Topical serums and supplements aren't your only options. Lifestyle factors significantly impact NAD+ status, how your cells function, and your skin overall.
Exercise
Physical activity, especially high-intensity interval training (HIIT), stimulates the body's natural production of NAD+. A 2023 study from the University of Copenhagen found that regular exercise effectively protects against age-associated decline in skeletal muscle NAD content, supporting energy metabolism throughout the body.
Fasting and Caloric Restriction
Intermittent fasting triggers stress responses in cells that upregulate NAD+ synthesis. Many longevity scientists, including Harvard's Dr. David Sinclair, practice time-restricted eating partly for this reason to support mitochondrial function and energy production.
Sleep Optimization
Poor sleep accelerates NAD+ depletion and contributes to premature ageing. Aim for consistent sleep timing and 7-9 hours nightly to support circadian NAD+ rhythms and healthy skin function. Quality sleep is essential for cells to repair damage overnight and slow the aging process.
Sun Protection
UV rays and UV exposure deplete NAD+ and increase oxidative stress, causing sun damage to skin. Daily SPF isn't just about preventing sunburn—it's about preserving your cellular energy reserves, preventing DNA damage, and protecting skin from extrinsic aging that leads to wrinkles and sagging skin.
NAD+-Supporting Foods
Certain foods contain NAD precursors or support NAD+ energy metabolism: broccoli, cabbage, avocados, edamame, cucumbers, and foods rich in tryptophan (which feeds the de novo NAD+ synthesis pathway). These provide building blocks your body needs to maintain NAD+ levels naturally.
Results depend on individual factors, including skin type, age, and consistency of use.