Currently on 500 test 525 tren 525 mast per week. Only used mast once in the past and it was for 2 months and can't remember if i had same problems. Dont think so. Never had a problem running even higher tren with lower/higher test dose. Libido and erections have always been too strong on tren. The only thing that has changed recently is the addition of mast. Ive always heard mast is good for libido?