Comparison
Epitalon vs NAD+
Two longevity compounds with problems of completely different kinds. One has a replication problem. The other has a delivery problem.
Epitalon rests on Russian work from the 1990s and 2000s reporting effects on telomerase and lifespan. The gap is specific: that literature has not been independently replicated outside the group that produced it.
NAD+ has the opposite shape of problem. Nobody disputes its role in cellular metabolism. What is contested is whether giving the molecule itself, rather than a precursor, raises the levels that matter. Injected NAD+ is also widely reported to be unpleasant at the doses people use.
Neither has an outcome you could measure on any timescale a person actually tracks. That fact ought to govern how both are approached.
| Attribute | Epitalon | NAD+ |
|---|---|---|
| What it is | Four-amino-acid peptide | A coenzyme present in every cell |
| Evidence level | Preclinical | Early human |
| The main gap | Not independently replicated | Whether direct administration raises what matters |
| Dosing pattern | Short courses, a few times a year | Ongoing or in blocks |
| Reported tolerability | Generally uneventful | Injection discomfort is the most consistent effect |
Things worth knowing
- NAD+ discomfort scales with dose and injection speed and is not evidence of anything working. It is the effect people most often read as a signal.
- Oral NAD+ precursors are the route with more human study behind them, and they are a different intervention from injecting NAD+ itself.
- These two are commonly run together. The stack page covers what that involves, and why the pairing is a category, not a strategy.
Full profile
Epitalon
A four-amino-acid peptide studied almost exclusively by one Russian research group, best known for claims about telomerase activation.
Full profile
NAD+
A coenzyme present in every cell, given by injection or infusion in the hope of raising cellular levels. Not a peptide, and poorly absorbed by the routes people use.
Related
This page is educational. It describes what published research reports, not what you should do. Peptides discussed here are largely not approved for human use, and nothing on Bioalmanac is medical advice.