well, i was listening to BBC World Service and seems that the
Doctor Fish spa in Japan is a hit..
for those who do not know what Doctor Fish are, they're fish that
eat the diseased and other infected areas of the skin... mostly
dead skin..

in an article here => Besonline
they report on the use of these fish in a spa where the patrons
drip their feet into tanks of the fish and the fish eat up the dead
and other messed up skin, leaving the feet cleaned of dead skin..
sort of like a fishy exfoliant 
this has been done in Turkey and other places for ages where the
fish occur naturally in some springs..
if such a spa opens in Singapore, would you go?