yeah if i get a decrease in libido later on i will add some proviron allways worked in past cycles i hate test now get nasty acne sex drive increased a little but was up and down was never constant..plus water retention,anxiety,aggresion,high blood pressure,that was just using 500mg testoviron a week....if i relly have to ill use prop less side effects for a quick sex drive boost if any problems arise......peace.