very affordable and it works! it brightened my skin and I noticed that my acne marks are less visible now.
I experienced purging on the first week of using it. what I did was I stopped using it for four days and then slowly incorporated it on my routine by using it once a day (nighttime). I use it before my Calamine gel moisturizer and it works well for my skin.
Do a patch test and start with once a day use.