I am taking a number of their products - Niagen, Midogen, LA-3, QL-5, Cerastim, Vital Stem capsules, and Adult Probiotic. I also take a number of vitamins and minerals. I give much of the credit to their products because I was taking the other supplements for many years before I started taking these ones.
The main improvement for me has been the decrease in forgetting names and places. I'm 79, so I don't expect my memory to be as good as it was up to my 50's or 60's, but it is better than it has been for several years. I have been able to get through my days with very limited use of Google. I have been going to the gym for over ten years and still get there 5-6 times a week. I meet with a small group for a walk and talk in local parks, and I have not had to resort to walk OR talk yet, so I'm happy with the products. I haven't seen the weight loss I was expecting, but I'm not gaining.
Bottom Line: Yes, I would recommend this to a friend