> Probably the alchohol they put in those fragrant oils??

Grapeseed oil is the one I've seen used to dilute it.

> That new organic stuff they get from oranges (peels?)

Yup - limonene.  Extracted the stuff from orange peel in school years back,
and whilst I *can*, it is a lot of effort to go to so I just buy the stuff.

Mind you, I suspect that buying essential oils from places like Body Shop et
al is probably not a cheap way to do it - but I only use small amounts
anyway.  And if you have a cold, eucalyptus & ti tree are kind of effective
for unblocking sinuses too...

Peter

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