Eyelash Extensions

Eyelash Extensions

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Overview

Eyelash extension is a non-surgical cosmetic procedure in which semi-permanent synthetic lashes with desired lengths and curls are attached to your natural eyelashes using a semi-permanent glue to make them look longer, thicker, and darker. The results last for up to 8 weeks. Eyelash extensions may be done using synthetic, silk, or mink lashes. However, you may have to avoid using mink lashes if you are allergic or a committed vegan. Silk and mink lashes usually offer a more natural look and synthetic ones provide a bolder change with longer and darker eyelashes. 

Everything About Eyelash Extensions

Published on | Last updated on 10 Oct 2023

By Medical Content TeamMedically Reviewed by Dr. Thierry Cahuzac

Fact-checked

Eyelash extensions are a cosmetic enhancement technique where synthetic or natural fibers are applied to individual natural eyelashes, adding length, volume, and curl. These extensions are typically made of materials such as silk, mink, or synthetic fibers, and are attached to the existing lashes using a semi-permanent adhesive.

The process of applying eyelash extensions involves a trained professional carefully attaching each extension to a single natural lash using specialized tweezers and adhesives. The extensions are typically customized to achieve the desired look, whether it's a natural enhancement or a more dramatic effect.

Eyelash extensions can offer several benefits, including the appearance of longer, fuller lashes without the need for mascara or other makeup products. They can enhance the eyes, provide a more awake and youthful look, and save time in daily makeup routines.

There are several different types of eyelash extensions available, each varying in material, shape, length, thickness, and curl pattern. Here are some of the most common types:

Synthetic extensions

Synthetic extensions are a type of eyelash extensions that are made from synthetic materials, such as acrylic or polyester. They are usually the most affordable option and provide a dramatic and bold look.

Synthetic extensions are typically thicker, stiffer, and shinier compared to other types of lash extensions. They provide a dramatic and bold look, making them suitable for those who desire a more noticeable and glamorous appearance.

Due to their synthetic nature, these extensions are less flexible and may not have the same natural feel as other types of lash extensions, such as mink or silk. However, they can still enhance the length and volume of the natural lashes, creating a fuller and more defined look.

One advantage of synthetic extensions is that they tend to hold their shape well and have good longevity. They are also less prone to damage from water or humidity compared to natural material lashes.

It's important to note that synthetic extensions may not be suitable for individuals with sensitive eyes or those who prefer a more natural and lightweight feel. In such cases, alternative options like silk or mink extensions may be more appropriate.

Silk extensions 

Silk extensions are a type of eyelash extensions that are made from a synthetic material called PBT (polybutylene terephthalate). They are known for their soft and natural appearance, making them a popular choice among individuals seeking a more subtle and realistic look and a medium level of thickness and length.

Silk extensions are lightweight and flexible, which allows for comfortable wear. They have a slight sheen to mimic the natural luster of real lashes, providing a more natural and blended effect. The fibers used in silk extensions are finer and more tapered compared to synthetic extensions, which contributes to a softer and more natural look.

One of the benefits of silk extensions is their durability and longevity. They have good retention and can last for several weeks with proper care and maintenance. Silk extensions can also be customized in terms of length, thickness, and curl pattern to achieve the desired look.

It's important to note that silk extensions may not be as water-resistant as synthetic extensions, and excessive exposure to water or steam may affect their longevity. However, they are generally considered to be a good option for those who want a balance between a natural appearance and added length and volume.

Mink extensions

Mink extensions are a type of eyelash extensions made from the fur of mink animals, specifically the Siberian or Chinese mink. These extensions are known for their high quality, natural appearance, and soft texture.

Mink extensions are popular because they closely resemble natural lashes in terms of their lightweight and feathery nature. The fine and tapered fibers of mink extensions create a more realistic and subtle look compared to other synthetic options.

Mink extensions offer a variety of benefits. They provide a natural shine and flexibility, making them comfortable to wear. They are also known for their durability and longevity, with proper care and maintenance.

It's important to note that mink extensions are typically more expensive than synthetic or silk extensions due to the sourcing and manufacturing process. However, they are considered a luxurious option by many.

It's worth mentioning that there are also synthetic alternatives available that mimic the appearance of mink extensions without using real animal fur, which are known as faux mink extensions (see below). These synthetic mink extensions offer a similar look and feel while being cruelty-free. 

Faux mink extensions

Faux mink extensions are synthetic lashes designed to mimic the look and feel of real mink fur. They are typically lighter and softer than traditional synthetic extensions, providing a natural and glamorous look.

Faux mink extensions are a type of eyelash extensions that are designed to mimic the look and feel of real mink extensions without using real animal fur. They are a popular alternative for those who want a cruelty-free option that still provides a natural and luxurious appearance.

