Z Clear is a premium lens cleaner with anti-fog and anti-static properties. Our paste also acts as a minor scratch filler. We are primarily known for being an effective anti-fog for prescription glasses and personal protective equipment, but our reinvented lens cleaner offers many other unique benefits. Z Clear is oleophobic and removes oil thoroughly while repelling it from the treated surface. We believe in creating the highest quality, longest-lasting, safest and most powerful lens cleaner on the market for all surfaces. What makes Z Clear a safer option than traditional lens cleaners is the fact that we don't use an alcohol or ammonia base. The more you use Z Clear, the more you build up a protective layer that repels moisture (fog), dirt, dust, and oil. We recommend re-applying Z Clear every 2 to 3 days.