noun
serum; cosmetic lotion
Refers to a skincare serum or concentrated cosmetic lotion. In Japanese beauty contexts, セラム is often a lightweight, highly concentrated product applied before moisturizer.
化粧水のあとにセラムを使っています。
I use a serum after the toner.
このセラムは肌にハリを与えます。
This serum gives firmness to the skin.