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

Stanozolol Oil - Research Substance

Oily injection solution of the synthetic anabolic stanozolol (Winstrol), used in research contexts.

1 min read 0 sources Titration Updated June 2026
Class
DHT-derived synthetic anabolic steroid
Use
Research substance; non-clinical
Half-life
Approx. 24-36 hours
Status
WADA banned since 1976; not approved

Getting started

Typical dosing (research context)

Values per week in mg. Stanozolol Oil available in 50 mg/ml and 100 mg/ml concentrations.

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What is Stanozolol Oil?

Stanozolol Oil is a sterile oily injection solution of stanozolol, a synthetic C-17 alkylated anabolic steroid derived from DHT. It is known under various trade names, including Winstrol and Stromba, and is on the WADA doping list. The oily formulation allows intramuscular injection for research purposes.

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

How it works

Stanozolol binds to the androgen receptor with moderate to high affinity. Unlike many other anabolics, it is weakly aromatizable and promotes 'dry' muscle gain with minimal water retention.

  • DHT-like androgen receptor activity
  • Weakly aromatizable (minimal estrogen conversion)
  • Promotes protein synthesis and nitrogen retention
  • HPTA suppression

Use and dosing

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What the research shows

Stanozolol is better documented than newer anabolics. Studies in humans show anabolic effects with selective muscle gain and minimal water retention. Negative effects on the lipid profile (HDL reduction) are well documented. HPTA suppression occurs at clinically relevant doses.

  • Well-documented anabolic effects
  • Lipid dysregulation (especially HDL reduction)
  • Minimal estrogen-dependent side effects
  • HPTA suppression confirmed

Side effects

Stanozolol is associated with several significant side effects:

  • Unfavorable lipid profile (LDL increase, HDL decrease)
  • Hepatotoxicity from C-17 alkylation
  • Joint pain (paradoxically despite muscle gain)
  • HPTA suppression and testosterone decline
  • Androgenization effects (acne, hair loss)
  • Muscle tension and cramp tendency

Storage

Stanozolol Oil is best stored at room temperature, protected from light. A refrigerator is not required and can cause crystallization with this oil.

  • Room temperature (15-25°C)
  • Protected from light and heat
  • Do not refrigerate or freeze
  • Store in tightly sealed container

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

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