Olive oil is one of the best foods in some ways to improve your skin and body.  Some have used it to detoxify their body, but that also requires you to use a certain amount per day for the rest of your life.  For one thing, it could actually improve the digestion mechanisms in the body.  This will allow the food to digest better and it will also give you the healthy fatty acids.  Healthy fatty acids actually help you to improve your skin in general terms while it also provides skin healthy vitamins such as vitamin A.  Olive oil can also help you to absorb these and other vitamins in general terms, while also helping with constipation. 

Finally, it helps specifically in your anti aging efforts in general.  It can reduce the appearance of fine lines and wrinkles partly by killing off free radicals and partly by actually conditioning the skin in various ways.  There are various claims about how the olive oil works.  But it has definitely been shown to moisturize and protect the skin in general terms.  With the vitamins, good fatty acids, and otherwise, olive oil is able to give you the benefits you need and want without such a astruggle that you may otherwise expect.