Theres a new technique in town called underlashing and now Duo has developed a versatile glue for it that lets you use the hack with any of your favorite fringes. Duo Bond & Seal locks any kind of lash in place for days while providing comfortable, non-irritating wear. The dual-ended tube features Black Bond on one side, Clear Seal on the other. Adhering false lashes underneath real lashes conceals the band for the most flawless, lifelike presence possible.