My hair: oily at scalp, dry and coarse at the ends, colour treated, wavy, extremely frizzy.
After each wash I style my hair straight with round brush and dryer.
I was on my quest to find a decent hair line, which would help me keep my hair in "normal" condition. Generally I rarely had bought any hair product twice. It was always something not ok... To drying, to rich, made my hair dull, frizzy, make their condition or appearance worse, etc...
I saw the commercial in magazine and bought the whole line (shampoo, conditioner and styling treatment).
Let me just say, that this line is in use exclusively now (for 2 years).
Nothing before had made my hair look and feel so good. My scalp loves it to.
My hair now: shiny, silky, straight. No flyaways, no frizz, no split ends.
I can go longer between washes, twice a week is enough. I have also noticed, the much less of my hair falls out during washes and my scalp is in very good condition.
If I switch to different shampoo (if it runs out and I forget to get a new bottle) I see the difference right away. Even if I keep the rest of the PhD stuff in the routine.
Cons: I have noticed, that after prolonged use it can build up and make hair dull. My solution: always wash hair twice, first - using klorane and then PhD shampoo. The procedure keeps the pros and gets rid off the cons :)
In my opinion, living proof is a good line, but not if prolonged use. The miracle particles starts to build up upon hair strand and make it look like damaged straw. Moreover the hair start to be gunky and sticky is some way, thus while browdrying or brushing you put more tension than usual which could also be damaging. What I noticed is that to avoid that you need to use really tiny amount of conditiones and styling products, so the next time your hair is being shampooed, all of the residue is gone.
Otherwise you will get build up soon.