Senka Perfect Whip

I highly recommend Senka Perfect Whip Cleansing Foam. I first tried it over a decade ago on a friend's recommendation during my first trip to Japan, and I loved it so much that I've been stocking up on it every time I visit ever since. (It was less than 200 yen back then...) It produces a rich lather with just a tiny amount, so I especially recommend it for those with sensitive skin. Oh, and for those buying this in Japan, please be careful of counterfeits. They sell knockoffs that look exactly the same in the same shops lol.