Features: 1. Stimulate the production of collagen. 2. Improve skin elasticity 3. Acne scars 4. Promote skin rejuvenation and improve hair loss Instructions Step 1: Sterilize with 75% alcohol for 15 minutes before and after use, then rinse the alcohol with boiling water Step 2: Clean the face, then wipe off excess water with a cotton ball Step 3: Use the wheel to gently roll on the face and 20 times in an area Step 4: Use special skin care products, do not wash your face on the day of use Precautions 1. Do not push the roller into the skin with force, but just apply gentle pressure 2. Roll with tilt at the same intensity, covering the same area in both directions (vertical and horizontal) 3. Do not overuse the roller, because the needle will keep sharp for a long time 4. Keep out of the reach of children
