What it is: A concentrated serum that helps quickly repair the skin barrier.Who it's for: Ideal for all skin types.What it does: The serum helps repair the skin barrier at the cellular level. A healthy skin barrier is the difference between smooth and radiant skin, or flaky, rough and bumpy skin. In fact, a hydration- and lipid-depleted barrier may be masquerading as these exact issues. Cellular Hydration Barrier Repair is clinically proven to strengthen, nourish and repair your skins barrier at the cellular level, a fundamental marker of true skin wellness. It works like a glove to keep pollution and bad bacteria out of the lower layers of your skin, while sealing in hydration and lipids.Key ingredients:- Biomimetic hexapeptide-9: restores damaged skin by emulating barrier-enforcing peptides that reduce water loss- Refined bilberry seed oil: provides the essential fatty acids for healthy barriers: omega 3 and 6- Hyaluronic acid molecules: form a protective layer that continuously delivers water to skinHow to use: In the morning and evening, apply an even layer of Cellular Hydration Repair Serum onto clean skin. Follow with a sunscreen during the day. 1 oz. Made in the USA