Kana
귀엽게 생겼네요 저도 한번 써보고싶군요
I tried a shampoo bar by chance, and it had far more advantages than I expected.
It lathers well, and my hair doesn't get as stiff as I expected! Being an eco-friendly product is a bonus, too!
As for the downsides... honestly, I'm not really sure.
They even had a separate treatment bar!
It's not a bad idea to try it at least once.