Essence, Ampoule and Serum

Toners in Korea provide a base layer of hydration, making the skin more amenable to what’s about to go on top.
OK, so your face is cleansed and toned, you should use an essence.

Essences are more lightweight and less concentrated than serums and are used after a toner to add another layer of hydration before you apply serums.
Generally, a serum contains a few key active ingredients to address specific issues like brightening, dark spots, wrinkles, etc. The actives are usually more concentrated than what you’ll find in, say, a moisturizing cream. Serums are a bit thicker in consistency - almost oil.
Both essence and serums are used at the same treatment step of skincare to achieve similar results.
An ampoule is a supercharged serum with higher concentrations of active ingredients.

1.Oil Cleanser  2.Foam Cleanser  3.Physical Exfoliator / Chemical Exfoliator   4.Toner  5.Treatment  6.Peel-off Mask / Wash-off Mask / Sheet Mask  7.Eye Cream / Eye Patches  8.Moisturizer  9.Sleeping Pack  10.Sun Care