Darphin Paris Intral Serum, 1.7oz. New without original packaging. From website: Formerly known as Intral Daily Rescue Serum. New Intral Inner Youth Rescue Serum is the daily skincare essential that preserves youthful skin by helping to correct and prevent skin sensitivity that can lead to the breakdown of collagen and elastin. With an ultra lightweight, fast absorbing texture, this supercharged formula combines amplified botanical actives with scientifically advanced ingredients for fast visible results. Traditionally, sensitivity has been known to happen in two stages.