67% OF CHICKS DIG IT
This comes in two colours - Yellow/Turn Up, which makes a shade brighter, or Black/Turn Down, which deepens a shade. I got Turn Up, and I use it to brighten some of my pink lipsticks. This shade transformer can be used with any lipstick by any brand, so you don't have to stick to Estee lipsticks. It's a really fun product to have and can pretty much double your lipstick collection cause you can use it to brighten/deepen any shade.
These reviews are the subjective opinions of ChickAdvisor members and not of ChickAdvisor Inc.