To Alan: I have tried twice to get a message out and I have got to be doing something wrong in the address, or else you all are getting message after message from me.... ...and......all I want to know is "melatonin" what chemical name does this go by in Canada or is it herbal and purchased in a health store.. I hope this makes it this time because even I am getting sick of the question. Thanks Dorothy ([log in to unmask])