What does Epithalon do?

Epithalon is described as a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Gly, also abbreviated AEDG. It has been studied mainly in gerontology-related Russian research and is discussed for telomere biology, longevity research, anti-aging claims, and sleep. The supplied evidence does not show FDA approval or definitive proof that it slows aging in humans.

How does Epithalon work?

The proposed mechanism centers on telomerase signals seen in cell models. The source also describes possible links to melatonin production, antioxidant systems, and gene-expression changes involving pineal and hypothalamic pathways. These mechanisms are research hypotheses and laboratory observations; they should not be read as proven clinical effects in people.

Is Epithalon FDA approved?

No. The source states that Epithalon is not FDA approved and characterizes it as investigational, with a current FDA Category 2 note pending formal regulatory action described in the source.

What are the side effects of Epithalon?

The source reports generally good tolerability along with injection site reactions, transient mild headache, sleep disturbances, possible immunogenicity, and uncertainty about long-term safety. Frequency and causality are not established from the supplied evidence.

What is the typical dose of Epithalon?

The source reports a community common dose of 5-10 mg daily for 10-20 days, with a broader community range of 5-20 mg daily and subcutaneous or intramuscular administration. These are reported research or community patterns, not medical instructions.

Bioregulators Clinical Trials - human trials under way

Epithalon

Also known as: Epitalon, Epithalone, AGAG

At a glance

PeptiGuide dataset · reviewed Aug 2026

What it is

Synthetic AEDG tetrapeptide studied for telomere and sleep-related aging research.

Status

Clinical Trials

Evidence level: human studies

Typical dose

5–10mg

Subcutaneous or intramuscular injection

Researched for

Longevity, telomere support, anti-aging, sleep

Trial progress

PrePreclinical
IPhase I
IIPhase II
IIIPhase III
IVPhase IV
FDAFDA approved

Preclinical - Emerging human evidence with important limitations

Use the tools

In plain language

Synthetic AEDG tetrapeptide also known as Epitalon.
Studied for longevity, telomere support, anti-aging, and sleep-related topics.
Source labels it investigational and not FDA approved.
Evidence includes human-trial labeling in the source, but the research summary emphasizes limited independent human replication.
Reported dosing patterns are research or community observations, not approved instructions.

How it's thought to work

Epithalon is proposed to act through telomerase-related biology, with cell-culture reports describing telomerase activity and telomere elongation in human fibroblasts. The source also notes possible effects on melatonin, antioxidant defenses, and gene expression in pineal-hypothalamic pathways. Translation from these observations to meaningful human anti-aging outcomes remains unproven in the supplied evidence.

What the research shows

Where the research stands

The supplied research narrative gives greatest weight to laboratory and animal data. It cites a 2003 report by Khavinson and colleagues on telomerase activity and telomere changes in cultured human fibroblasts, plus a 2025 review discussing geroprotective and neuroendocrine research. Animal studies are described as reporting lifespan and tumor-incidence findings. Human evidence is characterized as limited, often small or open-label, and not independently replicated at the scale needed to prove lifespan extension or reliable telomere-length effects in people.

What it shows

✓ Human studies

Emerging human evidence with important limitations

△ Limitations

Study protocols describe research and are not dosing recommendations.

Bottom line: Investigational; primarily Russian research. Source notes current FDA Category 2 status pending formal reclassification activity in 2026. Not FDA Approved

Typical dosing

CommunityCommunity dataset

5–10 mg

daily for 10-20 days

5 mgfull range seen20 mg

Community-reported cyclic use includes breaks lasting months, with repeat cycles described as one to two times yearly. This is not a validated dosing recommendation. · 10-20 days

Research dosing

Study-specific protocolsHuman trials under way - protocols are study-specific

Doses observed in studies

5-10 mg daily for 10-20 days

Research Literature - Observed in studies

Study protocols describe research and are not dosing recommendations.

Duration: 10-20 day cycles
Administration: Subcutaneous or intramuscular injection

Timing & administration

Best time to take

Before bed

Once daily for 10-20 day cycles

Food recommendation

With or without food

Why this timing?

The source connects bedtime use to melatonin-related biology and sleep-period repair hypotheses; this is a rationale reported by the source, not proof of clinical benefit.

Possible side effects

Not everyone experiences these. Individual responses vary with dose, duration, and personal factors.

Generally well-tolerated
Injection site reactions
Mild headache
Sleep disturbances
Risk of immunogenicity
Long-term safety not established

Not everyone experiences side effects, and severity can vary by context, purity, route, and individual health factors.

Sources

PubMed ClinicalTrials.gov FDA.gov

Frequently asked questions

Sequence

Ala-Glu-Asp-Gly (AEDG)

One open dataset

Every fact on this page - doses, side effects, references - comes from the same PeptiGuide dataset that powers the Tracker, Compare, and the Lab.

Browse the dataset

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Educational resource, not medical advice. Talk to your clinician before acting on anything here.

Community discussion

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Epithalon

In plain languageIn plain language

How it's thought to workHow it's thought to work

What the research showsWhat the research shows

Typical dosing

Research dosing

Timing & administrationTiming & administration

Possible side effectsPossible side effects

SourcesSources

Frequently asked questionsFrequently asked questions