Peptide therapy

Peptide therapy uses short amino-acid chains, often injected, intended to modulate growth hormone (e.g., sermorelin, ipamorelin), tissue repair, or metabolism. A few peptides are approved for narrow indications, but most longevity uses are off-label or sourced as research chemicals. Human evidence for anti-aging endpoints is sparse, quality control of compounded products is variable, and regulatory bodies (e.g., FDA) have restricted several popular peptides.