Grape Seed Oil:
Carrier Oil. It is a polyunsaturated oil, and contains beneficial compounds such as linoleic acid. This oil is really lightweight so it absorbs quickly and doesn't leave the skin feeling greasy. It contains flavonoids, which can help inhibit allergic reactions and is considered to be nonirritating, so again, it's less likely to cause skin irritation or allergic reactions. It contains antioxidants that help protect the skin against damage from free radicals. Grapeseed oil protects collagen which is a structural protein required for healthy skin support, and it is thought it may also encourage the production of elastin and hyaluronic acid in the skin.
Highly allergic people generally do not exhibit skin reactions to this oil, as they often do when using other oils (however in Herbal Spray, this benefit is outweighed by the fact that the other essential oils we use can cause allergic reactions in sensitive individuals). Because some cosmetic grade oils may contain stabilizing chemicals, we use food grade carrier oils.