Sunblock, Sunscreen, and SPF.. What Exactly Are They?
You have probably been exposed to the concept of sun protection from your mother insisting you put on sunscreen and wait a few minutes before jumping into the water. You’ve probably also used sunblock, sunscreen, and SPF interchangeably to mean sun protection; but what exactly are they and what are their differences? While they do fall into the category of sun protection, they each have different functions. Terms Ultraviolet Rays (UV Rays) are solar energy radiation. UV Rays