Never opened - came brand new from the Harrods Advent Calendar An intensive age-defying serum designed to support skin barrier function and brighten the complexion while targeting key signs of aging, including wrinkles, hyperpigmentation, and dehydration. The highly effective formula of only 12 ingredients features our signature BIOEFFECT EGF, BIOEFFECT KGF – a fortifying growth factor that promotes the skin barrier – along with Hyaluronic Acid and NAG.