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What is A Lash Sealant and Why is It Important?

Lash sealant

Lash sealant is a product that can help you maintain the beauty and longevity of your eyelash extensions. It is a water-soluble, oil-free, and functional aftercare product that forms a protective barrier over the lash extensions and the lash glue, preventing them from being damaged by external factors such as dust, humidity, water, oil, and sweat.

Lash Sealant

In this short post, I will explain what lash sealant is, its benefits, and how to apply it properly.

What are the benefits of using lash sealant?

Using lash sealant can provide the following benefits for your eyelash extensions:

  • It extends the life of the lash glue, keeping your extensions locked in place longer. This means you can enjoy your lash extensions for more time and save money and time on refills.
  • It protects your lash extensions and your natural lashes from the elements that can break down the lash glue, such as dust, pollen, oil, sweat, and water. This reduces the risk of irritation, infection, or allergic reactions, and keeps your lashes clean and healthy.
  • It improves the elasticity of the lash glue, making the bond more flexible and resistant to breakage. This prevents your lash extensions from twisting, crisscrossing, or sticking together, which can ruin the look and damage your natural lashes.
  • It enhances the appearance and feel of your lash extensions. It adds a slight shine, volume, and definition to your lash extensions, making them look more fluffy, natural, and glamorous. It also makes your lash extensions more comfortable and lightweight, as it reduces the weight and tension on your natural lashes.

How to apply lash sealant properly?

Lash sealant - there is a correct way to apply it

Applying lash sealant is a simple and easy process, but you need to follow some tips and steps to ensure the best results. Here are some guidelines on how to apply lash sealant correctly:

  • Choose a high-quality lash sealant that suits your preferences and needs. There are different types of lash sealants available on the market, such as clear, black, brush-on, or aftercare sealants. You can consult your lash technician or do some research online to find the best one for you. For example, you can check out the Lash Armor sealant from The Lash Lounge, the Black Diamond Coating Sealant from BL Lashes, or the Lock It In Sealant from BELO Lash.
  • Use a clean, dry, and soft lash brush or wand to apply the lash sealant. You can get a lash brush or wand from your lash technician or buy one online or at a beauty store. Avoid using an eyelash comb, as the bristles may be too harsh or sparse for your lash extensions. You can also use a disposable mascara wand, but make sure to replace it regularly to avoid bacteria buildup.
  • Start at the middle of each lash and gently brush downward and outward, following the natural curl of the lash. Avoid brushing at the base of the lash or the point of attachment, as this can damage the adhesive bond or pull the lash extension loose. Brush the top and bottom of each lash, taking no more than 30 seconds per eye.
  • Apply the lash sealant once or twice a day, preferably in the morning and after washing your lashes with a special cleanser or distilled water. Do not apply the lash sealant when your lashes are wet, as this can cause them to lose their shape or curl. Wait for your lashes to air dry before applying the lash sealant, and never rub them with a towel or a cotton pad.
  • Do not use mascara on your lash extensions, as this can make them clumpy, heavy, and hard to apply the lash sealant. If you do use mascara, make sure to remove it completely before applying the lash sealant, and use a water-based or oil-free mascara that is safe for lash extensions. You can also apply mascara only on the tips of your lashes, and avoid the base or the point of attachment.
  • Do not apply the lash sealant too hard, too fast, or too often, as this can cause friction, breakage, or lash loss. Be gentle and patient, and use a light touch when applying the lash sealant. If you encounter a knot or a tangle, do not pull or tug on it, but try to gently loosen it with your fingers or a tweezer.


Lash sealant is a product that can help you protect, prolong, and enhance your eyelash extensions. By following the tips and steps above, you can apply lash sealant like a pro and enjoy the benefits of having gorgeous and glamorous lashes.

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