Walnut oil is high in linoleic acid and helps to regenerate, tone and moisturize damaged or dry skin. Walnut oil is reported to help prevent wrinkles. It is a good choice to use in formulations intended to treat eczema or control dandruff and rough, dry or sunburned skin. Walnut oil is an especially useful in lip balms, anti-wrinkle eye creams, products for maturing skin and body and within bath and massage oils.