Hello am Vishal, I buyed derma roller online of 0.5mm for my acne scars but I don't know how to use it what to apply on face after and before using derma roller. Please suggest me.

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.