Amazon is in the healthcare business now, they aren't going to sell cheap ass otc supplements when they can make millions selling prescription drugs.

All corporations work together, along with their minions in government.

This isn't just about profit though. (((They))) don't want the working class living longer and want to monopolize anything that slows the aging process.

They did the same thing with NAC. The FDA was petitioned by Joe and Sally Q Public to the point they BTFO and Bezos put it back on the menu. If you supplement with NMN and wish to continue to do so without having to pony up a co-pay, it might be worth your time and effort to sharpen your quill.