What is the Signature Select Firming Amplifier?

The Firming Amplifier addresses the more advanced signs of ageing, including sagging skin and loss of resilience.  Skin Tightening Technology increases the building blocks of firmness and elasticity to provide more resilient, firmer looking skin.  The Firming amplifier can be used alone in the base serum or with up to two other amplifiers such as Hydration and Anti-Wrinkle.