It's a cool video but it's formatted almost like a tutorial, with folks in the comments appearing excited to actually try it on their own bodies with lab equipment they have access to. It's pretty irresponsible given that I don't think he fully expressed the risks of doing this to your own body.
It's not just risky, it's hard to know if it really "worked" for many reasons.
This is why we run double-blind, randomized control trials- to be convinced that the treatment "worked".
e.g the amount of backlash thought emporium got when he genetically engineered himself to remove lactose intolerance: https://www.youtube.com/watch?v=J3FcbFqSoQY
Risky, but it's his body!