I’ve been an intermediate user of micro-needling pen for years. This is a new model has incorporated LED light therapy and a serum storage container, which provides convenience for the treatment but also requires further adjustment on speed and depth setting accordingly. Must sanitize/disinfect the work area(surface) where you set up and proceed with your micro-needling session and wear gloves for the operation. Be cautious with the tiny ‘wounds’ just created after treatment, stick with pure HA serum and keep skincare routine simple until micro-peeling is over. The positive outcome would be guaranteed if the commitment to following instructions is well made. Would recommend this beauty tool to the intermediate/advanced users.