Longity : the most advanced NMN technology for healthcare professionals Developed with cutting-edge cellular metabolism science, Longity is powered by a uniquely synthesized, proprietary form of NMN, called NMN-C®. Our proprietary NMN-C® beadlet delivery system is designed to increase NAD+ where it is needed the most. Combining bioavailability optimization technology and NAD+ supplement, Longity’s unique technology unlock cellular repair.