Faux mink extensions are typically made from high-quality synthetic materials, such as PBT (polybutylene terephthalate), which closely resemble the softness, flexibility, and sheen of real mink fur. The fibers used in faux mink extensions are fine, lightweight, and tapered, allowing for a natural and fluttery effect.

One of the advantages of faux mink extensions is that they are more affordable compared to real mink extensions. They also tend to have better water resistance and durability, making them less likely to lose their shape or curl when exposed to moisture.

Faux mink extensions offer a wide range of customization options in terms of length, thickness, and curl pattern, allowing you to achieve your desired look. They are a suitable choice for individuals who prefer a natural and lightweight feel, as well as those with sensitive eyes.

Volume extensions 

Volume extensions are a type of eyelash extensions that are designed to provide a fuller and more voluminous look. They involve the application of multiple thinner lash extensions to each natural lash, creating a fan-like effect.

Unlike classic eyelash extensions, which involve applying one extension to each natural lash, volume extensions use multiple extensions in a technique known as "Russian volume" or "volume lashing." The extensions used in volume lashing are typically thinner and lighter in weight, allowing the lash artist to create customized fans that are tailored to the client's desired volume and thickness.

Volume extensions offer several benefits. They can provide a dramatic and glamorous look by adding density and fullness to the lashes. The technique allows for more versatility in terms of achieving different styles and effects, such as a natural-looking volume or a more intense and bold appearance.

Additionally, volume extensions can be customized to suit individual preferences, with options for various lash lengths, thicknesses, and curl patterns. The lightweight nature of the individual extensions used in volume lashing helps to minimize any strain on the natural lashes, making them suitable for most clients.

It's important to note that volume extensions require a higher level of skill and expertise from the lash technician due to the intricate technique involved. Therefore, it's recommended to seek a certified and experienced lash artist who specializes in volume extensions for the best results.

Classic extensions

Classic extensions are a type of eyelash extensions that involve the application of a single extension to each natural lash. This technique is also known as "individual" or "one-to-one" lash extensions.

With classic extensions, a lash technician carefully attaches one extension to each individual natural lash using a safe adhesive. This creates a natural and enhanced look by adding length and thickness to the lashes.

Classic extensions offer several benefits. They provide a more subtle and natural look compared to volume or dramatic lash styles. The extensions are tailored to match the client's natural lash length, thickness, and curl, resulting in a seamless and enhanced appearance.

These extensions are suitable for individuals who prefer a more low-maintenance option or desire a more natural everyday look. Classic extensions can enhance the eyes and provide a mascara-like effect without the need for daily makeup application.

It's important to note that the longevity of classic extensions depends on the individual's lash growth cycle and proper aftercare. Regular maintenance appointments, known as refills, are recommended every 2 to 3 weeks to replace any outgrown or lost extensions and maintain a full look.

Pre-made lash fans

Pre-made lash fans are a type of eyelash extensions that come pre-made in a fan-like shape. Unlike handmade volume lash fans, which are created by lash artists during the application process, pre-made lash fans are ready-made and can be directly applied to natural lashes.

These pre-made lash fans are typically made up of multiple individual lash extensions joined together at the base, forming a fan shape. They are available in various styles and sizes, offering different levels of volume and thickness.

The use of pre-made lash fans can help save time during the lash application process, as the lash artist does not need to manually create each fan. It can be a suitable option for lash technicians who are still mastering the technique of hand-making volume lash fans.

However, it's important to note that pre-made lash fans may not offer the same level of customization as handmade volume lash fans. Handmade fans allow the lash artist to tailor the volume, length, and placement of each extension to suit the client's natural lashes and desired look more precisely.

Additionally, pre-made lash fans can be heavier and less flexible compared to handmade fans, which may affect the overall comfort and longevity of the lash extensions.

Hybrid extensions

Hybrid extensions are a popular option in the world of eyelash extensions. Hybrid extensions are a combination of two different lash application techniques: classic extensions and volume extensions. In a hybrid set, the lash technician applies a mix of individual classic extensions and volume fans to the natural lashes. This creates a textured and multidimensional look, with the classic extensions providing length and definition, and the volume fans adding fullness and volume.

The classic extensions are applied individually to each natural lash, while the volume fans consist of multiple lightweight extensions that are applied to each natural lash. The specific combination and placement of classic and volume lashes can be customized based on your desired look and the recommendations of your lash technician.

Hybrid extensions are a great option for those who want a balance between a natural and more dramatic look. They provide a fuller appearance compared to classic extensions but with a softer effect compared to a full-volume set. The combination of classic and volume lashes can help create depth, texture, and a wispy, fluttery effect.

Russian lashes 

Russian extensions, also known as Russian volume lashes or simply volume lashes, are a popular type of eyelash extensions known for their dramatic and voluminous appearance. Unlike classic extensions, which involve applying one extension to each natural lash, Russian extensions involve the application of multiple lightweight extensions in the form of fans to each natural lash.

