Epithalon and the Khavinson Bioregulator Family: 2026 Research Overview

TL;DR. The Khavinson bioregulator family is a series of short peptides (typically 2-4 residues) originally isolated from bovine tissues by Prof. Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology. Each peptide targets a specific tissue and modulates gene expression through direct DNA binding. Epithalon (Ala-Glu-Asp-Gly) is the pineal-tissue-targeted member and the most extensively researched of the family in 2026.

The Khavinson family at a glance

The mechanistic hypothesis (Khavinson 2020, extended 2024): short peptides diffuse through the cell membrane, bind specific DNA sequences in histone-free promoter regions, and modulate transcription of tissue-specific genes.

Epithalon (AEDG), the most-researched member

Epithalon has been studied in:

• Telomerase-activation models, published data on TERT gene-expression induction in cultured cells
• Pineal-gland / melatonin research, circadian-rhythm normalisation in aged rodent models
• Longevity models, lifespan extension in fruit-fly and rodent studies (published across multiple Russian and Chinese labs)
• Retinal-degeneration models, protection against senescent-retinal-cell apoptosis

Typical published dose range (rodent research): 0.1-5 mg/kg per subcutaneous administration, 10-20 day protocols.

Storage and reconstitution

All Khavinson peptides are supplied as lyophilised powder. Standard properties:

• 24-month shelf life at -20 °C
• Highly water-soluble (short peptides, 4 residues)
• Reconstitute in 1-2 mL bacteriostatic water; 30-day stability at 2-8 °C

CoA requirements

Short peptides (2-4 residues) present specific CoA challenges:

• HPLC method, need a suitable column for very short peptides (typically C18 with acidic mobile phase)
• MS identity, theoretical masses are low (Epithalon = 390 Da). Use MALDI-TOF or high-resolution ESI-MS.
• Purity threshold, ≥ 99% achievable and expected for institutional buyers

Bulk sourcing considerations

The Khavinson family has strong manufacturing capacity in EU + Russian supply chains. For institutional buyers:

• EU-based suppliers offer the fastest intra-EU + Middle East logistics
• RU-anchored suppliers offer the deepest catalog breadth (including less common members like Cortagen, Vezugen)
• Verify the sequence on the CoA matches the compound name, some vendors ship generic "bioregulator complexes" without sequence-level identity

Working with Penlab Peptide

Penlab supplies Epithalon, Thymalin, Vilon, and the wider Khavinson bioregulator family with per-batch CoAs (HPLC, MS, Karl-Fischer, LAL). Verified institutional buyers ordering above €50,000/month qualify for tiered bulk discounts. Visit the bulk procurement portal or email sales@penlabpeptide.com.

Products are sold strictly for in-vitro laboratory research (Research Use Only) by KYC-verified institutional buyers.