Sun Screen Day or Sunscreen Protection Day

Sunscreen and sunblock are not the same thing, although many people use the words without thinking about the definition. They are actually two entirely different forms of sun protection.

Sunscreen: Sunscreen is the more commonly used type of sun protection. It filters or screens the sun's ultraviolet (UV) rays. It keeps most rays out but lets some in. It may also be called a chemical sunscreen.

Sunblock: Sunblock reflects the sun's rays away from the skin. It blocks the rays from penetrating the skin. It may be called a physical sunscreen.