I've been using Rapid Lash for years, I think it's the best out there. The thing with it is that once you get your lashes to where you want them, you should stop using it every day. Maybe a couple times a week, something like that. Also, if you stop using it for any period of time your lashes will go back to where they were originally pretty quickly. It has a bit of a learning curve to it, it was trial and error for me, but my lashes have been long and thick now for about two years since I got the system down, lol.