There are 13 highly concentrated effectors (serums) in this line. Each one is formulated with specific ingredients designed to tackle a distinct skin concern, such as hyperpigmentation, discoloration, oily skin, large pores, skin aging, etc. Below is a chart with more information on each effector. -How To Use Apply proper amount (2-3 drops of fountain filler) after Toner Then Spread it on the face & neck etc softly Pat it lightly to make it absorbed in the skin