Peter Attia has used a rejuvenant product containing alpha-ketoglutarate (AKG) for years, adding and removing other substances like astaxanthin, fucoidan, and rapamycin to assess their individual effects, and measures outcomes.

“I've been using the the the rejuvenant with the AKG for a long time because I I was involved in the research, you know, I'm on I'm actually on the board of the company. I I I it's something I've done and I've just taken for years and I add one thing to it and take it away. So I've tried aanthin, I've tried fukcoidin, I've tried rapamy, I've tried a bunch of other things, too. So and I try to measure before and after.”