When looking for a good sun lotion there are so many things to consider. Is it natural? What strength should and do I need to use? How often do I really need to apply it? It may officially be the start of Autumn, but think twice before throwing that SPF to the back of your draw.
Below is a link to a great post, with detailed scientific information about why your SPF may not be working for you, from our sister blog : The Case of the Curious Scientist.