A good way to moisturize your skin is to use SMB Organics lotion with essential oils or use your favorite essential oil with a carrier oil. Essential oils should always be diluted, and that's what the purpose of the carrier oil or lotion is.
Jojoba oil is a good carrier that I would recommend. It is technically not an oil but is a liquid wax. The fatty lipids in jojoba oil is the nearest to ours, and it also will not clog pores. About 7 - 10 drops of your favorite essential oil mixed into 1 oz of jojoba oil would be a good start. Remember that some oils are photosensitive. Lavender, sandalwood, geranium are a few good examples of essential oils.