Great, thanks for the info and recipe. And great point about the essential oils for skin types. The article link I have on my post touches on what a few different oils do for your skin.Here's mine and, yes, it works equally well as a pre-shave oil and a beard oil:
2 parts castor oil
1 part jojoba oil
1 part olive oil (extra virgin - the stuff made from the really ugly olives)
equal amounts of cedarwood and jasmine essential oils.
Initially, I only used the castor and olive oils but I found it too thick, so I started cutting it with the jojoba oil. Now it's a nice consistency.
Usually, when I make it, I make about 2 ounces and store it in a dark glass bottle to protect it from light. For that amount, 1 "part" is a tablespoon. So four tablespoons of oil in total and about eight or nine drops of each essential oil.
But, do some research on the different essential oils because different skin types will benefit from different ones. And don't go cheap on the essential oils. Pay more for quality stuff and you'll find you use less and, in the long run, is cheaper.