This is saffron oil. Night care serum .. should be applied to the face before going to bed at night. Before applying this serum, wash the face with a clean face wash. Then take 4 drops of this rich glow serum and apply it on the face. By doing this, the face skin regenerates at night. Restores damaged skin cells. Increases the glow in the skin till morning. This rich glow serum works wonderfully in a regular skin care routine.