Emollient, non-fragrant plant oil that is agood source of omega fatty acids for skin, namely linoleic acid; however, walnut oil is highly prone to oxidation, which makes the right packaging critical. Airless of air-restrictive and opaque packaging is a must.
References for this information:
International Journal of FOod Science and Technology, March 2011, pages 1,276-1,281
Journal of Agricultural and Food Chemistry, June 2008, pages 4,751-4,759
natural moisturizing factor (NMF)