STROMUSC Turinabol 25mg For Bodybuilding CAS:2446-23-3
Turinabol, chemically designated as 4-chloro-17α-methyl-17β-hydroxyandrosta-1,4-dien-3-one, is a synthetic anabolic-androgenic steroid (AAS) derived from a hybrid structure of methandrostenolone (Dianabol) and clostebol. Developed in 1962 by Jenapharm, an East German pharmaceutical company, its primary historical use was in state-sponsored athletic programs to enhance performance discreetly.
Introduction to Turinabol: Origins and Evolution
Turinabol, chemically designated as 4-chloro-17α-methyl-17β-hydroxyandrosta-1,4-dien-3-one, is a synthetic anabolic-androgenic steroid (AAS) derived from a hybrid structure of methandrostenolone (Dianabol) and clostebol. Developed in 1962 by Jenapharm, an East German pharmaceutical company, its primary historical use was in state-sponsored athletic programs to enhance performance discreetly. Unlike its parent compounds, Turinabol was engineered to minimize estrogenic effects while preserving anabolic potency, making it a unique agent in the AAS landscape. Its clandestine adoption by athletes during the Cold War era underscores its reputation for promoting lean, "dry" gains-a trait highly valued in modern bodybuilding.
Chemical and Pharmacological Features
Turinabol's molecular structure introduces two critical modifications:
●Chlorine Substitution at C4: This alteration blocks aromatization (conversion to estrogen), eliminating water retention and gynecomastia risks.
●17α-Methyl Group: Enhances oral bioavailability but introduces hepatotoxicity, albeit milder than other 17α-alkylated steroids.
Key Pharmacokinetics:
●Half-Life: ~16 hours, necessitating once or twice daily dosing.
●Anabolic:Androgenic Ratio: 54:6, favoring muscle growth over virilization.
●Protein Binding: Low affinity for sex hormone-binding globulin (SHBG), increasing free testosterone availability.
This profile positions Turinabol as a versatile, moderate-strength steroid suited for both bulking and cutting, depending on caloric intake and ancillary compounds.
Applications in Bodybuilding: Beyond Conventional Use
While Turinabol is often labeled a "mild" steroid, its applications are nuanced:
1.Lean Mass Accretion:
●Unlike Dianabol, Turinabol avoids subcutaneous fluid retention, yielding quality muscle detectable under stricter definitions (e.g., DEXA scans).
●Synergizes with testosterone enanthate for a "clean bulk," adding 4–6 lbs of lean tissue over 8 weeks at 25mg/day.
2.Pre-Contest Cutting:
●Preserves muscle during caloric deficits via anti-catabolic mechanisms (inhibition of glucocorticoids).
●Enhances vascularity through nitrogen retention without spillover into extracellular water.
3.Strength Optimization:
●Increases phosphocreatine resynthesis, benefiting explosive lifts (e.g., powerlifting).
●Unlike trenbolone, it lacks CNS overstimulation, reducing aggression-related side effects.
4.Endurance Enhancement:
●Elevates red blood cell count marginally (less than EQ or boldenone), aiding high-volume training.
Benefits: A Double-Edged Sword
Turinabol's advantages are context-dependent:
●Pros:
○No Estrogenic Side Effects: Ideal for estrogen-sensitive users.
○Low Androgenicity: Reduced acne, hair loss, or prostate issues compared to trenbolone.
○Hepatic Tolerance: Safer short-term use (≤8 weeks) vs. methyltrienolone.
●Cons:
○Subtle Gains: Requires precise diet/training to manifest results.
○Lipidotoxicity: Suppresses HDL cholesterol by 20–30%, demanding cardiovascular monitoring.
○Suppression Axis: HPTA shutdown occurs even at 25mg/day, necessitating post-cycle therapy (PCT).
Dosage Protocols: Precision Over Excess
Turinabol's efficacy plateaus at moderate doses due to receptor saturation:
●Beginner: 15–25mg/day for 6 weeks (split into AM/PM doses).
●Intermediate: 30–40mg/day stacked with 300mg testosterone/week.
●Advanced: 50mg/day (max) pulsed in 2-week intervals to mitigate liver strain.
Gender-Specific Notes:
●Female athletes rarely exceed 5–10mg/day to avoid virilization (voice deepening, clitoromegaly).
Cycle Architecture: Timing and Synergy
Sample 8-Week Cutting Cycle:
●Weeks 1–8: Turinabol 25mg/day + Testosterone Propionate 350mg/week.
●Weeks 9–12: PCT with tamoxifen (40mg/day tapering to 20mg) + hCG 500IU EOD.
Bulking Variant:
●Weeks 1–6: Turinabol 30mg/day + Nandrolone Decanoate 400mg/week.
●Support Supplements: TUDCA (500mg/day), omega-3s, and coenzyme Q10.
Post-Cycle Therapy (PCT): Mitigating Suppression
Turinabol's 16-hour half-life allows prompt PCT initiation 24–48 hours post-cycle:
●hCG Blast (10 days): 1000IU EOD to restart Leydig cell function.
●SERM Protocol: Clomiphene (50mg/day) + tamoxifen (20mg/day) for 4 weeks.
●Natural Recovery: Expect 6–12 weeks for endogenous testosterone normalization.
Risk Mitigation and Controversies
●Hepatotoxicity: Transaminase elevations resolve post-cycle, but avoid alcohol/Tylenol.
●Cardiometabolic Monitoring: Lipid panels pre-/mid-cycle are non-negotiable.
●Legality: Schedule III (US), Class C (UK)-possession risks legal repercussions.
Novel Insights: Turinabol in the Genomic Era
Emerging research highlights Turinabol's epigenetic effects:
●Myostatin Inhibition: Downregulates this growth-limiting protein, potentiating hypertrophy.
●Collagen Synthesis: Weak tendon support vs. oxandrolone-caution in injury-prone athletes.
Clinical Data
|
Brand |
STROMUSC |
|
Trade names |
Oral Turinabol,4-Chlordehydromethyltestosterone |
|
CAS |
2446-23-3 |
|
Molar mass |
334.88 |
|
Formula |
C20H27ClO2 |
|
Purity |
Above 98% |
|
Apprarance |
25mg*100 |
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Conclusion: Turinabol's Niche in Modern Bodybuilding
Turinabol remains a niche agent for athletes prioritizing lean tissue accretion with minimized side effects. Its historical intrigue and pharmacokinetic subtlety demand informed, disciplined use. While not a "mass monster," its role in precision-driven physique enhancement endures-a testament to its Cold War legacy.
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