I had been buying NMN through you on Amazon until they decided not to sell it anymore. I now am buying directly from you and would be very disappointed if I were not able to in the future.
Since starting NMN, I have noticed my sinuses clearing to the point where I am almost back to normal after years of coughing and a stuffy head. I am getting better sleep and am experiencing vivid dreams for the first time since I was young (I am now 76 years old). I don't know if it's a result of better sleep or not, but my concentration is better, my meditation in the morning is more peaceful, and I am reading better. Besides all that, I have more youthful energy and better endurance and am able to work harder at the gym.