How To Know If Lash Glue Is Bad

Are you tired of dealing with pesky, irritating lash glue that just doesn't seem to work?

Spending time and money on lash extensions can be frustrating, only to have them fall out or cause discomfort due to bad glue.

Woman applying lash glue to client

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But how can you tell if your lash glue is bad?

In this article, we'll review some key indicators that your lash glue may be past its prime and what you can do to prevent these issues from happening.

Why Does Lash Glue Go Bad?

One of the main reasons lash glue goes bad is air exposure. When you open a new bottle of lash glue, it reacts with the air around it.

As a result, the adhesive's consistency changes, becoming thicker and harder to work with.

Another reason why lash glue goes bad is due to exposure to moisture. Moisture can cause the glue to clump and lose its adhesive properties.

Stylist holding a bottle of lash glue

If you live in a humid climate, storing your lash glue in a cool, dry place is essential to prevent it from getting exposed to moisture.

Lastly, the quality of the lash glue can also affect how long it lasts. Cheap or low-quality lash glue may not have a long shelf life and can dry out quickly.

Continue reading: TikTok’s Eyelash Hack: Is It A Hit Or Miss?

How Do I Know If My Lash Glue Has Gone Bad?

Using expired glue can lead to severe consequences such as eye infections, irritation, and even loss of lashes.

Here are some ways to check if your lash glue has gone bad:

Expiration Date

The easiest way to know if your lash glue has gone bad is to check the expiration date. Most lash glues have a shelf life of 6-8 weeks after opening.

If you have used the same glue for over two months, it's time to throw it away.

Change In Consistency

Another way to know if your lash glue has gone bad is by checking its consistency. If the glue is too thick or has chunks, it's a sign that it has gone bad.

On the other hand, if the glue is too runny or watery, it's also a sign that it has gone bad.

Unusual Smell

If your lash glue has an unusual smell, it's a sign that it has gone bad.

Fresh lash glue should not have any smell, but if you notice a sour or pungent odor, it's time to throw it away.

Does Not Stick Well

If your lash glue is not performing as it should, it's a sign that it has gone bad.

If you notice that your lashes are not sticking properly or are falling out more frequently than usual, it's time to check your lash glue.

What Are The Potential Risks Of Using Expired Lash Glue?

Using expired lash glue can result in several risks, including eye irritation, allergic reactions, and damage to natural lashes.


Over time, bacteria and other microorganisms can grow inside products that have surpassed their expiry date.

Applying lash glue contaminated with harmful pathogens can lead to eye infections ranging from mild irritations to severe cases.

Allergic Reactions

The chemical composition of expired lash glue can change, potentially increasing the risk of allergic reactions.

Symptoms may include itching, redness, swelling, and eye discomfort.

Possible Toxicity

As lash glue expires, the risk of toxic chemicals forming or being released increases.

Though rare, these toxins can harm the eyes and surrounding skin, potentially leading to more severe health implications.

Damage To Natural Lashes

Another potential risk of using expired lash glue is that it can cause damage to your natural lashes.

As the glue gets older, it might not stick as well and can become clumpy. This can make your real lashes come out or fall off.

If this happens, it can take up to two months for them to grow back.

How Can I Extend The Shelf Life Of My Lash Glue?

To ensure that your lash glue lasts as long as possible, it's important to take proper care of it. Here are some tips to help you extend the shelf life of your lash glue:

Store Your Lash Glue Properly

Lash glue should be stored in a cool, dry place, away from direct sunlight and heat.

Keep it in a drawer or cupboard, and make sure it's not exposed to frequent temperature fluctuations.

You can also store it in the fridge until you're ready to use it, but make sure it's at room temperature before applying it to your lashes.

Keep The Cap On Tight

When you're not using your lash glue, make sure the cap is on tight to prevent air from getting in and drying out the glue.

It's also a good idea to store your glue upside down to prevent air bubbles from forming.

Replace Your Lash Glue Regularly

Even if you take good care of your lash glue, it will eventually expire.

Most lash glues have a shelf life of six months to a year, so make sure to replace your glue regularly to ensure the best results.

You might also like: Can You Use Glue On Magnetic Lashes?

What Are Some Quality Lash Glue Brands?

When it comes to finding quality lash glue, it's important to do your research and choose a trusted and reliable brand. 

According to user reviews, below are a few top-rated lash glue brands that you can count on for a long-lasting hold.


See this product on Amazon.

Often seen as a staple in many makeup artists' kits, DUO offers a range of lash adhesives that cater to different needs, be it clear, tinted, or latex-free formulas.

People like it because it lasts long, and it's good for both those new to makeup and the pros.

House Of Lashes

See this product on Amazon.

Many folks like this brand because the glue is strong and dries clear, making sure lashes stay on for a good while. Plus, it's gentle, so it doesn't bother the eyes much.


See this product on Amazon.

Ardell is another big name in makeup. Their lash glue is known for sticking around for a long time and being easy to use.

They've got a few different kinds, and the waterproof one is especially popular with those who wear false lashes.

In Closing

Taking care of our eyes should be a priority, and that includes being choosy about the lash glue we use.

Whether you're a makeup newbie or a pro, nobody wants to deal with the fallout (literally) of bad lash glue.

As we've discussed, using old or expired lash glue can lead to a variety of problems, from simple irritation to more serious issues like infections.

By knowing what to look for and how to properly care for our lash adhesives, we can keep our eyes looking stunning without unwanted side effects.

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