Our newest advanced formula GladGirl® 5 Star Flexi Bond Eyelash Extension Adhesive is designed for those customers with active lifestyles. The longest-holding medical grade glue available for applying flare (aka cluster lashes) and pre-made eyelash extension fans. A rubberizing agent gives this glue its flexibility which helps lashes last longer. With a setting time of 3-4 seconds and 4-5 weeks retention, this glue is a game changer as it can be used for both short term and long-term use with clusters as well as single strand lash extensions. *CUSTOMERS NOTE* This product is for professional use only and should never be used on oneself. Please read the full disclaimer below before purchasing.