Thoughts on NAD+?

My father is starting to get up there in age, and he’s been expressing a lot of interest in NAD+.

He’s been worried a lot about the possible onset of dementia as he gets older, and thinks NAD+ might help him stay cognizant.

I’m not very well versed in this peptide stuff, so I’m curious: do any of you have experience with that peptide, and if so, what was it like?

I’m sure it’s fairly safe and I’d love for him to be protected from mental issues. I’m just a little worried about my dad is all.