Medik8 H.E.O. Mask (2 x 50ml)Wake up to deeply hydrated skin with this two step overnight mask, featuring the three essential elements of long lasting moisturisation. Humectants, emollients and occlusives, in an optimised H. E. O. ratio, work in perfect harmony while you sleep to leave the complexion feeling supple, smooth and intensely nourished. Step 1: The cooling blue gel instantly replenishes skin hydration, using hyaluronic acid, glycerin and other humectants which work to