NAD+ is researched because it is a vital coenzyme in cellular energy metabolism and mitochondrial function, showing promise for enhancing vitality and slowing age-related decline. It is also studied for benefits in DNA repair, neuroprotection, and metabolic health.

Glutathione is researched because it is a powerful antioxidant involved in detoxification and cellular defense, showing potential for reducing oxidative stress and supporting liver health. It is also studied for benefits in skin brightening, immune support, and anti-aging.