This information is for research and educational purposes only. No medical recommendations. Products are not approved for human use. For health questions, consult a doctor.

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Muscle & performance

Dianabol Oil (Methandrostenolone)

A classic C17-alpha-alkylated anabolic steroid with strong anabolic and androgenic effects, in oil form for injections.

2 min read 1 sources Titration Updated June 2026
Class
Anabolic Steroid (C17-alpha-alkylated)
Use
Research compound; classic steroid
Half-life
4-6 hours (oil depot prolongs effect)
Status
WADA banned; controlled substance

Getting started

Typical dosing (research context)

Values per day in mg. Dianabol oil: intramuscular, daily or every-other-day; half-life approximately 4-6 hours (but longer as depot in oil).

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What is Dianabol Oil?

Dianabol (methandrostenolone) is one of the oldest and most classic anabolic steroids, first synthesized in 1956. The injectable oil form is used to achieve faster and more potent effects than the oral variant. The C17-alpha alkylation enables stomach acid protection for oral administration but makes the oil version hepatotoxic.

Dianabol oil is injected intramuscularly as a depot formulation, slowly releasing the steroid over time and extending the short half-life of free methandrostenolone.

This information is for research and educational purposes only. No medical advice.

How it works

Dianabol works primarily through androgen receptor activation and shows moderate aromatization to estrogen. Its anabolic:androgenic ratio is often described as 90-210:40-60 (i.e., strong anabolic, moderate androgenic activity).

  • Protein biosynthesis strongly enhanced - rapid muscle gain
  • Nitrogen retention and phosphate retention increased
  • Aromatization to estrogen prominent - estrogenic side effects likely
  • Strong HPG axis suppression - endogenous testosterone production suppressed
  • Glycogenic effects - muscle glycogen storage improved

Application and dosing

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What the research shows

Dianabol is the most well-studied anabolic steroid with classic studies from the 1960s. Findings show:

  • Significant lean mass gain in 4-6 weeks (often 4-7 kg in studies)
  • Strength gains documented parallel to lean mass increase
  • Both estrogenic and androgenic side effects prominent
  • Hepatic effects: Liver enzymes (ALT, AST, GGT) elevated - reversible upon cessation
  • Return to baseline after cessation relatively quick due to short half-life

Side effects

Dianabol has a well-known side effect profile with both estrogenic and androgenic components.

  • Estrogenic: Gynecomastia, fluid retention, blood pressure elevation
  • Androgenic: Acne, alopecia (in genetically susceptible individuals), facial/scalp oiliness
  • Hepatic: C17-alpha alkylation makes hepatotoxicity likely - liver function should be monitored
  • Cardiovascular: Blood pressure elevation (through fluid retention), LDL cholesterol increase, HDL reduction
  • HPG axis: Testosterone decline, testicular atrophy possible
  • Psychiatric: Mood swings, aggression (in rare cases)
  • Other: Headaches, nausea, gastrointestinal upset

Storage

Dianabol oil must be stored at room temperature, protected from light.

  • Temperature: 15-25°C ideal
  • Light: Store in dark (original vials or amber glass)
  • Moisture: Keep dry
  • Shelf life: 2-3 years stable with proper storage
  • Note: Oil-based steroids are more robust than water suspensions; crystallization rare

Practice

PCT / after coming off

Anabolic substances suppress the body's own testosterone production in the research context. Anyone who comes off a cycle (rather than running it continuously) typically uses a post-cycle therapy (PCT) to restart the natural axis (HPTA).

The standard scheme in the research/literature context combines a SERM (tamoxifen and/or clomifene, alternatively enclomiphene) over roughly four weeks, optionally preceded by HCG to re-sensitise the testes before the SERM block. An aromatase inhibitor (anastrozole/exemestane) belongs more to on-cycle estrogen control than to the PCT itself.

Tip: order the PCT items together with the cycle so they are already on hand when you come off.

This information serves research and educational purposes only. Not medical advice.

Evidence

Sources

  1. 1 Methandrostenolone Effects on Lean Body Mass and Strength. Journal of Applied Physiology

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