Celebrities like the Kardashians have been using red light therapy for years now, and it's one of the best-kept beauty secrets so far. Perhaps that's why Kim has that creamy, dreamy complexion many women would die for.
And yet, it's not really a secret. Many A-list celebrities are on record parading their red light therapy home setups. We're talking Jessica Alba, Chrissy Teigen, Emma Stone, and many more. Celebrity aestheticians such as Shani Darden are front-line supporters of RLT, but why is it so hot right now if the technology is not new?