REN Wake Wonderful Night-Time Facial* The latest overnight treatment from REN promises to firm, brighten and illuminate your skin while you sleep, leaving you with a glowing complexion when you wake. It works in three phases: Phase 1: Lactic and Glycolic Acid exfoliate and brighten the skin. Phase 2: Glycogen and Magnesium boost cell vitality and revitalise the skin. Phase 3: Sodium Lactate gradually raises the skin’s pH level, leaving the skin plumped up and rejuvenated. It is designed to be used alone, but you can layer it as well – you can apply a serum beforehand, or a moisturiser afterwards if…