The Hair Diagram Bold Hold Extreme Creme is a high-quality lace wig glue that provides a firm hold for up to 2 to 3 weeks. It is safe for scalps and all skin types, thanks to its odorless and non-toxic formula made with latex-free ingredients. This waterproof glue retains its hold even under humid conditions and dries to an invisible layer for a seamless and natural look. It has been lab tested and is skin safe when applied by a certified professional. The convenient 1.3 oz size allows for easy application at home, and it should be stored at room temperatures between 32?F and 90?F for optimal performance.