Anti-Aging Peptides: NAD+, Epithalon, GHK-Cu

After 40, NAD+ levels in your cells drop by roughly half. Your mitochondria produce less energy. DNA repair slows down. Sleep quality declines. Skin loses elasticity. The research on age-related peptides keeps pointing back to three compounds that target these processes through completely different pathways.

NAD+: the cellular energy problem

[[NAD+|14]] (nicotinamide adenine dinucleotide) is a coenzyme involved in over 500 enzymatic reactions. Every cell in your body uses it. The main jobs: energy production in mitochondria, fueling DNA repair enzymes (PARPs), and activating sirtuins (SIRT1-7), which regulate stress response and longevity pathways.

The problem: NAD+ levels decline 50% between ages 40-60 in some studies. The enzyme CD38, which consumes NAD+, increases with age and chronic inflammation. Less NAD+ means less energy, slower repair, weaker sirtuin activity. The downstream effects show up as fatigue, cognitive fog, slower recovery.

Animal studies are encouraging. Aged mice given NAD+ precursors showed mitochondrial function comparable to young mice (Gomes et al., Cell, 2013). NAD+ restored muscle function, improved insulin sensitivity, and extended healthspan in multiple rodent models.

Available as [[NAD+|14]] in vial format (500mg) or [[NAD+ Pen|35]] pre-filled pen (500mg) for those who prefer zero reconstitution.

Epithalon: the telomere angle

[[Epithalon|15]] is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) developed by Russian gerontologist Vladimir Khavinson over decades of research on pineal gland peptides.

The mechanism centers on telomerase activation. Telomeres are protective caps at chromosome ends that shorten with each cell division. When they get critically short, cells stop dividing or die. Telomerase rebuilds them. Khavinson's research showed epithalon increased telomerase activity in human somatic cells (Khavinson et al., Bull Exp Biol Med, 2003).

There's a second angle: pineal gland support. Epithalon appears to restore melatonin production, which drops significantly with age. Better melatonin means better circadian rhythm, deeper sleep. A study on elderly patients (Khavinson & Morozov, 2003) showed improved cortisol rhythm and sleep quality after epithalon treatment.

Typical protocol: 10mg over 10-20 days, repeated 1-2 times per year. [[Epithalon|15]] comes in 10mg and 50mg vials.

GHK-Cu: the tissue repair gene switch

[[GHK-Cu|24]] (glycyl-L-histidyl-L-lysine copper complex) is a tripeptide naturally found in human blood plasma. At age 20, plasma levels sit around 200 ng/mL. By 60, they're down to about 80 ng/mL.

What makes GHK-Cu unusual: it modulates over 4,000 genes. Many of these are involved in tissue repair, antioxidant defense, anti-inflammatory signaling, and collagen/elastin production. That's an extraordinary breadth for a three-amino-acid molecule with a copper atom attached.

The collagen data is solid. GHK-Cu stimulates production of collagen types I and III, the main structural proteins in skin and connective tissue. Wound healing studies show accelerated closure and better tissue remodeling. Some researchers describe it as resetting gene expression toward a younger pattern.

Administered subcutaneously or used topically (for skin-specific goals). [[GHK-Cu|24]] comes in 50mg vials.

Comparing the three

Each one targets a different piece of the aging puzzle:

• NAD+ tackles cellular energy and DNA repair. If you feel the fatigue and cognitive slowdown of aging, this addresses the metabolic root.
• Epithalon works on telomere maintenance and circadian rhythm. If sleep quality has declined and you want a longevity-focused approach, this is the one.
• GHK-Cu goes after tissue degradation and gene expression. If skin aging, wound healing, or inflammatory markers are the main concern, start here.

They're complementary, not competing. Some people run all three in rotation: NAD+ and GHK-Cu on a regular schedule, epithalon as periodic 10-day courses twice a year.

Need help building an anti-aging protocol? Reach out to us and we'll help you figure out what makes sense for your situation.

This article is for educational purposes. Peptides are intended for research use. Consult a healthcare professional before starting any protocol.