I like this product for cleansing the skin on days when I haven't done much to make my skin dirty, but what about for after the gym when my skin is sweaty and dirty? Will this "cleanser" actually remove all the sweat effectively? or should I cleanse with something else first, and then use pond's? I usually use Purpose cleanser, but I bought Pond's on sale and really like it so far. I'm just concerned that it won't get my skin clean after the gym.