Educational reference only. Nothing on this page constitutes medical advice or encourages personal use of this compound. Always consult a qualified healthcare provider before any decision involving your health.

Khavinson Bioregulator Cluster

Khavinson Bioregulator Cluster · Cortexin · Cardiogen · Crystagen · Bronchogen

Animal replicated

BioregulatorBioregulator Tissue-Specific Peptide Peptide Complex

RouteInjectableGray-market only

Evidence grade: Animal replicated

Effect demonstrated in multiple animal studies; human data sparse or extrapolated. Grades summarize evidence quality, not whether a compound is appropriate, legal, or risk-free.

At a glance

What it is: Cortexin • CardioCytogen (Cardiogen) • Crystagen • Bronchogen — Tissue-Specific Bioregulator Peptides — Bioregulator, Tissue-Specific Peptide, Peptide Complex.
Why people use it: Used primarily for cognitive support and longevity and anti-aging.
What the evidence supports: Bronchogen is the Khavinson bioregulator targeted at bronchial and pulmonary epithelial tissue. The AEDL tetrapeptide represents the minimal active sequence identified from pulmonary tissue extracts.

If you only read one thing

Four Organ-Specific Bioregulators from the Russian Khavinson Research Tradition. The Theory That Short Peptides Regulate Gene Expression in a Tissue-Specific Way. Cortexin: A Russian-Approved Neuroprotective Extract with Multi-Receptor Activity. CardioCytogen (Ala-Glu-Asp-Arg): The Cardiac Fibroblast Modulator. Crystagen: Connective Tissue and Cartilage Bioregulator. Bronchogen: Pulmonary Bioregulator Tetrapeptide. The Shared Evidence Architecture That Applies to All Four.

Check interactions →

Route / form

Same compound, route-specific context. Switch forms instead of opening separate pages.

Evidence fit

Route-specific

Use the route notes below to match form, goal, and evidence quality.

Route caveat

Protocol not standardized

No route-matched protocol rows were parsed for this form; use the route notes and full dosing chapter before comparing options.

Protocol anchor

Full dosing section

Open the full report at the dosing chapter for protocol rows, cycle context, and administration notes.

Typical dose snapshot

See route notes

Evidence varies by use case

Evidence reality check

Evidence snapshot

Bronchogen is the Khavinson bioregulator targeted at bronchial and pulmonary epithelial tissue. The AEDL tetrapeptide represents the minimal active sequence identified from pulmonary tissue extracts.

From the chapter quick-reference block.

Risk posture

No major flags listed

Review route-specific cautions before use.

Need the deep dive?

The default page keeps the decision layer visible first: summary, routes, evidence, and risks. Open the full report for mechanisms, chapter sections, citations, updates, and print/share controls.

Alternatives

Compare nearby options

Browse this class Compare 4 side by side →

Khavinson Bioregulators

Same class · Bioregulator

40+ Years of Russian Research. 500+ Publications. One Institution. The Most Concentrated Single-Lab Provenance of Any Compound Class in this reference. Vladimir Khavinson (1946-2024) and the St. Petersburg Institute of Bioregulation and Gerontology. The Epigenetic Chromatin Mechanism. The Cytomax vs Cytogen Distinction. The 6-to-8-Year Mortality Study. The 2025 Independent Replication That Changed the Evidence Conversation. 14 Organ-Specific Bioregulators — Their Sequences, Targets, Evidence, and Protocols.

Epitalon

Same class · Bioregulator

40 Years of Research From One Lab. The Most Cited Telomere Peptide in the Longevity Space. The First Independent Replication Was Published in 2025.

Pinealon

Same class · Bioregulator

Short Khavinson tripeptide positioned for brain and pineal-gland bioregulation. The appeal is cognitive aging, neuroprotection, and circadian support; the limitation is that the evidence is mostly single-institution preclinical work, not human clinical validation.

Check interactions