Physician-reviewed on every orderCompounded in the USADispensed by licensed U.S. pharmaciesDiscreet, tracked delivery nationwideOne honest price — evaluation included
PEP RX Epithalon — physician-supervised, U.S.-made peptide therapy
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Epithalon

50mg (10mL)Injectable vial

Epithalon is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) derived from the pineal peptide epithalamin, understood to relate to telomerase activity and circadian regulation. Physicians consider it in connection with cellular aging markers and longevity-associated pathways, where clinically appropriate.

$337One-time
Physician evaluation included
  • Personalized guidance, one-on-one with your care team.
  • If a physician determines it isn't the right fit, you pay nothing.
Automatic Monthly Refills

$303 / month

Start on refills

Same vial, shipped monthly — a lower rate for staying under continuing physician care. Skip or cancel anytime.

Cancel or pause anytime · Ships only after physician approval

You complete a secure medical intake first. A licensed U.S. physician reviews it — typically within 24 to 48 hours — and you are only charged once a physician approves your protocol. Each completed screening remains valid for 12 months. See how it works · Meet our physicians

MOA

Mechanism of action

How Epithalon works at the receptor, signaling, neural, and regulatory levels — shared to inform, never to promise an outcome. Your physician confirms what is appropriate for you.

Receptor Activation

Epithalon is not characterized by classical cell-surface receptor binding; it is understood to act at the level of the cell nucleus and chromatin rather than a single membrane receptor. The peptide is understood to interact directly at gene-promoter regions, and it may indirectly modulate pineal signaling that influences melatonin-related receptor systems downstream.

Cell Signaling

Its most-discussed intracellular effect is an association with telomerase reverse transcriptase (TERT) expression, which is understood to relate to telomere maintenance in cultured cells. It is also associated with changes in gene-expression patterns and modulation of antioxidant and apoptosis-related signaling, though the precise downstream cascades are not yet fully established.

Neural Activity

Through its pineal-derived lineage, Epithalon is understood to be relevant to circadian and melatonin-related signaling rather than direct neurotransmission. It is associated with restoration of melatonin rhythmicity, which may relate to sleep-wake and central timekeeping pathways; broader direct neural activity is only modestly described.

Regulatory Pathways

At a systemic level, Epithalon is understood to relate to neuroendocrine and circadian regulation, including markers tied to the pineal-hypothalamic axis. It is also linked to immune and antioxidant regulatory measures and to age-related shifts in hormonal rhythm, which underpins physician interest in its role within longevity-focused protocols.

What to expect

Built around you, never one-size-fits-all

Who it's for

A physician may consider Epithalon within a supervised longevity protocol for adults interested in cellular-aging and circadian-rhythm support, evaluated on an individualized basis.

What's included

Includes one 50mg (10mL) vial of Epithalon, a licensed physician evaluation, and personalized reconstitution and usage guidance.

Ongoing care

Your physician stays involved beyond the first order — check-ins, dose guidance, and refills under continuing supervision.

The Rx standard

Prescribed, compounded, supervised.

This is not a research chemical bought from an anonymous importer. Every therapy is prescribed by a licensed physician and compounded for you by a licensed U.S. pharmacy — American-made, on your order.

  • Compounded by licensed U.S. pharmacies to USP standards
  • Compounded by a licensed U.S. pharmacy on your prescription
  • Reviewed and prescribed by U.S.-licensed physicians
  • Cold-chain handling and discreet, tracked delivery

Begin Epithalon with a physician evaluation

One honest price, evaluation included. A licensed physician reviews your case before anything ships — with a full refund if it isn't the right fit.