The hair can be considered as oily if it has a greasy appearance from 2nd to 3rd day after shampooing. The secretion of sebum by the sebaceous glands of the scalp causes the oiliness. The secretion of sebum is controlled by androgens which are present in small quantities in women.
Source : https://goo.gl/1OgGlW
Visit our infotainment partner : http://Wirally.com
Subscribe For More Health Tips: https://goo.gl/Jqpbgt