Best FINASTERIDE dose for HAIR LOSS! 1mg vs 0.5mg Finasteride! Best FINASTERIDE dose for HAIR LOSS! 1mg vs 0.5mg Finasteride! 15. December 2018 Michael Best FINASTERIDE dose for HAIR LOSS! In this video i want to show you the difference between 1mg finasteride/day and 0.5mg finasteride/day.