At first, I used quite a lot of foam to clean my face and it left my face super dried. It caused my face to break out and I stopped using it. After awhile, I figured to use super tiny amount, mixed with plenty of watet and use the mixture instead. It no longer caused any problems and it was better. Make sure moisturize your skin after using so the result would be better. I wish it comes in size 25mL because 50mL is really too much, considering that I would only use tiny amounts each time.