I started taking this NAD+ supplement looking to feel more energetic and clear during the day, and the truth is that I have noticed a gradual change. It's not immediate or exaggerated, but with constant use I've felt more focused and less mentally tired. The capsules are easy to take and did not cause me discomfort. I like that the formula is simple and that it doesn't feel heavy. It is one of those supplements that work in the background, without making noise, but providing stability. Overall, I think it's a good option for those who want to support their daily energy and well-being without unrealistic expectations. Every body is different, but in my case it has been a positive experience.