ChromaDex Corp. (CDXC)

[Milarepa]

Yes, they changed the pricing in February
https://www.right-of-assembly.org/single-post/2019/02/13/New-Pricing-for-Niagen-on-Amazon

The single bottle (now 300mg) is running $47.30:
https://amzn.to/2EweMcQ

Although really $42.30 if you clip the $5 coupon.

I suspect this has shifted a lot of repeat business to ChromaDex's own eCommerce site, where $30/bottle is available.