Polynucleotides are biostimulatory products designed to regenerate, restore and improve skin quality. They are particularly suitable for thin, sensitive and dehydrated skin, as well as for softening fine lines and supporting skin recovery. The treatment is often used in delicate areas such as under the eyes, where it helps improve hydration, elasticity and freshness. A series of 2 to 4 treatments at 2- to 4-week intervals is usually recommended, with maintenance as needed.