Henna is a natural product and there is no specific procedure that needs to be followed with regards to the application Henna application is known to cool the scalp Henna is also used as an ingredient for balancing or controlling the oil production by the scalp and help further in maintaining the pH of the scalp When the pH levels of the hair scalp are maintained, they further ensure that the hair cuticles are sealed Sealing of the hair cuticles makes the hair more lustrous and also improves the elasticity of the hair