I had a little go at using the FAST shampoo & conditioner a few weeks ago and I'm going to write about it from the point of view of how they work as a shampoo & conditioner rather than the growth aspects for a few reasons. 1). My hair grows super fast anyway thanks to it's really good condition and 2). I was sent sachets so I couldn't evaluate from just 1 use.
The conditioner was pretty much the same consistency.
Another thumbs up for me is that this is free from paraben and has had amazing results amongst testers with some saying that growth is visible after just one month and half of the testers saying they had an increased rate of existing hair growth after just 42 days.
I say if you're looking for a mild, scalp-friendly shampoo I can definitely recommend, and if you want to grow your hair fast based on what I've seen I'd say try it! Why not? The shampoo & conditioner together cost £24.99 and most of the shampoos & conditioners I use come to this price or higher, and believe me when I say that using premium haircare brands will DEFINITELY change your hair, and using brands like this just further re-enforces my choice being the right one for me to change to premium! Available from Boots