7. A bigger price tag doesn't equal better results. Price sunscreen is not necessarily more effective.
One of the most interesting results from The Sweethome's study is that a pricier sunscreen is no more effective than a drugstore find.
Sunscreens that are more expensive are packed with expensive but irrelevant ingredients (think extracts and fragrances) that are not present in high enough amounts to make a difference in effectiveness.
There's also the issue of branding. According to Johnston, products with a fancy French name or a couture design house might not sell an inexpensive bottle of sunscreen simply to stay on brand. The moral of the story? Don't buy tiny expensive bottles you're afraid to use liberally.