safe ?

I was given some Sanctuary products as a present recently. I used the Body Scrub and didn't really like it.Looking at the VERY SMALL print I noticed in ingredients Polyethylene,which I presume gives it the lumpy bits . Think I have heard that this and other plastics are very harmful to fish etc.I wonder if Sanctuary will say what this PV is doing in their products - I certainly won't buy anything with Santuary name on it .