Walnuts are a good source of vitamin B, which is an essential vitamin for easing stress and boosting mood. Walnuts are great for people with dry skin. Applying walnut oil can really help in providing nourishment to dry skin. It not only moisturizes the skin but also provides a radiant glow.Walnut shell powder works into a gentle lather, releasing skin-smoothing natural walnut shells. Walnut shell powder work over your entire body - even the toughest, driest skin spots will be scrubbed away to reveal newer, softer skin.