Peptides studied across the aging axis — senescence, NAD+, and resilience.
Longevity research examines peptides that act on the hallmarks of aging: cellular senescence, mitochondrial decline, telomere maintenance, NAD+ metabolism, and the gradual loss of circadian and hormonal regulation. The goal in most models is healthspan — preserving function — rather than a single disease endpoint.
Compounds studied here often originate as endogenous regulatory peptides whose expression falls with age. Because aging endpoints are slow and multifactorial, this area leans heavily on biomarker studies, model organisms, and mechanistic work rather than large outcome trials.
The body’s brake on muscle growth — a TGF-β-family growth factor whose inhibition is the leading strategy to preserve muscle, including during GLP-1 weight loss.
View profileA natural myostatin and activin antagonist — by neutralizing the muscle brake it is one of the most potent pro-muscle factors studied, and a doping and gene-therapy flashpoint.
View profileMitochondrially-encoded peptide with reported insulin-sensitizing activity.
View profileA 24-amino-acid mitochondrial-derived peptide with cytoprotective, anti-apoptotic activity — a companion to MOTS-c on the mitochondrial-signaling frontier.
View profileSynthetic tetrapeptide investigated for telomerase activity and circadian effects.
View profileThe natural pineal peptide bioregulator — the animal-derived counterpart to synthetic Epitalon, marketed for aging and telomere support.
View profileA senolytic D-retro-inverso peptide that selectively triggers apoptosis in senescent cells by disrupting the FOXO4–p53 interaction.
View profileThymus-derived polypeptide complex — the founding tissue bioregulator (Cytomax) studied for immune restoration.
View profileSynthetic Lys-Glu dipeptide — the defined short-peptide successor to Thymalin, studied for immune and aging endpoints.
View profileSynthetic Lys-Glu-Asp tripeptide studied as a vascular-axis bioregulator.
View profileSynthetic Glu-Asp-Arg tripeptide studied as a brain/CNS bioregulator.
View profileSynthetic Ala-Glu-Asp-Arg tetrapeptide studied as a cardiac-tissue bioregulator.
View profileSynthetic Lys-Glu-Asp-Trp tetrapeptide studied as a pancreas-tissue bioregulator.
View profileSynthetic Lys-Glu-Asp-Gly tetrapeptide studied as a testis / reproductive-tissue bioregulator.
View profileSynthetic Lys-Glu-Asp-Pro tetrapeptide studied as a prostate-tissue bioregulator — the defined-sequence successor to older prostate extracts.
View profileA natural thymus peptide complex (Cytomax A-6) — the extract-based counterpart to Thymalin, marketed for immune support and aging.
View profileA natural blood-vessel peptide complex (Cytomax A-3) — the extract-based counterpart to Vesugen, targeting vascular tissue.
View profileA natural heart-muscle peptide complex (Cytomax A-14) — the extract-based counterpart to Cardiogen, targeting cardiac tissue.
View profileSmall-molecule NNMT inhibitor (often catalogued alongside peptides).
View profileEssential redox cofactor central to mitochondrial bioenergetics and sirtuin activity.
View profileThe hallmarks of aging — cellular senescence, mitochondrial decline, telomere maintenance, NAD+ metabolism, and loss of circadian and hormonal regulation — usually with healthspan as the goal.
Aging endpoints are slow and multifactorial, so research relies on biomarkers, model organisms, and mechanistic work rather than large outcome trials.
Many are endogenous regulatory peptides whose expression falls with age, studied as candidates to restore more youthful signaling.
How to weigh this evidence
Preclinical, observational, and randomized findings carry very different weight. The evidence hierarchy shows how to rank what you read before drawing conclusions.
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Sequence properties — pI, ε280, net charge & synthesis-difficulty flags.
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Which peptides are best studied for longevity & aging, how they compare, and what the clinical evidence shows — citation-backed answers grounded in PubMed, PubChem, and ClinicalTrials.gov.