Compound Library

Peptide / Immune

Thymalin (Thymogen Extended)

Thymus-derived polypeptide bioregulator. Restores thymic function and T-cell production. Enhances innate and adaptive immunity. Anti-aging — thymic involution begins at puberty and accelerates with age. Part of Khavinson's peptide bioregulator system with 30+ years of Russian clinical data.

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Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.
Reference dose10–20 mg SubQ daily for 10 days. Repeat every 3–6 months.
Half-life4 hours
Risk flaglow
Regulatory noteResearch-only flag

Side effects and watch-outs

  • Generally extremely well tolerated
  • Injection site reaction
  • Mild temperature elevation (immune activation)
  • Transient fatigue on first 1–2 days
  • No significant toxicity in long-term Russian clinical studies