XPrize founder Peter Diamandis, a company adviser, texts OneSkin’s co-founder and chief executive officer, Carolina Reis Oliveira, whenever he runs out of product. Serial entrepreneur and OneSkin investor Kevin Rose talked up the brand on Tim Ferriss’ podcast, where he suggested the pioneering biohacker try the eye cream “on one eye for three months. That’d be f---ing cool, right?” Self-help guru Tony Robbins has called OneSkin “groundbreaking,” and Matthew McConaughey says he uses the hair serum on his famous mane (an endorsement the company eagerly reposted on its social channels). “It doesn’t feel like you’re buying a beauty brand,” says Jane Carlson, managing editor of the trade publication Beauty Independent. “You’re buying something for the longevity of your skin.”