What is the Purpose of Lash Sealants?

In the last few years, eyelash extensions have become very popular all over the world. Eyelash extensions are popular amongst women who no longer want to apply mascara every day.

Women (and Men!) who get lash extensions want a hassle-free, just wake up and go morning routine! 

Eyelash extensions can cost up to a few hundred dollars depending on the length, thickness, and type of lashes used. With such a heavy price tag, you want to make your lash extensions last as long as possible! 

To help your lashes go beyond their two-week lifespan, you can apply eyelash extension sealer. 

Eyelash extension sealer will help protect your extensions from water, oil, and sweat, things that naturally break down the glue used to hold your lash extensions in place. A good eyelash extension sealant will also help prevent your lashes from twisting, this also helps to minimize breakage. 

This helps to keep the extensions on your eyes and not on the ground!

If you want to know more about eyelash extension sealers, continue reading our article below. We will cover common questions you may have about this product.

What is Eyelash Extension Sealant?

If you aren’t familiar with eyelash extension aftercare, you may be curious about what eyelash extension sealant is.

Eyelash extension sealant is a protective topcoat that you apply directly to your eyelash extensions. You apply the sealant above the lash line, you brush it against the glue that holds your lashes in place.

The sealant helps create a barrier that repels dust, dirt, and moisture while adding a lustrous shine to the lashes. 

Eyelash sealant helps extend the life of the glue that is used to apply your lash extensions. But, it also helps hydrate your natural lashes and amplify growth! 

Eyelash sealant helps to keep your lash line looking clean and the best it can look in between lash appointments.

Do all Lashes Need Sealant?

You may think that getting eyelash extensions means that you don’t have to worry about getting ready or aftercare. But that isn’t completely true. 

Eyelash extensions are a great accessory, but they do need maintenance to keep them the best they can be. 

Adding sealant to your lashes is not needed, but it is recommended if you want to extend the life of your lashes.

Eyelash extensions last between 2 and 5 weeks, depending on how fast your natural lashes grow and how much exposure you have to the elements. People who sweat more will have a higher likelihood of debonding the glue that holds the lashes in place. This is also true for people who swim or sleep directly on their lashes.

Many people will have their eyelash extensions refilled after about two weeks to keep them looking full.

When you add sealant, you significantly increase the life of your lashes. This reduces the number of refills needed and saves you a lot of time and money! 

The sealant will help reduce exposure to the elements that make your lashes break or fall off. 

How Often Should You Apply Eyelash Extension Glue?

After you have your lashes applied by a professional, you will want to wait at least 48 hours for the lash adhesive to cure and set. Once this time passes, you can apply the first coat of eyelash extension sealant. 

Once your first coat is applied, you can reapply once a day for the best results. But ultimately, the decision for how often to reapply the sealant is up to you. You can choose to apply it every other day, every few days, or once per week. 

Always apply eyelash extension sealant to clean lashes that are free from your natural oils, sweat, or dirt. Use a lash shampoo for optimal results.

Toss any unused eyelash extension sealant after 6 months of opening!

How Do You apply Lash Sealer?

When you are ready to apply eyelash extension sealant, you will want to clean your lashes with a mild soap or eyelash extension shampoo to remove any dirt or residue on the lashes.

Allow your lashes to completely dry, wet lashes will not allow the lash sealer to set properly.

Use the applicator that your lash sealer came with, and remove excess sealant from the tip. You only need a small amount of sealant to apply to your lashes.

Then to apply the sealant, go from just above your lash line up towards the end of your lashes. Similarly to how you would apply mascara.

Once the sealant has been applied to your lashes, use a dry lash wand to brush your lashes. Always use a clean, dry lash brush wand to help minimize the risk of contamination or infection.

What is the Difference Between Lash Bonder and Sealer?

Whenever you are exploring the world of eyelash extensions and everything that goes along with them, you may be unsure about the various products available. 

As you now know, eyelash extension sealer is applied to cured eyelash extensions to help reduce their exposure to oil, sweat, moisture, and dirt. This helps to minimize breakage and increases their longevity.

An eyelash extension bonder is a product that is used during the eyelash extension application. The lash bonder is applied to the lash glue after it is applied to your lashes. The lash bonder helps cure the lash glue so that your natural lash and lash extension bond together.

When Should You Use One Over The Other?

An eyelash extension bonder is used during the initial application of the eyelash extensions. 

Eyelash extension sealant is used 48 hours after your lashes have been set, and can be used daily on your extensions after.

Can I Wear Makeup With Eyelash Extension Sealer?

Even though eyelash extensions minimize the need for makeup, many people still love adding a little extra pizazz to their face when they go out. 

The good news is, you can wear makeup even if you use eyelash extension sealant. You can still add mascara to your lashes, and it is no problem if you want to add eyeshadow or eyeliner to your eyes. 

Always wash your eyes with a mild soap or makeup remover to wash away any makeup at the end of the day. Clean lashes last longer than dirty or contaminated lashes. 

What is the Best Sealant for Eyelash Extensions?

Now that you know what eyelash extension sealant is, how it is applied, and why it is beneficial, you may be interested in buying some for yourself. 

The eyelash extension sealant that we recommend is the BL Eyelash Black Diamond Eyelash Sealant (Amazon Link). This sealant is widely used around the world to help extend the life of eyelash extensions. 70 counties approve and use this product! 

The Black Diamond Eyelash Sealant comes in a sleek tube that gives off premium product vibes. The sealant is tinted black, which helps add color and vibrancy to your already fabulous lashes. 

This brand also offers clear lash sealant. Clear is great for adding a sheen to your lashes while also adding protection.

Not only is this eyelash sealant great for extending the life of your lashes, but it also doubles as eyelash growth serum. Both the clear and black tinted eyelash extension sealant has added B vitamins. Panthenol and biotin are both quality ingredients for this lash sealer.

The panthenol is derived from vitamin B5 and is a natural way to add shine and fullness to your lashes. While the biotin is from vitamin B7, it helps assist with eyelash growth.

Essential acids such as sodium hyaluronate and allantoin have been formulated into this premium eyelash extension sealant. Hyaluronate is a natural lubricant and helps smooth out your lashes. It is a great additive to lash sealant because of its nourishing peptides. 

Allantoin has anti-inflammatory properties that help your lashes stay moisturized and free from breakage.

This eyelash extension sealer also has six natural extracts to help improve hair growth and durability. 

This eyelash extension sealant is made with your safety in mind. It is produced using high-quality ingredients and has been tested in salons across the world. 


If you are the type of person who can’t live without eyelash extensions, you will be impressed when you try eyelash extension sealant. Not only with this product reduce the number of refills needed each month, but it will also help your natural lashes look and feel incredibly soft and luxurious.

Eyelash extension sealant will not only save you hours at the salon but will keep money in your pocket. Try it for yourself and be amazed by how many more eyelashes you retain each week!