Epithalon vs FOXO4-DRI
Which should you choose? Here's what you need to know.
The short answer
Epithalon aims to keep cells young by lengthening telomeres. FOXO4-DRI clears out cells that have already become old and dysfunctional. Different strategies for the same goal: slowing aging.
Epithalon
Metabolic / LongevityEpithalon (epitalon) is a synthetic tetrapeptide originally isolated from the pineal gland. It's studied for activating telomerase — the enzyme that rebuilds telomeres, the protective caps on chromosomes that shorten with age. It may also help regulate circadian rhythms and oxidative stress.
Choose Epithalon if:
You're focused on preventive longevity — protecting cells from aging by maintaining telomere length and supporting cellular replication.
FOXO4-DRI
Metabolic / LongevityFOXO4-DRI is a senolytic peptide designed to selectively eliminate senescent cells — "zombie cells" that have stopped dividing but release inflammatory signals that accelerate aging in surrounding tissue. It works by disrupting the interaction that keeps senescent cells alive, allowing them to undergo natural cell death.
Choose FOXO4-DRI if:
You want to clear out existing senescent cells that are already contributing to inflammation and tissue decline.
Using both together
Epithalon and FOXO4-DRI represent complementary longevity strategies — one prevents cellular aging (telomere maintenance) while the other removes cells that have already aged (senolysis). Some researchers discuss using both, though combined human data doesn't exist yet.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.
Epithalon
FOXO4-DRI
$20.00
Starting from
$99.99
$6.20
Avg. price per mg
$25.00
61
Vendors selling it
16
65 options
In stock now
15 options
9.1/10
Top trust score
9.0/10
0
Purity tests on file
0
Ready to buy?
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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Best Epithalon Vendor
9.0/10
$120.00(50mg)
Best FOXO4-DRI Vendor
6.7/10
$255.00(15mg)
Where does this data come from?
We check vendor prices every day and pull in real purity test results from independent labs — not vendor claims. No vendor can pay to rank higher. See our full methodology.