Concentrated serum with Hexapeptide-9 that repairs skin barrier in just 30 minutes at the cellular level. Key Benefits: Biomimetic Hexapeptide-9: Restores damaged skin by emulating barrier-enforcing peptides that reduce water loss​ Refined bilberry seed oil (from handpicked berries): Provides the essential fatty acids for healthy barriers: omegas 3 and 6 Network of hyaluronic acid molecules: Forms a protective layer that continuously delivers water to skin | Murad Cellular Hydration Barrier Repair Serum 1 oz, 28 g | Dermstore