GhostBond Classic Invisible Bonding For Poly & Lace Systems (1.3OZ) by Professional Hair Labs PHLGB. Contains No Harsh Chemicals, No Toxic Ingredients, And No Latex So You Can Feel Confident That You Will Get  Superior Hold That Is Safe And Gentle To Your Skin. GhostBond Is Designed To Be Impervious To Water And Skin Oils Which Gives It A Strong Bond That Will Last Up To Four Weeks Through Strenuous Physical Activity, High Humidity, Rainstorms, And Daily Shower.