Olympus Labs Methylstenbolone (M-Sten) is one of the most powerful and best known prohormones. M-Sten is a powerful lean muscle builder which does not convert to estrogen, so won't cause unwanted water weight to be held. This makes it a great choice for bulking OR cutting cycles.
For best results, cycle M-Sten for 4 weeks (beginner to intermediate) to 6 weeks (advanced). Cycle support is a must with any M-Sten cycle.
Being such a powerful hormonal supplement, you should always follow a cycle of M-Sten with a full PCT. PCT will help restore your natural hormone production and levels to a healthy, normal place while avoiding sides such as changes in mood and libido, also putting you in the best place to hold onto your gains.