You may also try Garnier Fructis, it's certainly a cheaper option than Kiehl's (although I adore Kiehl's stuff). While I personally haven't tried it, I've been told that the fruit acids in it work wonders on the hair. I know it's available in London, and it's a European brand, so maybe it's available where you are?
Lala, I am SO excited to hear that there's a Kiehl's store in London now!! Just in time for my move!
Where is it?