Primobolan indeed gives very long lasting muscles of extraordinary quality. However, the results won't be as prominent without a test base. Also, the oral version is very weak, and you will need very high dosages if this steroid. While it is extremely safe to take primo, even in such dosages, it is extremely expensive. Therefore, you will be much better off with the injectable primo, as you will get the same results with smaller amounts of the compound, which will save you money. All in all, primo is a very good steroid - very safe and clean. Yet you need to use it right if you want to make the most efficient use of it.