Disinfection of tools and basin. They should have a disposable liner for the pedicure bowls, and bring out tools from a package that sanitizes them or a sanitary element. Also as they dispense products they should be dispensing with one time use applicators and not touching those applicators to their skin or your skin and putting it back into the jar. Those are all red flags. Also the heel cheese grater things. I love them but they’re illegal a lot of places bc you can’t disinfect them properly

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