Its level decreases with age (especially from the age of 45-50) and as the body's defence needs increase (immunity, liver detoxification, antioxidant defences...)
doi: 10.1016/j.pediatrneurol.2009.02.010 61
Today it is available only by prescription, compounded by state-licensed 503A pharmacies or FDA-registered 503B outsourcing facilities, neither of which is independently reviewed or approved by the FDA as a finished drug product, most commonly prescribed off-label for adult GH decline or wellness/anti-aging use
Cooper D et al
Reduces Wrinkles Wrinkles are the first and most apparent sign of aging
Collectively, to better understand the therapeutic potential of NADPH metabolism, more preclinical and clinical studies should be implemented to address these difficulties, and combined approaches with immunotherapy and/or chemotherapeutics should be pursued as the best strategies because of their synergistic effects