Jar

It's not too hard to get your hair like that ^,^ Just pick a shampoo and conditioner suited to what your hair needs (in this case, you'd get a type that helps it with oily-ness), wash your hair every third day or so (it's bad for you to wash hair too much)

And brush all the knots out each morning (Also, when drying hair, be gentle, rub it with the towel)

*questions motives because of over suspicious nature*

Whoms motives, exactly?