감기전에 5분 불리고 거품 낸 상태로도 좀 기다렸다 감으라는건 잘 이해했는데 그럼 한번만 감나요?
저는 오랫동안 두번 감았었는데 저렇게 하면 굳이 두번 감을 필요가 없나요? 머리 기름져서 너무 스트레스예요ㅠㅠ