Are the Makeup Brushes/Makeup/Hair tools sanitized between use?

All of our artists are required to clean and maintain a sanitized work area including their makeup, brushes, and hair supplies. All artists are either equipped with multiple brushes or their brushes are cleaned between use with brush cleaner and 99% alcohol. All lip products and eyeliners are also sanitized with 99% alcohol. All hair combs are sanitized with 99% alcohol or multiples are carried on hand. Bobby pins/hair pins are NOT reused EVER.