Contains selenium sulphide 
Used to treat dandruff and itchy scalp( seborrhoeic  dermatitis)
Directions: wet the hair and massage enough onto the scalp until it forms a lather.
Leave for 2-3 minutes  and rinse thoroughly. 
Dosage : used twice  a week for the first 2 weeks and then once a week for the next two weeks.
Not to be used by pregnancy and  breastfeeding  mothers.