Advances in molecular biology and cellular science have positioned peptides as an important area of investigation within aging and longevity research. Peptides short chains of amino acids play essential roles in intracellular communication, tissue signaling, and regulatory pathways that influence cellular maintenance over time. As aging is increasingly understood as a multifactorial biological process, researchers are examining how specific peptides may interact with mechanisms linked to cellular repair, metabolic balance, and structural integrity. Emerging scientific evidence suggests that certain peptides may be relevant to age-associated research due to their involvement in pathways related to mitochondrial activity, protein synthesis, oxidative stress response, and extracellular matrix regulation. While many findings remain at the experimental or preclinical stage, these peptides continue to attract attention for their potential to deepen scientific understanding of how aging unfolds at the molecular level.