BYONIK® SEAL provides your skin with long-lasting, intensive freshness while at the same improving skin’s moisture levels and strengthening the natural protective functions of the skin from environmental damage. The active ingredient black oat provides deep moisturising and gives your skin a vitality you’ll feel immediately. Provitamins A, B1, B2, B6 and biotin combine with a maximum amount of rich ceramides to help your skin create a seal of freshness that protects it from environmental damage.