Ultra-Hold is the most popular adhesive among lace wig wearers. Many love it for the strong secure hold it provides when used correctly. Some have been known to wear an application up to 6 weeks when using Ultra Hold. When used correctly on average a 3-6 week hold should be achievable please note that many factors will affect how long of a hold you achieve including your body chemistry lifestyle and application technique. Ultra-Hold contains Toluene until it has dried.