HydroPeptide Professional Barrier Builder is a nourishing recovery cream that is formulated to calm and renew inflamed and irritated skin. It delivers a potent blend of clinically proven ingredients that repair, hydrate, and fortify skin. At the core of Barrier Builder is HydroPeptide's exclusive patented peptide CellRenew-16, offering your skin a cellular toolkit to construct the essential structural proteins necessary for a healthy-looking complexion.