<!– — When buying sunscreen, we automatically look for the letters “SPF”. SPF is short for “sun protection factor”, which measures how much something protects your skin from the sun’s ultraviolet or UV rays. There are two types of rays that can cause skin damage: UVA and UVB rays.  Even though summer is over, you should still religiously apply sunscreen during the colder seasons as UV rays are invisible to the eye, and failing to protect your skin from the…