Longevity & Anti-Aging Peptides — By Aging Mechanism
Read this shelf as one category and you'll buy wrong. The compounds here target genuinely different hallmarks of aging — telomere maintenance, mitochondrial function, senescent-cell clearance — and they don't substitute for one another, which is exactly why the shelf gets stacked rather than shopped one-at-a-time. It's also the shelf with the widest evidence gradient, so knowing which vial has human data and which has a single mouse paper matters as much as the mechanism.

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Epitalon
Ala-Glu-Asp-Gly tetrapeptide

MOTS-c
Mitochondrial-Derived Peptide (16 amino acids)

NAD+
β-Nicotinamide adenine dinucleotide

SS-31
Elamipretide cardiolipin-binding tetrapeptide

NA-Epitalon
N-Acetyl Epitalon Amidate

FOXO4-DRI
FOXO4 D-retro inverso senolytic peptide

P21
FGL fibroblast growth loop peptide

Thymulin
Zinc-binding nonapeptide thymic hormone

Gonadorelin Acetate
GnRH decapeptide (synthetic LHRH)
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Four different aging targets on one shelf
Sorting by mechanism is the only way this shelf makes sense:
- Telomeres: Epitalon, NA-Epitalon
- Mitochondria & cellular energy: MOTS-c, SS-31, NAD+
- Senescent-cell clearance: FOXO4-DRI
- Other regulatory: P21, Thymulin, Gonadorelin Acetate
Telomeres: Epitalon and NA-Epitalon
Epitalon is the most-studied synthetic telomerase activator outside the TA-65 class, with decades of work behind it — though most from a single research group, so the evidence is deep in volume but thin in independent replication. NA-Epitalon is the N-acetylated form, modified for stability. Same target, a pharmacokinetic tweak between them.
Mitochondria: MOTS-c, SS-31, NAD+
This is the energy-metabolism cluster. MOTS-c is a mitochondrial-derived peptide tied to metabolic regulation. SS-31 targets the inner mitochondrial membrane and cardiolipin. NAD+ isn't a peptide at all — it's a coenzyme central to energy metabolism and DNA repair whose levels fall sharply with age — but it lives here because the target is the same. It's dosed and priced by volume, not milligrams.
The senolytic edge: FOXO4-DRI
FOXO4-DRI is the newest idea on the shelf: a peptide that disrupts the FOXO4-p53 interaction senescent cells depend on, selectively pushing those cells into apoptosis while sparing healthy ones. The landmark data is a 2017 mouse paper — no human trials — so it sits at the opposite end of the evidence gradient from NAD+.
Longevity peptides — buying & shipping FAQ
What you need to know before ordering longevity vials.
Which longevity peptide should I start with?
Start by picking a hallmark, not a price. Epitalon if telomere maintenance is the goal; MOTS-c, SS-31 or NAD+ for mitochondrial and energy metabolism; FOXO4-DRI for senescent-cell clearance. They target different mechanisms and are commonly stacked across groups rather than substituted, so the 'first' vial is whichever mechanism you care about most.
Is NAD+ actually a peptide?
No — it's a coenzyme, not a peptide. It sits on this shelf because it targets the same mitochondrial and DNA-repair machinery as the peptide compounds here. NAD+ levels drop roughly by half across middle age, which is the usual case for supplementing it. It's dosed by volume rather than milligrams.
Epitalon or NA-Epitalon?
Same telomerase target; the difference is the molecule. NA-Epitalon is the N-acetylated version, modified to resist enzymatic degradation and extend its active window. Regular Epitalon has the larger body of research behind it. Pick NA-Epitalon for the pharmacokinetic edge, standard Epitalon for the deeper (if single-source) evidence base.
Why does evidence quality matter so much on this shelf?
Because it's wildly uneven and price doesn't track it. NAD+ repletion has human clinical data; Epitalon has decades of mostly single-group work; FOXO4-DRI rests on one 2017 mouse study. Those are three different levels of confidence sitting at similar prices, so read the grade before the sticker.
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