Peptides are small messenger molecules that cells use to send signals and...

https://magic-wiki.win/index.php/What_Does_It_Mean_When_a_Peptide_Is_Degraded_Quickly_in_a_System%3F

Peptides are small messenger molecules that cells use to send signals and regulate body functions. Scientists study peptides to understand how they bind to specific receptors and activate signaling pathways inside cells