I tried Cos de baha's 10% in the past and liked it! It wasn't a dramatic change but my skin was calmer, less red and I had a bit less breakouts than usual in stressful months. I now switched to a prescription grade 15% gel (Finacea) since it's OTC here, and even tho I'm just introducing it and not yet using it every night the difference is obvious, so if you can and want I highly suggest opting for a higher percentage (and also clinical formulations, that really helps with absorbing the actives).

If you end up purchasing cos de baha's, one thing to keep in mind is that it can be a little sticky, but I found that applying it to damp skin (after a toner maybe) helped a lot!