4 in 1 Microneedle Derma Roller Set is the one of the best Beauty Instrument for youself and your families. You deserve to have such a good personal beauty equipment and skin care system. Instructions Before and after using,You must disinfect with 15% alcohol.Then use boiling water to clean the alcohol. Clean face with face cream,Use a cotton pad to dry excess water. Apply the solution evenly to the skin Micro-needle roller gently rolling on the face,Avoid damage caused by excessive force.One place scroll 20 times Apply special repair mask and related liquid. Please stop using it with the follow items: Open wound. Acne or skin irritation. Under the eyes or on the lips. Irritation occurs. Have a good shopping and thanks for your support!