I'm still waiting my derma pen to arrive from china, and in the meantime i want to buy a dermaroller for like a daily or other day usage, i'm hesitating between 0.5 or 0.75 mm.
which one do you recommend me, and i want to know if the 0.75 need a numbing cream ?
which one do you recommend me, and i want to know if the 0.75 need a numbing cream ?