Giantzides says: "When using a derma roller first soak it in isopropyl alcohol for 10 ... beard once or twice a week, on days when you don’t use the derma roller." Healthline added: "Derma rollers ...

Not this: This is my beard, if you even want to call it a beard. This footage was taken after I let it grow for two weeks. Two weeks! It's thin, patchy, and in some spots there's no hair at all.

consider using minoxidil on your beard once or twice a week, on days when you don’t use the derma roller." Healthline added: "Derma rollers have been shown to effectively promote hair growth on ...