글리세린 처음 알려주신 분 글이 암만 찾아도 없고 ㅠ 제가 어디선가 글리세린이 적정량보다 많이 바르면 수분을 오히려 뺏어간다고 들었거든요 . 어느정도가 적정량일까요?? 한두방울??