Turinabol
Also known as: Tbol, Oral Turinabol, 4-Chlorodehydromethyltestosterone, Chlorodehydromethyltestosterone
Lower numbers = closer to natural. Higher numbers = more enhanced.
Why this rating?
Turinabol has moderate anabolic potency (anabolic:androgenic ratio of 54:6) and was specifically designed by East German scientists for undetected athletic enhancement. While milder than Dianabol with no water retention, it still provides performance gains impossible naturally, evidenced by the systematic doping of thousands of East German Olympic athletes. The lean, quality gains it produces place users clearly above natural potential.
Overview
A "cleaner" oral version of Dianabol that does not cause water retention. Developed by East German scientists for their Olympic athletes, providing lean mass and performance enhancement without detection.
Important Warnings
- •Do NOT stack with another 17-alpha-alkylated oral at full dose. Combined liver strain
- •Long-term metabolites are detectable in urine for months, unsuitable for tested athletes
Purpose & Use Cases
Lean Mass
Provides quality lean muscle gains without the water retention of Dianabol.
Athletic Performance
Increases strength and endurance without adding water weight that could affect weight classes.
Oral Bridge
Can be used as an oral kickstart or finisher in a cycle.
Benefits
- Lean muscle gains without water retention
- No estrogen conversion
- Increased strength and endurance
- Good for athletes in weight-class sports
- Milder than Dianabol
- Quality gains that are easier to maintain
Good to Know
No aromatization: the "clean Dbol"
The 4-chloro group blocks aromatization, so Turinabol gives lean, dry gains with no estrogenic bloat or gyno and no AI needed. That is the whole point versus Dianabol, at the cost of slower, smaller gains.
Still 17-alpha-alkylated: liver and cycle length matter
Turinabol is hepatotoxic (milder than Dbol/Anadrol but real). Keep runs to 6-8 weeks, use TUDCA/NAC, avoid alcohol, and do not stack it with another 17aa oral.
Infamous long-detection metabolites
Turinabol produces long-term metabolites (LTMs) detectable in urine for many months, improved testing retroactively caught numerous athletes, echoing its East German state-doping origins. A poor choice for anyone tested.
Not a DHT-derivative: low hair risk, finasteride largely irrelevant
Because it is only weakly androgenic and not meaningfully 5-alpha-reduced, hair loss risk is lower than most orals and finasteride does little for it either way.
Dosage Guidelines
| Experience Level | Dosage Range |
|---|---|
| Beginner | 30 – 40 mg/day |
| Intermediate | 40 – 60 mg/day |
| Advanced | 60 – 100 mg/day |
Almost always paired with a testosterone base to offset suppression, since Tbol itself does not raise testosterone. Advanced/competitive users sometimes push toward 80-100mg/day for short 4-6 week bursts, but liver strain rises meaningfully above ~60mg/day. Female doses run far lower (roughly 5-10mg/day) due to virilization risk. Also popular with weight-class athletes who need performance without the water-weight gain of Dianabol.
Side Effects
Liver Strain
commonHepatotoxic as a 17-alpha-alkylated oral, though milder than many orals.
TUDCA/NAC supplementation; limit cycle length.
Testosterone Suppression
very commonSuppresses natural testosterone production.
Run with testosterone base; proper PCT required.
Lipid Disruption
commonNegative impact on cholesterol levels.
Omega-3s; regular cardio; monitor bloodwork.
General Mitigation Strategies
Liver support supplements (TUDCA, NAC). Standard PCT after cycle. Monitor liver values and lipids with bloodwork.
Support Supplements
Ancillary supplements commonly run alongside Turinabol to manage side effects, support the target tissue, or fill nutrient demands it creates.
Liver support (TUDCA + NAC)
KeyTurinabol is 17-alpha-alkylated and hepatotoxic (milder than Dbol/Anadrol, but real). TUDCA supports bile flow; NAC replenishes hepatic glutathione. Support, not a licence to extend the cycle.
- Dose
- TUDCA 500-1,000mg/day; NAC 600-1,200mg/day
- Timing
- Through the oral cycle
Lipid support (omega-3 + citrus bergamot)
Like all oral steroids it drags HDL down and raises LDL. Omega-3 helps triglycerides; citrus bergamot lowers LDL via statin-like flavonoids.
- Dose
- Omega-3 2-4 g/day; citrus bergamot 500-1,000 mg/day
- Timing
- With meals
Post Cycle Therapy (PCT)
Standard PCT required after cycle. Can begin 1-2 days after last dose.
How It Works
A chlorinated version of Dianabol that cannot aromatize to estrogen. Provides moderate anabolic effects with low androgenic activity. Increases protein synthesis and nitrogen retention without water bloat.
Hormonal & Androgenic Profile
~54:6 vs. a 100:100 methyltestosterone reference: a strong anabolic-to-androgenic dissociation. This classic rat-bioassay-style figure is widely cited across steroid-profile/community sources but is not a formal clinical measurement.
Does not aromatize, no AI needed, and no estrogenic bloat or gyno risk. This is why its gains are lean and dry.
A chlorinated testosterone/Dianabol derivative, not a DHT-derivative; it is not meaningfully 5-alpha-reduced and is only weakly androgenic, so finasteride has little relevance. Hair risk is lower than most orals but not zero.
Lowers HDL and raises LDL as an oral, though more moderately than the harshest orals; no estrogenic water retention or added blood pressure from bloat.
Fundamentals
Reference on the practices relevant to Turinabol: how they are done and where they go wrong. Not a recommendation to use it.
Common Stacks
- Turinabol + Testosterone - Clean lean gains
- Turinabol + Testosterone + Primobolan - Quality mass stack
Detection Times
Turinabol produces long-term metabolites (LTMs) with an unusually long detection tail, the reason improved 2000s-era testing retroactively caught East German-era and other historical samples. A 2021 controlled single 5mg dose study (Loke et al., J Steroid Biochem Mol Biol) found LTMs detectable for roughly 10-45 days depending on the specific metabolite and individual. Real-world multi-week cycles at typical PED doses involve far higher cumulative exposure, and enthusiast/community steroid profiles commonly cite detection extending to around 11-12 months for actual users, that longer figure is not from a controlled dosing study and should be treated as an approximate, community-derived upper estimate rather than a guaranteed window.
Legal Status
Schedule III controlled substance (USA).
Legal status varies by country and changes over time. This is a general summary, not legal advice.
WADA Status
Chlorodehydromethyltestosterone (Oral Turinabol) is explicitly prohibited. Infamous as the flagship compound of the East German state doping program ("State Plan 14.25"), administered to an estimated 10,000 athletes from the late 1960s through 1989.
References
- Chlorodehydromethyltestosterone (Oral Turinabol) - Wikipedia
- Anabolic Androgenic Steroids - LiverTox (NCBI)
- Schumann W (1991) - The pharmacokinetics of Oral-Turinabol in humans - PubMed
- Loke et al. (2021) - Controlled administration of dehydrochloromethyltestosterone in humans: urinary excretion and long-term detection of metabolites for anti-doping purpose - PubMed