Royal Comb Oil with Indian Herbs: The oil is applied to the hair or mixed with henna or sidr Benefits of Comb Oil: Red Comb Oil contains a unique formula that fights hair loss and helps strengthen hair follicles, thicken hair and lengthen it due to its combination of 18 carefully selected herbs. Nourishes the hair and provides it with many nutrients that make it stronger, denser and thicker, so girls who suffer from thin hair are advised to use Comb. Comb oil has a beautiful and fragrant scent that gives the head and hair a beautiful scent that lasts for a week. Comb oil is used for all ages.