Beau ideal House of Beauty's Ideal Primer is made to prepare the natural lash for the lash extension adhesive. It's used in conjunction with our Ideal Adhesive to help the lash extensions last longer. Beau ideal House of Beauty's Ideal Adhesive is our strongest bonding adhesive yet! Our Adhesives are perfect for Classic or Volume style lash extensions. Retention lasts up to 5 weeks! Professional use only. Not to be used on strip lashes or Cluster lashes.