A first-of-its-kind customize blend hydrator that hydrates and treats your main skin concern, your way.Dramatically Different Moisturizing Lotion+ hydrates all day and protects against skin-damaging pollution while helping to strengthen your skins moisture barrier, so more moisture stays in. It slips on easily and absorbs quickly. There’s extra space in the base for the addition of the active cartridge concentrate which combines with the lotion to address your particular skin concern.