Anti-Aging & Longevity Peptides

The Science of Aging — And How Peptides Target It

Aging is increasingly understood not as an inevitable decline but as a set of identifiable biological processes: telomere shortening, mitochondrial dysfunction, cellular senescence, NAD+ depletion, and accumulated DNA damage. Each of these "hallmarks of aging" represents a potential intervention point — and peptides targeting each one are now available for research.

GHK-Cu — Skin Remodeling & Tissue Regeneration

GHK-Cu is a naturally occurring copper tripeptide whose levels decline significantly with age. It activates genes involved in collagen synthesis, stem cell proliferation, and antioxidant defense. Research shows it can remodel damaged skin, stimulate hair growth, and accelerate wound healing — making it one of the most practical anti-aging peptides available.

• Collagen synthesis: Upregulates types I and III collagen production
• Gene expression: Affects 4,000+ genes, shifting expression toward a younger, healthier profile
• Wound healing: Accelerates repair and reduces scarring in multiple tissue types

Epitalon — Telomere Maintenance

Epitalon is a synthetic tetrapeptide that activates telomerase — the enzyme responsible for maintaining telomere length. Telomeres are the protective caps on chromosomes that shorten with each cell division; when they become critically short, cells enter senescence or apoptosis. By reactivating telomerase, Epitalon may extend cellular lifespan and delay replicative aging.

• Telomerase activation: Direct stimulation of telomerase in human somatic cells
• Pineal function: May regulate melatonin production and circadian rhythm
• Longevity data: Animal studies show extended lifespan in multiple species

NAD+ — Restoring Cellular Energy

NAD+ levels decline approximately 50% between ages 40 and 60, and this depletion is implicated in virtually every hallmark of aging. NAD+ is essential for sirtuin function (DNA repair, gene silencing), mitochondrial energy production, and PARP-mediated damage repair. Injectable NAD+ aims to restore these depleted cellular pools directly.

• Sirtuin activation: NAD+ is the required cofactor for all seven sirtuin enzymes
• Mitochondrial function: Improved ATP production and membrane potential
• DNA repair: Required for PARP enzymes that fix DNA damage

FOX04-DRI — Clearing Senescent Cells

FOX04-DRI is a senolytic peptide — it selectively induces death in senescent cells (cells that have stopped dividing but refuse to die, secreting inflammatory factors that damage surrounding tissue). By disrupting the FOXO4-p53 interaction that keeps senescent cells alive, FOX04-DRI releases p53 to trigger apoptosis selectively in these "zombie cells."

• Selective senolysis: Targets only senescent cells, leaving healthy cells unaffected
• Physical restoration: Aged mice showed restored fitness, fur density, and renal function
• SASP reduction: Eliminates the senescence-associated secretory phenotype

SS-31 — Protecting Mitochondria at the Source

SS-31 (elamipretide) is unique among longevity compounds because it targets the inner mitochondrial membrane directly. By binding to cardiolipin, it stabilizes the electron transport chain and prevents excessive reactive oxygen species (ROS) production at the source — rather than scavenging ROS after they've already caused damage.

• Cardiolipin stabilization: Maintains electron transport chain integrity
• ROS prevention: Reduces oxidative damage at the mitochondrial source
• Clinical trials: Phase II/III data in mitochondrial myopathies

Source Anti-Aging Research Peptides

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