As a beauty writer for more than a decade, I completely understand how and why skin changes with age. But, just in case you need a reminder: "As we get older, our skin becomes thinner, less elastic, ...

You can take NAD+ supplements in pill or capsule form, by injection, or via an IV (which celebs like Kendall Jenner and Hailey Bieber swear by, per episode one, season five of The Kardashians). The ...