To write without detailed information on my hair type (a little longer and relatively normal?), I can only say that the shampoo works very well for me. I'm using it now for several months and it is "optimized" brand shampoos in every way. My sense is that the hair become fat even slower than before, at least in no way faster. The consistency and the smell I was initially unfamiliar but not unpleasant. I could since the first use of any discomfort notice (itching, dandruff, etc.). The natural ingredients and the fact that it is produced vegan for me (as a non-vegan) still a plus.
Allen undecided I can only sample rates, I will change it no longer so fast.