Generally, is it good to leave your hair with a little grease or should I wash my hair frequently in order to have better shape?

Hi, if you are talking about sebum (which is the hair's natural oil) then it is fine to have a little in your hair because it will help to stop the hair from drying out. Hair can become weighed down from too much oil, however, so it is a good idea to wash when you feel it is necessary. Kind regards, Sarah Koessler - THS Hair Consultant.