There are five shades in total.
Here is a guide as to which colour corrects what issue:
Green: The reducer - to combat redness
Purple: The revitaliser - to combat dullness/yellow undertones
Pink: The balancer - to help reduce the look of dark spots on lighter skin tones
Yellow: The brightener - to help reduce the look of dark circles/purple undertones
Peach: The illuminator - to highlight
