Methyl Testosterone 25 mg

• Methyltestosterone 25 mg
• Brand: Magnus Pharmaceuticals
• Content: 50 tablets | 25 mg per tablet
• Manufactured in: Europe

Product Overview

Methyltestosterone 25 mg provides a fast-acting, 17--alkylated analog of testosterone used in research for strength-gain modeling, anabolic signalling, and androgen–estrogen conversion studies.

Its oral bioavailability (~70%) allows precise molar dosing in non-injectable studies, while a short elimination half-life (~3 h) supports high-resolution pharmacokinetic tracking. Readily aromatising, it serves as a comparative compound in pure-androgen vs. mixed-hormone pathway exploration.

Key Research Highlights

High anabolic potential: In-vitro binding at ~45% of DHT affinity (2 testosterone), supporting strong protein-synthesis models

Rapid strength and mass gain: 15 mg/day for 6 weeks outperforms placebo in body-weight and leg-press trials

Androgen–estrogen contrast: Aromatisation enables side-by-side comparison of fluid-retention and gynecomastia pathways

Efficient oral dosing: Despite hepatic metabolism, 70% oral bioavailability ensures reliable delivery

Short half-life: 3 h clearance allows frequent sampling and detailed PK/PD curve analysis

WADA classification: Listed as an S1 anabolic agent; long-term urinary metabolites detectable for over 6 days

Suggested Laboratory Applications

Strength-enhancement and lean-mass growth research

Post-androgen receptor response studies

Estrogen conversion and fluid-retention modeling

Hepatotoxicity and lipid profile alteration experiments

Anti-doping detection model validation

Technical Specifications

Documented Benefits

Muscle strength, nitrogen retention, lean mass

Main Risks

Hepatotoxicity, cholestatic jaundice, gynecomastia, lipid shifts, acne

Total Active Compound

1,250 mg per carton (25 mg 50 tablets)

Shelf-life

36 months (manufacturer specification)

Detection Window

> 6 days (urinary 17-epi metabolites)

PubChem-Supported Research Insights

Demonstrates significant androgen-receptor activity in vitro

Boosts muscle gain and strength in dose-dependent trials

Enhances nitrogen retention and glycogen utilization in lab models

A useful reference in comparing androgenic vs. estrogenic outcomes

Documented Research Side Effects

Cholestatic jaundice and hepatocellular stress at 4 weeks

Dyslipidaemia (HDL / LDL), water retention, hypertension

Acne and gynecomastia from aromatised pathways

Positive doping tests from long-term 17-epi metabolites

Handling & Compliance

For Research Use Only — Not for human or veterinary useStore at 25°C, protected from light and moisturePurchase confirms qualified researcher statusWADA-listed substance — exposure triggers positive doping test