To sanitise the roller, rinse under warm water, then pour isopropyl alcohol (or similar) in a dish and soak the roller for 60 minutes. Rinse with warm running water for 30 seconds and let it dry on a paper towel.
Note: When microneedling, use medium pressure and do not use the roller around or over the eye and lip area. Only rollers 0.3mm and under should ever be used at home. Replace roller every 2-3 months depending on use.