Its fatty acid make up is...
5 to 7% palmitic acid (saturated, C16)
3 to 6% stearic acid (saturated, C18)
16 to 36% oleic acid (unsaturated, C18:1)
61 to 73% linoleic acid (unsaturated, C18:2)
It can contain up to 700 mg per kg Vitamin E, 500 mg in the form of the alpha tocopherol and 100 mg in the gamma tocopherol.
Unfortunately, with all those double bonds in the linoleic acid, it doesn't have a long shelf life - 3 to 6 months. The high levels of Vitamin E help with oxidation, but not enough to overcome the double bonds. If you buy the high oleic version, you're going to lose all the benefits of the linoleic acid (but gain those of the oleic acid, so it's not all bad!) With these high levels of Vitamin E, you're going to get the goodness offered by the vitamin - softening of the skin, alleviation of dry skin, the usual retention of water, plus anti-inflammatory benefits!
Another bonus of sunflower oil is the cost - it's one of the least expensive oils you can buy at $7 to $10 a pound.
It's not considered a comedogenic oil, so it is good for facial lotions. Not only is it light, but it is also thought to help with acne! (I definitely recommend it for acne - it makes your skin feel moisturized and very soft!)
Join me tomorrow for some ideas on formulating a facial moisturizer with sunflower oil!