Like hairloss, there is no magic bullet. Lifestyle, a few Rx meds, nutritional supplements, genetic analysis, blood tests. Caloric restriction, high intensity interval training, Mediterranean diet, metformin, telomerase activators, review alleles for defects and correct with meds or supplements, review blood work periodically and correct deficiencies. Don't drink, don't smoke, meditate, get 7-8 hours of good sleep every night. And yes, current science on antiaging is like topicals for hairloss-it's blown away by the power of nature's genetic design.