I really like using these type of sponges, they really do boost the effect of your water based cleansers. Bought this to use with my favorites Heimish All Clean Foam and COSRX Good Morning Cleanser, it seems to be working amazingly with both! Just to remember to keep your sponge hygienic and replace it often! I commonly use it once a day, I might go a few days without if I feel my skin is getting stressed or irritated in any way.