In the largest (1996) reanalysis of previous studies of hormonal contraceptives and breast cancer risk, less than 1% were POP users. Current or recent POP users had a slightly increased relative risk (RR ) of breast cancer diagnosis that just missed being statistically significant. The relative risk was similar to that found for current or recent COCP users (RR ), and, as with COCPs, the increased relative risk decreased over time after stopping, vanished after 10 years, and was consistent with being due to earlier diagnosis or promoting the growth of a preexisting cancer.  
Anabolic steroid implants are allowed for veterinary use. But if someone diverts this for use in humans, it will be deemed as a distribution of a Schedule III drug leading to prosecution. The law on trenbolone differs in other countries. For instance, in Canada it is a Schedule IV drug. In Canada, all anabolic steroids are classified as Schedule IV drugs. In the UK, anabolic steroids are classified as Class C substances. Their possession can lead to a 2 year jail term, while their production and supply can lead to a 14 year jail term. But many countries do not have strict laws. In some places, you can even buy it over the counter.
The truth is simple; there is no steroid like Trenbolone and while it may carry some potential adverse effects many men will supplement with no problem at all. You will find no steroid to pack such a punch on its own; in-fact, there are very few combinations and stacks that can be as potent as the Trenbolone hormone is on its own. For bulking and cutting this steroid has no equal and when combined with testosterone as it should be, if for no other reason than your health it is a hormone that cannot be beat safely making Trenbolonethe greatest anabolic androgenic steroid of all time.