About this item 2 in 1 Lash Bond and Seal: Double-headed design, one side is bond, with spiral mascara brush head that helps apply glue more evenly, as easy as applying mascara. The other side is the lock, which helps to form a protective layer on the grafted lashes and effectively improves the adhesion of the bond. Mild Formula: This lash glue uses mild and advanced formula, non-irritating, can hold false eyelashes firmly. Sulfate free, BPA free, Latex-free, Alcohol-free and cruelty-free. Suitable for sensitive eyes, not damage your natural lashes or irritate your eyes. Added vitamin E in Sealer that can locks your lash extension into place. Easy Application: First, curl up your natural lashes with the lash curler before applying; Second, use the BOND to brush your natural lashes just like using mascara. Third, pick up cluster lashes with applicator and gently apply them underneath the natural lashes. Finally apply a thin layer of LOCK for reinforcement. Super Strong Hold Glue: Super strong hold for at least 72 hours, waterproof, sweat-resistant, no clumps and no smudges. And the lash seal can form a protective coating on the surface of lashes, extend the life of eyelash extension. Never worry about false eyelashes falling off suddenly. Quality Assurance: We attach great importance to product quality. If the product has any problems or you have any other suggestion, please be free to contact us, we will reply to you immediately after receiving your email. Customers' satisfaction is our greatest pursuit.