Chlorodehydromethyltestosterone vs Testosterone Undecanoate
A side-by-side research comparison of Chlorodehydromethyltestosterone and Testosterone Undecanoate across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Chlorodehydromethyltestosterone | Testosterone Undecanoate |
|---|---|---|
| Full name | Chlorodehydromethyltestosterone (Turinabol / Tbol) | Testosterone Undecanoate (Ultra-Long Ester) |
| Category | Anabolic Steroids | Anabolic Steroids |
| Status | Not medically approved (controlled substance) | FDA-approved drug (controlled substance) |
| Mechanism | A structural blend of Dianabol and clostebol, this 17aa oral does not aromatize, so it produces dry, lean gains without estrogenic water retention. It has moderate anabolic and low androgenic activity. | The large undecanoate ester dramatically slows release, giving weeks-long duration from a single injection. Oral undecanoate is absorbed via the lymphatic system, partly bypassing first-pass liver metabolism. |
| Molecular weight | 334.9 Da | 456.7 Da |
| Half-life | ~16 hours | ~20-34 days (injection depot) |
| Bioavailability | Oral | Deep IM injection or oral (lymphatic absorption) |
| Typical dose | Lean-gain cycles (non-medical) | Injection every ~10-14 weeks (medical); oral 2x daily with food |
| Frequency | Daily | Infrequent (injection) or twice daily (oral) |
| Route | Oral tablet | Deep intramuscular injection or oral |
Chlorodehydromethyltestosterone reported benefits
- Lean, dry gains
- No water retention
- No aromatization
- Smoother than Dianabol
- Strength gains
Testosterone Undecanoate reported benefits
- Very infrequent injections (convenience)
- Stable long-term testosterone (medical)
- Oral option avoids most liver toxicity
- Restores testosterone in deficiency
Related comparisons
Research and educational reference only. Not medical advice.