--- title: "Epithalon | PepTracker Pro" url: https://peptrackerpro.com/peptides/epithalon description: "A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers." lang: en --- Skip to main content **Educational information only.** This site does not provide medical advice. Read full disclaimer (https://peptrackerpro.com/disclaimer) **Research-only content.** This page is for educational purposes and does not constitute medical advice. Read full disclaimer → (https://peptrackerpro.com/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 ## 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: https://peptrackerpro.com/benefits/longevity Anti-Aging: https://peptrackerpro.com/benefits/anti-aging Sleep: https://peptrackerpro.com/benefits/sleep Immune Support: https://peptrackerpro.com/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: https://peptrackerpro.com/compare/epithalon-vs-foxo4-dri Epithalon vs GHK-Cu: https://peptrackerpro.com/compare/epithalon-vs-ghk-cu Epithalon vs Humanin: https://peptrackerpro.com/compare/epithalon-vs-humanin Epithalon vs Klotho (Alpha-Klotho): https://peptrackerpro.com/compare/epithalon-vs-klotho Epithalon vs MOTS-c: https://peptrackerpro.com/compare/epithalon-vs-mots-c Epithalon vs SS-31: https://peptrackerpro.com/compare/epithalon-vs-ss-31 Epithalon vs Thymosin Alpha-1: https://peptrackerpro.com/compare/epithalon-vs-thymosin-alpha-1 ## Calculator Tools Use our research tools to explore dosing and reconstitution data: Reconstitution Calculator: https://peptrackerpro.com/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: https://peptrackerpro.com/peptides ## Related Peptides ### FOXO4-DRI Low Evidence A senolytic peptide designed to selectively clear senescent cells by disrupting FOXO4-p53 interaction. Longevity: https://peptrackerpro.com/benefits/longevity Anti-Aging: https://peptrackerpro.com/benefits/anti-aging Skin: https://peptrackerpro.com/benefits/skin View Details: https://peptrackerpro.com/peptides/foxo4-dri \+ Compare: https://peptrackerpro.com/compare?select=foxo4-dri Track in App: 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 (https://peptrackerpro.com/benefits/skin)Anti-Aging (https://peptrackerpro.com/benefits/anti-aging)Wound Healing (https://peptrackerpro.com/benefits/wound-healing)Hair Growth (https://peptrackerpro.com/benefits/hair-growth)+2 more View Details: https://peptrackerpro.com/peptides/ghk-cu \+ Compare: https://peptrackerpro.com/compare?select=ghk-cu Track in App: 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 (https://peptrackerpro.com/benefits/longevity)Anti-Aging (https://peptrackerpro.com/benefits/anti-aging)Neuroprotection (https://peptrackerpro.com/benefits/neuroprotection)Metabolism (https://peptrackerpro.com/benefits/metabolism)+1 more View Details: https://peptrackerpro.com/peptides/humanin \+ Compare: https://peptrackerpro.com/compare?select=humanin Track in App: 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: https://peptrackerpro.com/benefits/cognition Neuroprotection: https://peptrackerpro.com/benefits/neuroprotection Anti-Aging: https://peptrackerpro.com/benefits/anti-aging Longevity: https://peptrackerpro.com/benefits/longevity View Details: https://peptrackerpro.com/peptides/klotho \+ Compare: https://peptrackerpro.com/compare?select=klotho Track in App: https://app.peptrackerpro.com/?add=klotho ### MOTS-c Low Evidence A mitochondrial-derived peptide studied for metabolic regulation, exercise mimetic effects, and longevity. Metabolism (https://peptrackerpro.com/benefits/metabolism)Fat Loss (https://peptrackerpro.com/benefits/fat-loss)Longevity (https://peptrackerpro.com/benefits/longevity)Muscle Growth (https://peptrackerpro.com/benefits/muscle-growth)+2 more View Details: https://peptrackerpro.com/peptides/mots-c \+ Compare: https://peptrackerpro.com/compare?select=mots-c Track in App: 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: https://peptrackerpro.com/benefits/longevity Anti-Aging: https://peptrackerpro.com/benefits/anti-aging Recovery: https://peptrackerpro.com/benefits/recovery Neuroprotection: https://peptrackerpro.com/benefits/neuroprotection View Details: https://peptrackerpro.com/peptides/ss-31 \+ Compare: https://peptrackerpro.com/compare?select=ss-31 Track in App: 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: https://peptrackerpro.com/benefits/immune-support Longevity: https://peptrackerpro.com/benefits/longevity Inflammation: https://peptrackerpro.com/benefits/inflammation View Details: https://peptrackerpro.com/peptides/thymosin-alpha-1 \+ Compare: https://peptrackerpro.com/compare?select=thymosin-alpha-1 Track in App: https://app.peptrackerpro.com/?add=thymosin-alpha-1 ## Structured data ```json [ { "@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. 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