Home Health Castor Oil. Natural Health Begins at Home. Cold Pressed and Cold Processed. Pure, natural emollient oil. Softens and nourishes the skin. Ideal for use in Castor Oil Packs. Excellent for massage into joints and muscles. Castor Oil is a natural emollient that penetrates the surface layers of the skin making it softer and more pliable. The effects of externally applied Castor Oil can be enhanced through the use of a castor oil pack - a piece of wool flannel saturated with the oil and applied to the body.