Made, not extracted
A synthetic peptide is assembled chemically, typically by joining amino acids one at a time in a controlled process, rather than being isolated from a biological source. The result is a defined molecule with the intended sequence. Describing a peptide as synthetic is a statement about how it was produced, not a claim about what it does.
Why synthesis is common for research peptides
Chemical synthesis allows a specific sequence to be produced consistently and characterised against a specification. It also makes it straightforward to prepare defined fragments and analogues — variants that differ from a reference sequence in a defined way.
What it means for documentation
A synthetic research peptide is described by its sequence and supported by documentation such as a certificate of analysis where available. As with all materials here, it is supplied for laboratory research use only.
Frequently asked questions
Does synthetic mean lower quality?
No. Synthetic describes the manufacturing route. Quality is described separately through characterisation and documentation.
What is a peptide analogue?
A molecule based on a reference sequence but deliberately altered in a defined way, such as a substituted or modified residue.