--- title: "Epithalon | PepTracker Pro" description: "A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "name": "PepTracker Pro", "url": "https://peptrackerpro.com", "logo": "https://peptrackerpro.com/favicon.png", "description": "Evidence-based educational resource dedicated to improving peptide research literacy.", "contactPoint": { "@type": "ContactPoint", "email": "hello@peptrackerpro.com", "contactType": "customer support" }, "sameAs": [] }, { "@context": "https://schema.org", "@type": "MedicalWebPage", "name": "Epithalon", "description": "A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers.", "url": "https://peptrackerpro.com/peptides/epithalon", "lastReviewed": "2026-06-21", "reviewedBy": { "@type": "Organization", "name": "PepTracker Pro Research Team", "url": "https://peptrackerpro.com" }, "isPartOf": { "@type": "WebSite", "name": "PepTracker Pro", "url": "https://peptrackerpro.com" } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://peptrackerpro.com" }, { "@type": "ListItem", "position": 2, "name": "Peptides", "item": "https://peptrackerpro.com/peptides" }, { "@type": "ListItem", "position": 3, "name": "Epithalon", "item": "https://peptrackerpro.com/peptides/epithalon" } ] }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "People researching telomerase-activating compounds?", "acceptedAnswer": { "@type": "Answer", "text": "Epithalon is a research peptide studied in preclinical models. A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers." } }, { "@type": "Question", "name": "Those interested in longevity and aging science?", "acceptedAnswer": { "@type": "Answer", "text": "Epithalon is a research peptide studied in preclinical models. A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers." } }, { "@type": "Question", "name": "Individuals exploring pineal gland peptides?", "acceptedAnswer": { "@type": "Answer", "text": "Epithalon is a research peptide studied in preclinical models. A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers." } } ] } ] --- [Skip to main content](#main) **Educational information only.** This site does not provide medical advice. [Read full disclaimer](/disclaimer) [PepTracker Pro](/) [Home](/)[Peptides](/peptides)[Compare](/compare)[Glossary](/glossary)[Blog](/blog)[Calculators](/calculators)[Start Here](/start) [Open the App](https://app.peptrackerpro.com) [Peptides](/peptides)/ Epithalon **Research-only content.** This page is for educational purposes and does not constitute medical advice. [Read full disclaimer →](/research-disclaimer) # Epithalon Low Evidence A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers. Aliases Epitalon +2 more Evidence Low Evidence Last Updated 2026-06-21 Reading Time 2 min ## Table of Contents 1. [What It Is](#what-it-is) 2. [Regulatory Status](#regulatory-status) 3. [Evidence Snapshot](#evidence-snapshot) 4. [Commonly Discussed Benefits](#benefits) 5. [Safety & Cautions](#safety) 6. [Comparisons](#comparisons) 7. [Calculator Tools](#calculator) 8. [Citations](#citations) ## What It Is Epithalon (also spelled Epitalon) is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) based on the natural peptide epithalamin, produced by the pineal gland. Research, primarily from Russian laboratories, has explored its potential to activate telomerase, the enzyme responsible for maintaining telomere length. A 2025 study published in PMC confirmed that Epitalon increases telomere length in multiple human cell lines through both telomerase upregulation and alternative lengthening of telomeres (ALT) activity — providing important independent confirmation of Khavinson's original findings. Epithalon is now understood to act on five hallmarks of aging: telomere maintenance, epigenetic regulation, oxidative stress resilience, immune recalibration, and circadian rhythm restoration. In 2026, Epithalon is increasingly studied as part of longevity combination protocols alongside NAD+ and MOTS-c, with researchers targeting multiple aging pathways simultaneously — telomere maintenance (Epithalon), cellular energy (NAD+), and metabolic fitness (MOTS-c). Epitalon is scheduled for PCAC review on July 24, 2026, alongside Emideltide and Semax, to evaluate whether it can be legally compounded under section 503A. Public comments via docket FDA-2025-N-6895 are accepted until July 22, 2026. Also known as: Epitalon, Epithalone, AEDG peptide ## Regulatory Status Category 1 — Bulk Compounding (PCAC review July 24, 2026) Moved from Category 2 back to Category 1 per HHS announcement February 27, 2026. FDA PCAC will review Epitalon (free base and acetate) on July 24, 2026 for potential 503A Bulks List inclusion. Public comment docket FDA-2025-N-6895 open until July 22, 2026. Effective: February 2026 [View FDA Source](https://www.fda.gov/advisory-committees/advisory-committee-calendar/july-23-24-2026-meeting-pharmacy-compounding-advisory-committee-07232026) ## Evidence Snapshot Low Evidence Low Medium High Study Type Model Outcome Link In vitro (2025) Multiple human cell lines — telomere length assays Confirmed telomere lengthening through both telomerase upregulation and ALT activity — independent replication of original Khavinson findings [Source](https://pmc.ncbi.nlm.nih.gov/articles/PMC12411320/) Animal (rat) Aging rodent lifespan study (Khavinson lab) Extended mean lifespan; reduced spontaneous tumor incidence; improved immune markers [Source](https://pubmed.ncbi.nlm.nih.gov/12937682/) ## Commonly Discussed Benefits [Longevity](/benefits/longevity)[Anti-Aging](/benefits/anti-aging)[Sleep](/benefits/sleep)[Immune Support](/benefits/immune-support) Researching Epithalon ? Track it, set reminders, and keep notes in the free app. [Track in App](https://app.peptrackerpro.com/?add=epithalon) ## Safety & Cautions - Most research from a single laboratory group - Limited independent replication of results - No human clinical trials registered in Western databases - Claims about lifespan extension remain unverified in humans ## Comparisons See how Epithalon compares to related peptides: [Epithalon vs FOXO4-DRI](/compare/epithalon-vs-foxo4-dri) [Epithalon vs GHK-Cu](/compare/epithalon-vs-ghk-cu) [Epithalon vs Humanin](/compare/epithalon-vs-humanin) [Epithalon vs Klotho (Alpha-Klotho)](/compare/epithalon-vs-klotho) [Epithalon vs MOTS-c](/compare/epithalon-vs-mots-c) [Epithalon vs SS-31](/compare/epithalon-vs-ss-31) [Epithalon vs Thymosin Alpha-1](/compare/epithalon-vs-thymosin-alpha-1) ## Calculator Tools Use our research tools to explore dosing and reconstitution data: [Reconstitution Calculator](/calculators) ## Citations 1. \[1\] Khavinson VK. et al. — Epithalon peptide induces telomerase activity. Bull Exp Biol Med. 2003 [PubMed](https://pubmed.ncbi.nlm.nih.gov/) 2. \[2\] Epitalon increases telomere length in human cell lines through telomerase upregulation or ALT activity — PMC 2025 [PubMed](https://pmc.ncbi.nlm.nih.gov/articles/PMC12411320/) ### Keep researching in the app - Log Epithalon to your private tracker - Set a dosing reminder - Compare it side-by-side with your stack [Open PepTracker Pro Free](https://app.peptrackerpro.com/?add=epithalon) [Browse more peptides](/peptides) ## Related Peptides ### FOXO4-DRI Low Evidence A senolytic peptide designed to selectively clear senescent cells by disrupting FOXO4-p53 interaction. [Longevity](/benefits/longevity)[Anti-Aging](/benefits/anti-aging)[Skin](/benefits/skin) [View Details](/peptides/foxo4-dri) [\+ Compare](/compare?select=foxo4-dri)[](https://app.peptrackerpro.com/?add=foxo4-dri) ### GHK-Cu High Evidence A naturally occurring copper-binding peptide studied for skin regeneration, wound healing, and anti-aging effects. [Skin](/benefits/skin)[Anti-Aging](/benefits/anti-aging)[Wound Healing](/benefits/wound-healing)[Hair Growth](/benefits/hair-growth)+2 more [View Details](/peptides/ghk-cu) [\+ Compare](/compare?select=ghk-cu)[](https://app.peptrackerpro.com/?add=ghk-cu) ### Humanin Low Evidence An endogenous mitochondrial-derived peptide studied for neuroprotection, cellular stress resistance, and longevity, whose blood levels fall with age and are elevated in centenarians. [Longevity](/benefits/longevity)[Anti-Aging](/benefits/anti-aging)[Neuroprotection](/benefits/neuroprotection)[Metabolism](/benefits/metabolism)+2 more [View Details](/peptides/humanin) [\+ Compare](/compare?select=humanin)[](https://app.peptrackerpro.com/?add=humanin) ### Klotho (Alpha-Klotho) Low Evidence A naturally occurring longevity hormone (secreted alpha-klotho) being studied for cognition and brain aging; a single low-dose injection improved memory in aged monkeys, and a first-in-human Phase 1 trial in older adults is underway. [Cognition](/benefits/cognition)[Neuroprotection](/benefits/neuroprotection)[Anti-Aging](/benefits/anti-aging)[Longevity](/benefits/longevity)+1 more [View Details](/peptides/klotho) [\+ Compare](/compare?select=klotho)[](https://app.peptrackerpro.com/?add=klotho) ### MOTS-c Low Evidence A mitochondrial-derived peptide studied for metabolic regulation, exercise mimetic effects, and longevity. [Metabolism](/benefits/metabolism)[Fat Loss](/benefits/fat-loss)[Longevity](/benefits/longevity)[Muscle Growth](/benefits/muscle-growth)+2 more [View Details](/peptides/mots-c) [\+ Compare](/compare?select=mots-c)[](https://app.peptrackerpro.com/?add=mots-c) ### SS-31 High Evidence A mitochondria-targeted peptide FDA-approved as FORZINITY (elamipretide) for Barth syndrome in September 2025 — the first FDA-approved mitochondrial-targeted therapeutic. [Longevity](/benefits/longevity)[Anti-Aging](/benefits/anti-aging)[Recovery](/benefits/recovery)[Neuroprotection](/benefits/neuroprotection) [View Details](/peptides/ss-31) [\+ Compare](/compare?select=ss-31)[](https://app.peptrackerpro.com/?add=ss-31) ### Thymosin Alpha-1 High Evidence A thymic peptide approved in some countries for immune modulation, studied for viral infections and cancer adjunct therapy. [Immune Support](/benefits/immune-support)[Longevity](/benefits/longevity)[Inflammation](/benefits/inflammation) [View Details](/peptides/thymosin-alpha-1) [\+ Compare](/compare?select=thymosin-alpha-1)[](https://app.peptrackerpro.com/?add=thymosin-alpha-1) [PepTracker Pro](/) Educational peptide information and research tracking tools. Not medical advice. #### Explore - [Peptide Directory](/peptides) - [Compare Peptides](/compare) - [Glossary](/glossary) - [Benefits](/benefits/sleep) #### Learn - [Blog](/blog) - [Calculators](/calculators) - [Start Here](/start) - [About](/about) #### Legal - [Editorial Policy](/editorial-policy) - [Research Disclaimer](/research-disclaimer) - [Disclaimer](/disclaimer) - [Privacy Policy](/privacy) - [Terms of Service](/terms) - [Contact](/contact) © 2026 PepTracker Pro. Educational purposes only. Not medical advice. Always consult a licensed healthcare provider.