Rape Seed Skin Allergy Where Do I Find Grape Seed Oil?

Where do I find Grape Seed Oil? - rape seed skin allergy

I read in a magazine that grape seed oil (not canola oil) for the skin of horses is good. My mare had an allergic reaction to something, but we are waiting on test results come back to say exactly why. It is covered with wounds and bruises. Where can I find and I use it?