Best Friends Forever...and Ever, and Ever, and Ever

From celebs to finance bros, everyone suddenly seems to think an NAD+ drip is the secret to eternal youth. Could they be right?

- DANIELLE STEIN CHIZZIK

"I’m gonna NAD for the rest of my life and I’m never gonna age!” Hailey Bieber yelped with glee as she and pal Kendall Jenner were pumped by IVs on a 2022 episode of The Kardashians. At that time NAD+ was unfamiliar to roughly 99.9 percent of the show’s viewers—even if Hailey, perhaps the first person to use NAD as a verb, was not the only Bieber touting its magical benefits: Husband Justin treated viewers to his own NAD+ session in an episode of his YouTube documentary series.

In the last couple of years there has been a steady drip (ahem) of content—studies, message board buzz, Huberman Lab podcast episodes—feeding the NAD+ frenzy. “Ever since Jennifer Aniston talked about it being the reason she’s never felt better, it’s been an ‘I’ll have what she’s having’ moment,” says one woman who can best be described as Los Angeles royalty. “But the drips take hours. Snore. I can’t decide if it’s worth it.”