Water-based soft-bond copolymer. Formulated by Professional Hair Labs under the auspices of a team of chemists who develop surgical adhesives, this soft-bond adhesive provides several weeks of hold. Now you can have peace of mind and confidence that your bonding adhesive will hold up to the most intense climates. GhostBond 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. Not for use with monofilament or lace foundations.