I am a huge sunscreen fanatic. Most skin ageing comes from sun exposure. Thus, the small act of slapping on a bit of sunscreen every morning before you go out makes a lot of sense.
John Shu from Triple Helixian has written a comprehensive series on sunscreens – inorganic (such as zinc and titanium dioxide) vs organic (such as avobenzone and octinoxate) sunscreens.
It is a five-part series he wrote for FutureDerm – and an extremely good read to help you understand the different type of sunscreens, how they work and which one is best to use etc.
The series covers: