How to pick✔️ 립세럼 = lip serum, 립 슬리핑 마스크 = overnight lip mask, 립 에센스 = lip essence, 립플럼퍼 = lip plumper, 향 = scent. The lip mask comes in berry and apple lime; apple lime has 2,186 orders and 417 reviews. Serum by day, mask at night. Both masks are ₩3,000 and differ only in scent, so pick your favorite.