• Acne • Skin pigmentation • Shrinks pore size • Scars • Stretch marks • Sun damage • Fine lines and wrinkles • Hair loss • Rosacea The microneedling procedure takes 15-20 minutes to perform. Most people will need 3-6 treatments spaced 1 month apart to see effects. Ninety percent of clinical trial subjects reported improvement in the appearance of facial acne scars over time and would recommend microneedling to family and friends.