Keep the roller in the fridge or freezer. The colder the better. You can sanitiser the roller with an anti-bacterial spray or use a Beauty & Butler cleansing wipe to clean it in between clients. 

Use it during or after a wax treatment to help cool the skin, you clients will love it!! 

Incorporate it at the end of a facial treatment for those "Ooooo's and Aaaarrrr's"