This Power Adhesive for Eyelash Extensions has a quick drying time of 0.3 seconds. It is only for professional use and ideal for the lash artist. Because of the quick drying time you can move quickly without the lashes getting stuck together Liquid in texture. Because of the liquid texture clumping is less likely. You can get just the right amount of glue on the extension to get the perfect bond. INGREDIENTS：Ethyl cyanoacrylate ,PMMA ,Hydroquinone ,Carbon Black Setting time：0.3 Seconds Durability：8 weeks Optimal temperature for use：68-72F Optimal humidity for use：40%-60% Care Instructions: HOW TO USE:     Shaken side to side NOT up and down     Shake before each use     Shake for 20 seconds to ensure ingredients are well mixed     If the glue is not well shaken will result in retention issues     Changed every 20-30 minutes and a new drop dispensed into a new glue ring or on a new area on a jade stone or crystal stone     Never dispense adhesive on top of the previous drop  Note: The glue can be kept unopened for 6 months, and the best results can be achieved within 2 months after opening.