I find that even the ridiculously expensive handwashes (I recently paid £19 for one that sounded good) suffer from the problem that the scent, however strong and natural at first, begins fading away almost as soon as you break the seal and start using the stuff. I also recently had an expensive gel handwash – sorry, can’t now remember the name – that had turned to water by the time I (quite quickly) got to the bottom of it. Possibly most reliable, in my eperience, is the Faith in Nature citrus handwash, which seems to sell out faster than their others.