I have some strawberry generic liquid that has also turned green in colour. I decanted a small amount into a clean brown dropper bottle to carry with me when I travel about 1 month ago. On my last trip I went to use it and it was green (although it smells fine) so I did not use it, and thought no more of it till I read the posts on the JC liquid. I have the original bottle of the liquid, which is from a uk supplier in the fridge and this is still the original colour. The decanted liquid has not been in the fridge and has been subjected to six longhaul flights, sunlight, heat and freezing temps. So I do not think this is just a JC problem with forumla but may be something to do with storage conditions?