Yes, I've used this said product before. May or may not work depending if you are controlling your prolactin on tren 19nor. I cycled tren for to long without controlling prolactin and said product didn't work. Cialis tabs also stopped working. Last time I will ever run a 19nor with out controlling prolactin. (Tren or deca)
If your having issues with your boner, do research, and get some Caber.
Bro, good luck.