I’ve been taking Double Wood NMN for a little less than a year and have noticed a modest improvements in energy, memory, circulation and several other age-related issues. This supplement can be somewhat hard to find, but Double Wood has been a reliable source for me. I am a healthy, semi-retired 74-year old man who continues to work as an adjunct faculty member for a nationwide for-profit educational company so my mental faculties and overall health are important factors in my ability to do my job. I’ve noticed a steady improvement in my training quality since taking NMN and have been able to undertake a greater workload due to my increased self confidence and overall state of mind. I believe the NMN from Double Wood Supplements has made a big difference for me.