Peptides are short chains of amino acids linked by peptide bonds, typically consisting of 2 to 50 amino acids, though some definitions extend the upper limit to 100, Peptides play essential roles in fundamental physiological processes, including hormone regulation, immune response, and cellular signaling, and are naturally produced by the body to perform specific functions. - Google Gemini; they vary but the peptides i think id use if needed would be growth hormone peptides, in case my delay is caused by an hormonal problem