Sinclair Laboratories has been working hard on bringing the world’s most effective NMN product for its customers. It is a firm believers in the healing and age-reversing capabilities of NMN. They use a formula called Erythritol X to improve absorption of the NMN into the bloodstream.It doesn’t raise blood sugar or insulin levels, and has antioxidant properties. The tablets taste great and are well tolerated in the body, and don’t cause tooth decay.