BYONIK® SEAL provides your skin with long-lasting, intensive freshness while improving the skin’s critical 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 the vitality you’ll feel immediately. Provitamins A, B1, B2, B6 and biotin combine with the maximum amount of rich ceramides to help your skin create a seal of freshness that protects it from environmental damage.