I have a dry, flaky scalp. Ihave used this scalp serum a couple times now and it has definitely helped me with my itchy scalp. But it's too early to say whether it has any long term effects, but worth giving it a try. The scent is also noteworthy: it is not crazy strong but I can smell it on me/my hair. Its smells minty and sort of like teetrea oil. I don't love it but it doesn't bother me either.