We're the largest manufacturer of ginger extracts in China, the following are the common specifications and customized ones also available: Ginger Oil: gingerols 10-15% Ginger Oil /WS: water soluble, gingerols 3% Aroma Ginger Oil: 100% volatile oil, ginger essential oil Ginger Oleoresin: gingerols 25-30% Liquid Gingerols: gingerols 40%-50% Ginger Root P.E.: gingerols 5%, 6%, 10%, 20% Ginger Root P.E./WS: water soluble, gingerols 1%