Peptides are smaller than proteins, short chains of amino acids linked in a specific sequence. Many biologically active peptides are synthesized in our bodies for essential functions, such as signaling between cells, stimulating hormone secretion, initiating or promoting chemical responses, and more. Peptides are now produced with high fidelity in the laboratory for therapeutic use. Insulin is an example of a peptide critical for homeostasis. Highly effective weight reduction drugssemaglutide and tirzepatide are peptides. Peptides newer in the marketplace and available by prescription hold promise for potentially highly beneficial use. Sermorelin is an analogue that stimulates growth hormone release for muscle growth, fat loss, bone composition, energy, and improved well-being. BPC-157 (body protection compound) improves healing of multiple tissues, reduces inflammation, and stimulates blood vessel growth. Kisspeptin stimulates release of follicle stimulating hormone and luteinizing hormone from the pituitary gland, thus increasing estradiol and testosterone levels in women and men respectively.
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