I am very fussy about cleaning all my facial applicators and brushes with antibacterial cleaners and hot running what and giving them a good clean even if all they do is disperse oil or scrub brush foam up cleanser and never use the pink file applicator or the massager on my face as they don't feel right they are better on shoulders, nails or feet so I clean them all well. and spray vinegar or cleaner oil or rubbing alcohol on them after washing in antibacterial suds. only I used them and I won't share them with anyone, not even my microdermibrasion kit.