Dabur Mustard Oil. The mustard seed, in which mustard oil is derived from, contains a wide range of beneficial vitamins and nutrients for hair growth including, protein, calcium, omega 3 and omega 6 fatty acids, and vitamins A and E. This powerful concoction helps keep the hair follicles in good condition, and along with the powerful antioxidants present, this natural oil makes for an effective treatment for hair growth.