What is the Signature Select Brighten Amplifier?

The Brightening Amplifier addresses dull, lacklustre skin.  It features Radiance Renewal Technology to help control key factors which cause the appearance of dullness and uneven skin tone.  The skin appears more flawless and revitalised, brighter and more luminous.  The Brightening amplifier can be used alone in the base serum or with up to two other amplifiers such as Hydration and Anti-Wrinkle.