WHAT IS CYANOACRYLATE
The science behind long lasting lash retention.
If you love lash extensions but have ever been curious about what actually keeps them in place, the answer comes down to one key ingredient: cyanoacrylate. While the name might sound intimidating, it is simply the active component that makes professional lash adhesive work its magic.
How Cyanoacrylate Works
Cyanoacrylate is a fast acting bonding agent that cures when it comes into contact with moisture. In the context of lash extensions, that moisture comes from the air and the natural lash itself. The moment the adhesive is applied and the extension is placed, the cyanoacrylate begins to harden, creating a secure bond in seconds. This quick curing process is what allows lash artists to work efficiently while still achieving precise, seamless results.
Types of Cyanoacrylate in Lash Adhesives
Cyanoacrylate refers to a family of fast-bonding adhesives with different types that vary slightly in strength, flexibility, and curing speed.
Ethyl Cyanoacrylate (Ethyl 2-Cyanoacrylate) – Most common in lash glue; quick bonding with strong, flexible hold; higher fumes and odor compares to others.
Butyl Cyanoacrylate – Slower curing; gentle on sensitive eyes due to lower fumes.
Methyl Cyanoacrylate – Very fast and strong bond; often blended with other types for safe lash use, and generally avoided in reputable professional lash products due to higher toxicity; sometimes found in lower-quality or industrial adhesives.
Safety and Sensitivity
Since cyanoacrylate is a powerful bonding agent, it can release small amounts of vapor during the curing process. For most people, this is completely manageable, but those with sensitive eyes may experience slight irritation.
Lash artists help minimize this by using proper placement, good room ventilation, and high quality adhesives. Extras like anti-allergy gel, nano misting, and low-fume or scented glues can also make the experience more comfortable. We personally love using anti-allergy gel as it’s so easy and simple to use!
At the end of the day, cyanoacrylate is simply the science behind long lasting, beautiful lash extensions. It is what allows each extension to bond securely while still looking soft and natural.
So the next time you are relaxing during a lash appointment, you will know that this tiny ingredient is doing the heavy lifting to keep your lashes looking flawless!


