Careful steroid selection and reasonable dosing are usually regarded as the most basic and reliable methods for preventing its onset. Many steroid users also frequently take some form of estrogen maintenance medication, which may effectively counter the effects of elevated estrogenicity. Common options include aromatase inhibitors such as anastrozole. The use of a PCT program at the conclusion of steroid administration (which usually includes several weeks of anti-estrogen use) is also commonly advised, as gynecomastia is sometimes reported in the post-cycle hormone imbalance phase when steroids are not actually being taken.
Anavar & Primobolan note: These are two of the most commonly counterfeited steroids on the market. Any anabolic steroid can be counterfeited, but as these are two of the most sought after, counterfeiting is a bit more common. Their high demand further increases the cost of these two steroids, and if purchasing a counterfeit that can make it even more disappointing. It is not uncommon for Anavar to be low dosed Dianabol and for Primobolan to be nothing more than testosterone as Dianabol and Testosterone are two of the cheapest steroids to make.