Anna's Answer: Everybody has different hair types and you need to choose the right product for your hair. Greasy hair happens when too much oil is produced. This often happens during puberty. Hair will look dull and limp and it is difficult to style because the oil makes it heavier. It also gets dirtier more quickly than normal hair because it attracts the dirt.
Beautiful and healthy hair is about choosing the right hair care products. All you need to make sure is that they are adapted to your hair type and nourish and protect your hair.