and how long will it take?

No, it wont make your hair grow faster. As far as I know, nothing u do to ur hair externally can make it grow faster. It will just help it be healthier as it grows. You could take multivitamins to make sure your hair gets all the nutrients it needs but doesn't always get from your diet. That should help it a bit. But don't expect an inch of growth in a month.

yes it will i had really short hair after having it all cut of and now for about 2 mouths i have been using Main and Tail and now my hair is nealy down to my bottom it has grown so much its had to belive!!!!!!

i have used horse shampoo and in 3 months my hair grew 4 inches everyone thinks i have extensions but i don't. i recommend this product .