Is RAY-BAN SUNBLOCK a sun-tested and sun-proven formula? Yes, RAY-BAN SUNBLOCK features a sun-tested and sun-proven formula, indicating that it has undergone testing and is proven effective in protecting the skin from sun damage. ramsha.derma Is MATT SHIELD SUNSCREEN friendly for those with acne-prone skin? How does NEUAGE SUNBLOCK SPF 40 help in preventing premature aging and maintaining a radiant complexion?