Winvol 100 (Stanozolol 100 mg/ml)

Winvol 100 (Stanozolol 100 mg/ml) is Evolve Biolabs' high-strength injectable stanozolol, supplied as a 10 ml multi-dose vial. It delivers a full 100 mg per millilitre, bypassing first-pass liver metabolism and doubling the concentration of the classic 50 mg depot.

What Winvol 100 Is

Stanozolol is a non-aromatising anabolic steroid built on a pyrazol ring, resistant to metabolism and unable to convert to oestradiol. The injectable route avoids the first-pass hepatic exposure that the oral tablet necessarily involves. Winvol 100 packs 100 mg per millilitre into a 10 ml vial, for 1,000 mg total, a concentration above the traditional 50 mg/ml Winstrol Depot.

The History of Injectable Stanozolol

Stanozolol was developed by Winthrop Laboratories in the late 1950s and introduced as Winstrol in the early 1960s. The injectable depot followed as a longer-acting alternative to the tablets and became one of the best-known cutting preparations in physique research. Its most famous moment came in 1988, when Ben Johnson's positive test at the Seoul Olympics made stanozolol a permanent reference point in doping history.

How It Works

After intramuscular injection, stanozolol is absorbed from the depot and binds the androgen receptor, promoting protein synthesis without aromatisation. Because the compound is 17-alpha-alkylated, it survives hepatic metabolism when taken orally, but the injectable route avoids first-pass exposure. It is metabolised in the liver and excreted in urine as a set of well-characterised metabolites. The high concentration means a smaller volume carries a given dose, which changes the depot size rather than the pharmacology.

What the Research Shows

• Stanozolol has been studied clinically for anaemia and hereditary angioedema.
• Injectable and oral forms share the same active compound but differ in pharmacokinetics.
• Its non-aromatising pharmacology is well documented.
• Anti-doping research has mapped its urinary metabolites in detail.

Research Context

The main research question with an injectable is release behaviour. Concentration, vehicle and depot size all influence how quickly stanozolol enters circulation, and those variables matter when comparing a 100 mg/ml vial with a 50 mg/ml preparation. Stanozolol's effects on fibrinolytic parameters and C1-esterase inhibitor have been studied clinically, and its metabolites remain a standard target in doping analysis. The injectable form shares that detection profile with the tablets.

Strength, Pack and Authentication

Each millilitre contains 100 mg of stanozolol, for 1,000 mg per 10 ml vial. The vial is filled under controlled conditions, sealed with a colour-coded flip-off cap and packed in a printed, tamper-evident carton stating the compound, strength and volume. A verification code on the packaging can be checked against Evolve Biolabs' records.

Buying Winvol 100 Online

High-strength injectable Winstrol is a popular search category. If you are researching stanozolol injection, comparing 100 mg Winstrol products or looking to buy Winvol 100 online from a verified Evolve Biolabs supplier, this page gives you the full specification, pack size, price and live stock status. Browse more Evolve Biolabs injectables at NotNatty.