Primobol 100 (Methenolone Enanthate 100 mg/ml)

Primobol 100 (Methenolone Enanthate 100 mg/ml) is Evolve Biolabs' injectable Primobolan, supplied as ten 1 ml glass ampoules. The slow enanthate ester and 100 mg/ml strength deliver the authentic Primobolan Depot profile in single-use ampoules.

What Primobol 100 Is

Methenolone enanthate is the injectable form of Primobolan, a dihydrotestosterone-derived anabolic steroid with a double bond at carbon one and a methyl group at carbon two. Those modifications make it resistant to metabolism and unable to aromatise. The enanthate ester is long, so the compound is released slowly from an intramuscular depot. Primobol 100 provides 100 mg per millilitre across ten sealed 1 ml glass ampoules.

The History of Primobolan

Schering brought methenolone to market in the early 1960s as Primobolan, offering both an oral acetate and an injectable enanthate. European clinicians used it in wasting, osteoporosis and selected breast-cancer cases. Over time it acquired a reputation for gentleness, and that reputation made it a prime target for counterfeiters, which is why sealed, code-verified packaging carries particular weight with this compound.

How It Works

After intramuscular injection, esterases gradually hydrolyse the enanthate group, releasing free methenolone over roughly one to two weeks. Methenolone binds the androgen receptor and supports nitrogen retention and protein synthesis, but it is not aromatised and has minimal oestrogenic activity. It is metabolised in the liver and excreted mainly in urine. The long ester produces stable levels and a prolonged detection window.

What the Research Shows

• Methenolone was investigated clinically in Europe for wasting and osteoporosis.
• Its low aromatisation and mild androgenic profile are documented.
• Enanthate esters are known to release more slowly than acetate esters.
• Counterfeit prevalence has made analytical verification a research topic in itself.

Research Context

Methenolone's clinical history includes use in women and children, which is unusual for an anabolic steroid and reflects its mild androgenic profile. European studies in the 1960s and 1970s examined it in osteoporosis and wasting. Analytical chemists have identified long-lived metabolites that allow detection weeks after administration, and the compound's status as a frequent counterfeit target has made laboratory verification a recurring theme. Mild effects and a long detection window define its research profile.

Strength, Pack and Authentication

Each ampoule contains 100 mg of methenolone enanthate in 1 ml, and the pack contains ten glass ampoules. The ampoules are sealed 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, and the single-use glass format protects each dose until it is opened.

Buying Primobol 100 Online

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