OS Primer is enriched with organic sea lily extract to deliver 24-hour hydration to the skin. The fine, weightless texture lets skin breathe and is formulated with the Clarins anti-pollution complex to protect the skin from environmental damage. Embrace a fresh, invigorated complexion! Boosts radiance, brightens the face. Its fresh-feeling, flawless-effect formula contains the High Lumitech complex to correct, revive, and illuminate the complexion instantly.