Users with sensitive skin must apply numbing cream before using a derma roller to prevent skin irritation. This is an important guideline that must be followed regardless of brand. A numbing cream must also be applied before using a roller with needles bigger than 1.5 millimeters.
A derma roller is a specialized handheld roller used to clear pores and repair skin. Using a series of tiny needles, a derma roller pulls dirt out of pores and stimulates blood flow to tone skin and remove blemishes. Before using a derma roller, users must bathe to remove dirt and open pores. Next, users gently rub the roller over their skin in a crisscross motion for 10 to 15 minutes. For best results, users should repeat this process every one to four weeks.