What it is
NAD+ is a naturally occurring coenzyme found in every living cell. It plays a central role in cellular energy production, DNA repair and overall cell function. Levels of NAD+ decline with age and environmental stress, which is why NAD+ has become a focus of interest in both medical research and advanced skincare.
How NAD+ works in skin health
In the skin, NAD+ supports the processes that allow cells to function efficiently and repair daily damage caused by UV exposure, pollution and inflammation. By helping to optimise cellular energy production, NAD+ supports healthy turnover and resilience rather than forcing rapid change.
In topical skincare, ingredients that support NAD+ pathways work to improve how skin cells function over time. In practice, this translates to skin that behaves more efficiently and appears more resilient, rather than producing dramatic or immediate visible change. The coenzyme is best understood as a long-term support ingredient, contributing to skin health at a cellular level rather than acting as a quick fix.