Perhaps it's my lack of domain knowledge but I am pessimistic about all these magical sounding drugs. There are some horrible diseases out there that are not ageing related that still have no cure and no treatment. I don't know if it's a matter of money, they just sound like really complicated illnesses which humanity has very little understanding of. So things like "reversing ageing" sounds like far fetched when even simpler processes are difficult to understand and control.
This is very interesting and now there is a lot of science aggressively heading in that direction with many famous influencers taking on experiments on themselves and showing their audiences the results. Its a new age and how far or close is the target?
"...the injection went into one eyeball of..."
"...scientists will be watching to see how well..."
"...while doctors keep an eye out for any..."