It is a very good treatment. I have to say when I just used it with the conditioner I was not impressed. Then I found out the best way to max the result: I used extreme shampoo, then one tube of this, followed by extreme rescue force and extreme conditioner. The result was amazing! My have fine hair with extreme bleach to blonde. so if your hair is this type then redken is for you. P.S. I find kerastase not good for my hair type so save your money and invest in Redken ; p

I am a hairdresser and this is one of the bestsellers in my salon as a lot of my clients like having blonde hair but they do not like how their hair feels when it has been bleached. as the name states it is extreme. just for use by people that have very damaged hair whatever you may have done to it. it must be very damaged and your hair must not be thick or coarse if it is try something else first. reason being this is very high in protein which is very good at rebuilding damaged hair and the protein in it will just make thick and coarse hair even thicker and may make it feel dry/brittle. if you do have thick hair that is damaged try the smooth range as that has alot of moisture in it which is good for thick hair and will not make it any thicker.

After I had a build up of black dye stripped from my hair andre-coloured it a light brown, my hair became very weak and brittle, coarse to the touch and an all round ugly mess! I usually use Kerastase green range when my hair gets this bad, but read about this Extreme range and decided to give them a go - and I'm very pleased I did! I didnt find the scent too unpleasant, it's more clinical than most, but not bad. I used it as directed, after the Extreme shampoo and before the Extreme conditioner. I can honestly say this range has transformed my hair after one application - I just hope it lasts!

I have a underactive Thyriod and what seems to get the brunt of it is my hair! This product, along with the Shampoo and Rescue Force, really helps get my hair looking good and shiny - my waves come back and I dont look like I have been in a open top car without a hat/hair band!!!!

the best product ever for damaged hair. i bleached my hair, then i got a perm, colored it (didnt like it) bleached and colored again. this product saves my hair every time i do something stupid :-)