The SR Booster™ Layer reinforces the scratch resistance of the lens by adding an intermediate layer between the hard coat and the Anti-Reflective (AR) layers of premium Crizal lenses. This creates a gradual increase of hardness from soft organic substrate to ultra hard mineral surface.

For the wearer, the SR Booster layer significantly increases the durability and scratch resistance of the lens.

Crizal Avancé™ lenses with Scotchgard™ Protector incorporate the SR Booster layer and are the most scratch resistant No-Glare lenses on the market to date.