**B12, no this is not a steroid , but many items we add to our cycles are not steroids. As women are also necessarily a bit more limited to what they can use, we have to find other options. This is not a requirement to this cycle, we are simply providing you with quality options. If B12 is used, it is highly recommended that you choose injectable B12, specifically Methylcobalamin as it is by far the most effective. This will provide a massive boost of energy to your training and greatly improve recovery, which is the most important factor.
The Mesterolone hormone is not estrogenic. It does not aromatize and it carries no progestin nature. As a result, the side effects of Proviron will not include any related effects such as gynecomastia or excess water retention. Such adverse effects are impossible with this steroid. This will also greatly reduce the risk of high blood pressure as high blood pressure associated with anabolic steroid use is often due to extreme water retention. In fact, Proviron should provide an anti-estrogenic effect by preventing testosterone to estrogen conversion or at least tremendously slow it down.