Taking proper care of Invisalign aligners is crucial. You can buy a care kit available through Invisalign, but you can also be sure to rinse them off whenever you remove them. We suggest you gently brush the aligners with warm water and a mild soap or soak them in denture cleaner for an hour or so daily. Invisalign aligners need to be worn for 20 hours or more per day, so be sure to schedule a time for cleaning.