This is a great sexual health formula with no side effects whatsoever, they also have a smaller bottle icase you want to just try them 1st, its also good as a preworkout. But for that desire you need back this will give it to you, I know I use it. from the 1st time I took it. and I repeat no side effects just go to the site and read up on it you will see. Also a lot of time you may be able to get this buy one get one free so you have to keep checking back.