What hair product can you use to make your hair grow longer?

my hair's shoulder length and it grows VERY slowly. i used to have extremely curly hair, and about 5 years back i started relaxing my hair but it completely ruined it. now i go to a hair stylist i can trust, and we use the product keratin on my hair every 6 months or so and it relaxes my curls, keeps my hair healthy, and helps it grow. but i was wondering if anyone know any products that can help hair grow quicker also?What hair product can you use to make your hair grow longer?
Try this oil, you have to make it though. The ingredients are good for stimulating hair follicles.

http://www.naturetrend.com/hair-growth-oWhat hair product can you use to make your hair grow longer?
here's a very unique answer,i studied the traditional ';science'; of-for a lack of a better word-herbalism and i heard amazing stories and experiences of how many people got their hair longer in a very short period of time using the extract of the ';Myrtus communis'; herb!!go to http://en.wikipedia.org/wiki/Myrtle_(pla to read more details about this unqiue herb.don't use chemicals to make your hair longer,try out this traditional and natural recipe and see the results for yourself.best wishes!!
go to a mexican store and ask them. they have this really good stuff its like oil that makes your hair grow fast. i had my sholder length and now its past my bobbies and its only been 3 months
theres not really a product for your hair to grow longerr.. take vitamins