Interesting article: www.cosmeticsdesign.com/Formulation-Scie...skin-says-researcher

I for one avoid most essential oils like the plague as my skin is too sensitive and I don't want to take any risks, but it's interesting to see that they are finding that some essential oils which are not generally regarded as being allergenic can become so upon oxidisation or contact with the skin.

It gives me even more reason to avoid brands like Origins, Dr. Hauschka, Dermalogica et al!