NAD+ is usually given in an IV treatment however I found a nasal spray on Amazon for 50 bucks. I have been using it often, too much but meh. My skin looks youthful and I asked my wife and she agreed. She would not lie about that either.
I just found some for pretty cheap and used one shot intramuscular; felt good but can’t say much yet. Gonna use it at 100mg next time and try for every couple days then evaluate. Do you use a Sirtuin1 activator with it?