Volunteers will be given a bland shampoo to use twice per week for two weeks, after which time their scalp will be examined for dandruff. At this assessment, only volunteers with a significant amount of dandruff will be selected on to the main study. If selected to participate in the main study, volunteers will be given a test product, with instructions on its use. They will use the product twice per week on set days for 4 weeks. Dandruff assessments will be made once per week at the Test Centre.