I allowed the person to post, read it before any of you saw it, just because it is relevant to the initial thread, and answers the original poster's question, and you never know if someone might find Pet Talk by Googling that. This person obviously did, and maybe others will.

I would never buy the stuff, but some people obviously do!

And any acid or base substance can be corrosive, it's such a nasty oil I wouldn't be surprised if it would removed certain tattoo inks, but know it doesn't remove freckles! I don't actually"get" poison ivy - of all the allergies I have, that isn't one - but have seen others deal with it.