This takes the dirt off great. Fair warning though it may burn a little bit if you have any scratches or blemishes on your skin so be aware. And please make sure that you dilute it with water, it is too acidic otherwise.
I personally only apply it once a week. But it depends upon what your skin type is.
Lemon works as a moderate to strong astringent and disinfectant and as a mild bleach, benefiting unbalanced, blotchy, oily, and acneic skin and helps to restore natural skin pH.