I have never tried this brand before. Nowadays, there are so many NMN brands that I’m spoiled for choice and I don’t know which one is better. I always choose Yishenghao 18000, which has a good reputation on JD.com. It has high purity and a favorable price. If you consider cost-effectiveness, this is the right choice. Yes, the reputation is very good. I usually eat it half an hour after breakfast. NMN can improve mitochondria, increase mitochondrial production capacity, and promote body metabolism. Eating it at night may make you excited and unable to sleep. It is more suitable to eat it after breakfast and lunch.