This was my first ever BHA product and honestly.......it really is worth the hype that's everywhere. At the start, it didn't seem like there was much of a difference, and in fact, my skin seemed worst but that's all part of the purging process! Now my face is sooooo smooth and shiny like the skin I always see on other people and envy. Hahaha this sounds like a late-night advert but it's all true for me at least. Also, my skin isn't very sensitive so I went straight to putting it all over my face daily, but it is recommended that you patch test and start off maybe once weekly.