Additionally, the chemistry of these molecules can help explain why sunscreen has to be reapplied periodically. There are a number of chemical molecules used in currently available sunscreens, with the exact formulation actually depending on where in the world you live. It’s a product that many of us may take for granted, but you’ve got chemistry to thank for it preventing your skin turning lobster red in the summer sun.
With summer more or less here (stifle those sniggers, English readers), it seemed as good a time as any to examine the chemicals in sunscreen.
