Comment by hn_throwaway_99

This is related to an article from yesterday, https://news.ycombinator.com/item?id=45145624, about the Choice Australia investigation that found that some sunscreens (named in that article) provided around SPF 4 when it was labeled as SPF 50+. It is a big deal because many people (like the 34 year old woman in the article who had skin cancer removed from her face) use a specific brand for years, believing it to be as effective as the label proclaims.