Provironos 50 - Pharmacom Labs

Mesterolone, marketed as Proviron®, is a synthetic androgen developed by Schering in 1934. It is a non-aromatizable oral androgen that resembles dihydrotestosterone (DHT) but has a very low anabolic effect due to rapid conversion to inactive metabolites in muscle tissue. Despite its weak anabolic properties, mesterolone is widely used to increase androgen levels during cutting cycles, enhance muscle hardness, and reduce estrogenic side effects by binding to SHBG, freeing up other steroids. It is also utilized in some cases to support male fertility without significant testosterone suppression .

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