You can use them both...wash hair with Revita 3-5 times per week and apply revivogen in am and pm.....they both will help with maintenance. If you want regrowth you may want to add minoxidil.
Most people here seem to use revivogen and ketoconazole as supplemental treatments to powerful meds like dutasteride,finasteride and minoxidil.So it's hard to disaggregate their results. Theoretically they can help.
forget what hooterson said.It is recommended to use revivogen once daily.It has worked for me in stopping my hairloss.Except when i added revita it destroyed my hair.Now im prarying for myhair to come back after stopping revita.