The Journal of Skin Pharmacology and Physiology just published the results of a randomized control trial that found oral supplementation with raw flaxseed oil may reduce skin sensitivity and improve skin barrier function and overall condition.  The subjects received either flaxseed oil or sunflower oil daily for 3 months. Flaxseed oil was associated with a significant decrease in skin roughness and scaling, as well as a significant increase in skin hydration and smoothness. The authors concluded that flaxseed oil supplementation modulates skin condition.