Potentially allergenic ingredients
These nail polishes contain acrylate copolymer, which is generally considered safe for most people, however those with acrylate allergies can experience reactions from the acrylate copolymers. I am very upset to discover this nail polish has indeed caused reactions for me which went away after removal… therefore I can not use it. It’s a shame because the product is very beautiful and it does last. It looks like I will have to switch to Sally Hansen’s Pure line, which does not contain acrylates of any sort. But I hope that one day Sienna will offer a polish that does not contain acrylates with this in mind, as many women are allergic to them (generally from lash or nail extensions)