Bests & Worsts Reviews from Amazon

I have been taking niagen for 4 months now, ordering the Thorne Research products. At first, I purchased 2 bottles of the 250 mg niagen-only product, and the last time I ordered I switched to ResveraCel...just to see. The effect on me has been nothing short of spectacular. I am 62 with a full head of hair that is mostly grey. Since starting with this product, my hair has turned several shades darker. I would say I have gone from roughly 70% grey to roughly 40% grey - and in certain light I even see some reddish-brown highlights in my hair, which I thought I would never see again. Further, my vision has improved somewhat. This is somewhat incredible to me, but true. I need bifocals, which I seldom wear because I hate them. Consequently, I have not been able to read the odometer in my car or on my motorcycle for a long time...they are just at the wrong distance. Similarly, I cannot see a computer screen to read it without bifocals (I normally just put readers on over my regular glasses). Within days after starting this supplement, I noticed I could read my odometers. Now, I can read the computer screen without my readers on. In fact, my readers have become almost optional; I do use them after I have been on the computer for awhile and am experiencing eye fatigue, but I can now go for quite awhile without them. My beard had turned all white, causing me to shave it off. That is changing; my moustache is now salt and pepper, and my beard is showing more and more dark hair in it. It is happening in patches; my moustache is now roughly 50% dark, while my beard on my cheeks varies from nearly 0% dark to maybe 15% dark. My beard under my chin and on my neck is roughly 30% dark now. I now have a 5 o'clock shadow again (white beard stubble doesn't show very well against white skin, so the shadow indicates more dark hair). I also have new dark hair appearing all over my body. My skin has improved enormously. It is much more supple than it was. This is particularly noticeable on my hands, which were very tough and leathery from a lifetime of exposure to sun and lots of different chemicals (I like to build things, and have encountered many types of chemicals including all kinds of paints, organic solvents, nitromethane, lots of isopropyl alcohol, various adhesives, etc). My hands still do not look young; there are spots on the skin that I am thinking of peeling to get rid of, but the skin itself has gone from tough and leathery, with very little elasticity, to almost as elastic as a young person's hands. The skin on my face has improved, many skin blemishes (though not nearly all) are fading or have vanished, and in general my skin feels much more lubricated, flexible, and supple. I used to experience a certain degree of pain in my skin from dryness, scaling, and lack of flexibility...all of that is gone. I also have a lot more energy. When I go walking, I now sometimes feel like breaking into a run - and I don't mean a trot, but a full-out, completely extended run...and I do it when I am in a situation where I can do it without creating any kind of stir. I have not felt like doing that in decades. I am also losing a bit of weight. Given that adding this is the only change I have made to my lifestyle in the last long period of time, I have to assume it is playing a role in that. From the reviews I read here, I think I am experiencing a more pronounced response to this stuff than most people experience, but I will certainly take it. I have to assume that there are things going on with my internals that I am not aware of that mirror that which I can see. Regardless, I am simply stunned by the effect, and you may rest completely assured that I am going to continue with it.