The vegetable oils like grapeseed, avocado and camellia are excellent. Even Canola and olive oils will work. But don't overlook the least expensive very effective and guaranteed oderless USP grade mineral oil at your local drug or grocery store. Dermatologist recommended, it is still found in some of the worlds finest moisturizers for a reason. The so called pre-shave oils have simple, inexpensive ingredients that in my opinion are a rip-off. Buy and mix your own. It is fun and far less expensive and most can double as a blade oil for your carbon steel razors.