Why You Must Keep Your Eyes Closed During a Lash Extension Service

When clients come in for a lash extension appointment, one of the first instructions they receive is to keep their eyes closed throughout the entire service. While it may seem like a small request, there are several important reasons why lash artists insist on this rule.

From eye safety to better lash retention, here’s everything you need to know.

1. Protection from Lash Adhesive Fumes

Lash extensions are applied using a professional adhesive that contains Cyanoacrylate, the main bonding ingredient that makes the extensions last.

As the adhesive transitions from liquid to solid (a process known as curing or polymerizing), it releases a fume. If a client opens their eyes too soon, this fume can cause:

• Stinging or burning sensations

• Watery eyes

• Chemical burns on the whites of the eyes

To prevent irritation and keep the eyes safe, lash artists must ensure their client's eyes remain fully closed until the end of the service—when post-treatment steps like Super Bonder or a Nano Mister are they used to help seal the adhesive.

2. Better Retention of Lash Extensions

Eye watering doesn’t just cause discomfort—it can directly impact lash retention.

Here’s why:

• Lash adhesive needs a controlled amount of moisture (H₂O) in the air to cure.

• Excess water from tears can lead to shock curing, where the adhesive dries too quickly.

• Shock curing makes the bond brittle and weak, causing extensions to shed prematurely.

By keeping eyes closed, clients help their lash artist ensure the adhesive cures correctly, giving them longer-lasting lashes.

3. Safety Around Sharp Tools

During a lash service, artists work with fine, precision tweezers that are often very sharp. If a client suddenly opens their eyes or flinches, there’s a higher risk of accidental injury.

Keeping eyes shut minimizes this risk and ensures the artist can work with focus and precision, giving the client a more comfortable and safe experience.

4. Relaxation & Comfort

While safety is the main priority, there’s another benefit to keeping your eyes closed—it allows clients to fully relax. Lash appointments often take 1–3 hours, making it the perfect time for a mini self-care session or even a quick nap.

Final Thoughts

Asking clients to keep their eyes closed during a lash extension service isn’t just a formality—it’s about safety, comfort, and results. From protecting eyes against adhesive fumes to ensuring maximum lash retention, this simple step plays a major role in a successful lash application.

For Lash Artists:
Encourage open communication with clients. If they feel the urge to open their eyes, ask them to let you know first so you can safely pause.

For Clients:
Trust the process and enjoy the relaxation—you’ll walk out with a gorgeous set of lashes that last longer.

✨ Want to learn more about lash extension safety and technique? Explore our Lash Extension Training Courses or shop professional lash supplies trusted by artists at shop.lashxbrowstudio.com.