How to Use a Derma Roller at Home: A Skincare Guide wikiHow
1. Disinfect the roller before you use it. Because the tiny needles will penetrate your skin, it's essential to disinfect those needles first. [1] Soak the roller in 70% isopropyl alcohol for 10 minutes Then, shake off the excess alcohol and let the derma roller air dry for a few minutes. 70% isopropyl alcohol is better than 99% because it ...