Rhonda Patrick· PhD
Make sure your NR and your NMN is kept in the cold. If it's just on the shelf and it's not in a stabilized form, then it will degrade into nicotinamide, which is something you don't want to take high doses of because we've showed in my lab many years ago that nicotinamide will inhibit the sirtuins, and PARP as well, and interfere with DNA repair.