Red Onion is a great source of Sulfur Sulfur is found within amino acids which are components of Keratin Keratin is known to be sulfurrich are needed for growing strong hair When added to the hair scalp This Oil can provide extra sulfur to support strong thick hair thus helps to stop hair loss and promoting hair growth Sulfur from this oil also helps to promote collagen production Collagen in turn helps the production of healthy skin cells hair growth