STRONG HOLD & LONG-LASTING GLUE - Most glues don't last long enough, or if they do, they can irritate your eyes. We've spent years developing a glue that lasts long but is perfect for sensitive eyes. Our formula is cyanoacrylate and formaldehyde free, which are chemicals that may cause allergic reactions. Our glue will last for multiple days without issue! WATERPROOF & SWEATPROOF - Whether you are taking a shower, finshing up an intense workout class, or anything in between, our glue will continue to hold strong throughout so that you can continue to look your best. PRECISION BRUSH TIP APPLICATOR - We've rigorously developed and iterated on our brush to make applying super easy and convenient. The tip allows for very precise application, and it doesn't leave any residual glue on your natural lashes. To apply, apply a thin layer of our bond on the base of your lashes. Then apply the lashes you'd like on top. Finally, finish with a light coat of the sealant. Discover the secret to all-day flawless lashes with our innovative 2-in-1 lash bond & sealant. By creating a cushion underneath the lash line, our tool shields and nurtures the roots of your lashes while also sealing them, guaranteeing their longevity.