I normally don't have an issue with any shampoos/conditioners. I do have a problem with hair dyes though because I have trigimenal neuropathy so real strong whatever on my head will irritate those nerves.

I thought it may have been the copper. I have Very mild Gilbert's. I have never been jaundiced, but i am low on one of my enzymes and I thought that sometimes my body doesn't clear chemicals as it should.

Anyways I remember a few years ago I had a painter paint my house. I told him to use water based paint which he did. But he revarnished all the doors and window frames. That night when I came home I tried to sleep, but I couldn't. At about midnight I drove to a hotel. The smell of the varnish flared my PN badly especially my cranial PN and I just couldn't stand it.

So I am not sure if this pinpoints to anything in particular, as I don't seem to have overt sensitivity to anything in particular and no allergies, but my nerves will get very irritated with certain things such as hair dyes,solvents ect.

Thank you