The Derma Roller works as a microneedling system. Microneedling helps to stimulate blood flow throughout the scalp and promote hair growth. DIRECTIONS Prepare the scalp by separating the hair and gently sliding the Derma Roller back and forth, going over each area 3 times. Then, apply the RIZN Hair Densifying Spray, if this is also part of your routine. After use, disinfect the Derma Roller with rubbing alcohol and let it dry. DO NOT USE IF Your scalp is red, inflamed, burned, sunburned, irritated, infected, cracked or painful to the touch. Do not share the Derma Roller as it should be used exclusively by the same person. Do not use the Derma Roller if there are bent needles. Store the Derma Roller carefully in the box provided and keep out of reach of children. USAGE The Derma Roller is to be used 2 to 3 times a week. Allow 3 months of continuous usage for initial results to show. Optimal results will show after 6 months. This product does not cure alopecia. Consult a doctor if your initial hair loss is sudden and/or patchy.