Showerhead filters and LED face masks come with a lot of beauty claims...but do they deliver? Dr. Sanjay Gupta tackles two popular hair and skin trends, with insight from dermatologist Dr. Marisa Garshick, breaking down what the science says and whether they’re worth trying at home.  Producer: Kyra Dahring   Medical Writer: Andrea Kane   Showrunner: Amanda Sealy   Senior Producer: Dan Bloom   Technical Director: Dan Dzula  Learn more about your ad choices. Visit podcastchoices.com/adchoices