Same as regular ghost bond except that this series has better resistance from wet/water Ghost Bond XL™ was specially formulated by Professional Hair Labs. With new improved features which include, extra moisture protection and higher melting point, you can have peace of mind and confidence that your bonding adhesive will hold up to the most intense climates. formulated under the auspices of a team of chemists who develop surgical adhesives. Contains no latex, no harsh solvents or any of the irritants frequently found in cheaper formulations. It has been specially formulated for oily scalps, high humidity, and heavy perspiration. Ideal for attaching your lace or skin system to your head.