range of processes, which is why they are a common subject of laboratory and research study.
Research peptides are frequently supplied as a freeze-dried (lyophilized) powder for stability, then dissolved into liquid form with a suitable diluent when needed for study.
This overview is general and educational - it is not a recommendation for any particular use.
This article is for general educational purposes only and is not medical, health, or professional advice.