Extract from a plant in the Zingiberacae family that has research showing it has soothing and potent antioxidant activity when taken orally and when applied to skin. Ginger extract is generally considered non-volatile, meaning it doesn’t pose a risk of sensitizing skin. In contrast, the oil form of ginger maintains the volatile components (ginger oil contains over 50 such components) that have the potential to aggravate skin with topical use.
References for this information:
International Journal of Preventive Medicine, April 2013, pages S36-S42
Bioscience, Biotechnology, and Biochemistry, June 2011, pages 1,067-1,072
Planta Medica, December 2007, pages 1,525-1,530
Fragrance and Flavor Journal, June 1988, pages 85-90