Hair - oily
Here are some tips for preventing and treating oily hair:
Hormones affect oil production. Things that affect your hormone levels (such as stress or birth control pills) may also affect the oiliness of your hair.
Habif TM. Hair diseases. . In: Habif TP, ed. . 5th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 24.
Hair follicle anatomy