Active substance: Methyltestosterone
Active life: 3-4 hours
Detection time: 4-6 weeks

Methyltestosterone is an orally active synthetic androgen derived from testosterone, used primarily to treat testosterone deficiency in men and certain breast disorders in women. In bodybuilding, it is known for its fast-acting strength and aggression boost, often used at the start of a cycle to provide an early anabolic effect.

Due to its high androgenic potency, it promotes rapid strength gains, increased aggression, and muscle fullness, but it also carries a higher risk of estrogenic and hepatotoxic side effects compared to other compounds. Its oral bioavailability is enabled by 17-alpha alkylation, which makes it liver toxic, limiting its safe usage duration.

Because of its short half-life (around 3–4 hours), it is typically taken multiple times daily, and its detection time can last several weeks after cessation.

How to use:
Typical dosage ranges from 10mg to 50mg per day, with most users opting for a dose of 20mg to 30mg per day. The daily dosage is generally split into multiple smaller doses throughout the day to maintain stable blood levels. This compound is taken orally and should be used for short cycles of around 4 to 6 weeks, due to its liver toxicity.