People are paying more attention to their personal image. Skincare is no longer only for women. Men's grooming is now become an important part in cosmetics. Summer has already come, many people like to go to the beach to swim, surf or even have a sunbathing. Though the sun is beneficial in order for the human body to get its daily dose of vitamin D, unprotected excessive sunlight can cause extreme damage to the skin, or even worse, cancer. UV radiation and skin cancer We all know that sunscreen is a basic and must for us to protect our skin from sunlight. But we may feel confused when choosing the right one for ourselves, especially when salesperson is giving a kind introduction to every sunscreen product and talking about " UVA " or " UVB ". So, what is UVA/UVB? The most common reason of skin cancer is the exposure to the ultraviolet(UV) radiation. UV radiation is present in sunlight constituting about 10% of the total light output of the Sun.(https://en...