There is a variety of evidence that suggests NAD+ supplementation has health benefits.
This paper analyzes several studies and reports benefits to skin inflammation, improvements to mood, and other positive effects.
There have also been several studies linking NAD+ to longevity, showing that boosting NAD+ levels can extend the lifespan of organisms and help fight against disease.
Delivering NAD+ via injection enables us to deliver NAD in a way that bypasses breakdown by the gut and liver. As a result, we are able to deliver NAD+ more efficiently as compared to taking an oral supplement.