There are good and not so good products on the market. I'd say one of the best ones I've come across yet is what our sponsor is selling, N2Generate.
But yes the ones that have decent amounts of those effective herbs and ingredients will work but don't have your expectations too high because the name can be somewhat misleading.
What I mean by that they won't shoot your test levels beyond normal physiological levels and unless you have very low t or just suffer from symptoms of low t in general you might not experience that drastic of a difference in your mood, energy and all those things.