It starts as a little itch. Then a bit of redness. But by the next morning, you wake up with puffy, swollen eyelids and eyes that won't stop watering.

If this sounds familiar, you aren’t alone.

"Lash Glue Allergy" is one of the most common reasons women stop getting salon extensions. It’s heartbreaking to love the look of lashes but hate the reaction they give you.

The good news? You don't have to give up on lashes forever. You just need to change how you apply them.

In this post, we’re breaking down the science of why salon glue irritates your eyes and why the Underlash system is the game-changer for sensitive eyes.

The Culprit: Why Does Salon Glue Hurt?

Most professional salon lash adhesives rely on a strong chemical called Cyanoacrylate. This is the main ingredient that makes the glue dry instantly and hold for weeks.

While effective, it comes with a downside: Fumes.

As salon glue "cures" (dries) over the first 24-48 hours, it releases formaldehyde fumes. These fumes settle on your eyelids and irritate the delicate skin around your eyes.

"But I never used to be allergic!"

This is the most frustrating part. Lash allergies are cumulative. You might get lashes for years with no issues, and then suddenly, your body decides "enough is enough." Once your immune system develops a sensitivity to the cyanoacrylate fumes, the reaction tends to get worse with every appointment.

Solution 1: The Gentle "Bond & Seal"

If you want lashes that last 10+ days but without the harsh chemicals, our OG System is the answer.

No Harsh Fumes: Our Bond is a flexible, mascara-like adhesive designed for sensitive eyes. It doesn't "cure" hard like salon glue, meaning it avoids those irritating fumes that cause swelling.

It Doesn't Touch Your Skin: With Underlash, you apply the bond to your natural lashes—not the skin. The extension sits about 1-2mm away from your waterline, keeping the adhesive away from your delicate eyelid skin.

Solution 2: The "Zero Liquid" Option (The Quickies)

If your eyes are ultra-sensitive and even the idea of liquid bond makes you nervous, we have an even gentler option: Pre-Bonded Lashes.

Our Quickies Collection features lashes with the adhesive already applied to the band.

Why they are great for allergies:

Because the adhesive is "pre-cured" (already dried) onto the lash band, it is stable. It doesn't need to dry or cure on your eye, which means there are virtually zero fumes. You simply press them on, and they stick. It is the cleanest, simplest way to wear lashes if you are prone to reactions.

Tips for Applying Lashes to Sensitive Eyes

Even with a gentle system, sensitive eyes need extra love. Here are our top tips for a reaction-free application:

Patch Test First: Before applying a full set, put a tiny dot of Bond (or one Quickie cluster) on your outer lashes and wait 24 hours to ensure you have no sensitivity.

Don't Rush: Apply your lashes in a well-ventilated room.

Keep it Clean: Use our Remover to gently take them off. Never pull or tug, as the friction can cause puffiness.

Our "Safe Lash" Promise & Returns

We formulate our products to be hypoallergenic and suitable for sensitive eyes. However, we believe in being 100% transparent: as with all beauty products, a small percentage of customers (approximately 2%) may still experience an allergic reaction.

We want you to love your lash experience—but if something isn’t quite right, we’re here to help.

Our Returns Policy:

Condition: Returns will only be accepted if no more than one set of lashes has been used from your Kit or Quickies box. (If more than one set is used, we cannot process a return).

Timeframe: Requests must be submitted within 30 days of receiving your order.

How to Return: Simply email us at hello@underlash.com.au with your order number and reason for return. Once approved, we will provide instructions.

Ready to Love Lashes Again?

You shouldn't have to suffer for beauty. If you’ve been "red and itchy" for too long, it’s time to switch to a system that puts your eye health first.

For 10-Day Wear: Try the Starter Kit (Gentle Bond & Seal).

For The Most Sensitive Eyes: Try The Quickies (Pre-Bonded & Fume-Free).