The term "Russian" refers to the origin of this lash technique, as it was initially developed by lash artists in Russia. However, it has gained popularity worldwide and is now commonly offered by lash technicians globally.

To create Russian volume lashes, the lash technician hand-makes fans by carefully picking up and fanning out 2-6 ultra-fine extensions. These fans are then applied to each individual natural lash, resulting in a fuller and more voluminous look. The number of extensions in each fan can vary depending on the desired level of volume and the health of the natural lashes.

Russian volume lashes offer a range of customization options, allowing the lash technician to tailor the volume, length, and curl pattern to meet the client's preferences. They provide a glamorous, fluffy, and feathery effect that can enhance the overall appearance of the eyes.

It's important to note that Russian volume lashes require a high level of skill and expertise to ensure proper application and prevent damage to the natural lashes. It's recommended to seek out a trained and experienced lash technician who specializes in this technique for the best results.

Russian volume lashes can be a great choice for those who desire a bold and voluminous look, have sparse or thin natural lashes, or want to achieve a more dramatic effect for special occasions or events.

When undergoing an eyelash extension procedure, here's what you can generally expect:

  1. Consultation: Before the procedure, you will typically have a consultation with a lash technician. During this consultation, you can discuss your desired look, preferences, and any concerns you may have. The technician will assess your natural lashes and provide recommendations based on your eye shape and desired outcome.
  2. Preparation: Before the application, your natural lashes will be cleansed to remove any oils, makeup, or residue. This ensures a clean surface for optimal bonding of the extensions.
  3. Application Process

The application process for different types of lashes may vary slightly, but the general principles remain the same

You will lie down comfortably on a treatment bed, with your eyes closed throughout the procedure. The lash technician will use tweezers to isolate each natural lash and carefully attach an extension to it using adhesive. In this technique, which is called classic lash extensions, this process is repeated for each individual lash, resulting in a customized and natural-looking result. 

If the volume or Russian lash extensions are to be used, the lash technician creates fans by picking up multiple extensions (2-8 extensions) with curved tweezers and then applying a small amount of adhesive to the base of the fan. The fan is then placed on the isolated natural lash, ensuring that the adhesive is attached to the natural lash without touching the skin. This technique allows for a fuller and more voluminous look.

In a pre-made lash fans procedure, the lash technician selects a suitable fan based on the desired volume and applies it to the isolated natural lash using adhesive. This technique saves time compared to handmade volume lashes, as the lash technician does not need to create each fan manually.

4. Duration: The duration of the procedure can vary depending on the number of lashes being applied and the type of extensions. On average, it takes about 1 to 2 hours for a full set of eyelash extensions to be applied.

The duration may be shorter if you're getting a refill or touch-up appointment.

5. Comfort and Sensation: The application process of eyelash extensions is generally painless and comfortable. You may feel a slight sensation or weight on your eyelids during the procedure, but it should not be painful.

If you experience any discomfort, inform the lash technician immediately.

6. Aftercare Instructions: Once the extensions are applied, the lash technician will provide you with aftercare instructions. These instructions may include avoiding excessive rubbing or touching of the lashes, keeping them

dry for the first 24-48 hours, and avoid oil-based products or mascara that can weaken the adhesive bond.

7. Results: After the procedure, you will immediately notice the enhanced appearance of your lashes.

The extensions will provide added length, thickness, and curl to your natural lashes, giving you a more dramatic and defined look.

It's important to follow the aftercare instructions provided by your lash technician to ensure the longevity and proper maintenance of your eyelash extensions. Regularly scheduled refill appointments will help keep your lashes looking their best. Here are some essential tips to follow:

  • Avoid getting your lashes wet for the first 24-48 hours after the application. This allows the adhesive to fully bond and set. Water, steam, and excessive moisture can weaken the adhesive and cause the extensions to fall off prematurely.
  • Be gentle when cleansing your face and eye area. Avoid rubbing or pulling on your lashes. Instead, use a gentle, oil-free cleanser and lightly pat or cleanse around the eye area.
  • Avoid oil-based products, including makeup, cleansers, and moisturizers, as they can break down the adhesive and cause the extensions to loosen. Opt for oil-free or specifically formulated lash extension-friendly products.
  • Avoid using mascara on your eyelash extensions, as it can clump the lashes together and make them appear unnatural. If you still desire added volume or length, opt for a specially formulated mascara for lash extensions, but use it sparingly and only on the tips of the lashes.
  • Avoid using an eyelash curler, as it can damage both the extensions and your natural lashes. The extensions are already curled, so there is no need to curl them further.
  • Be cautious when sleeping to avoid crushing or rubbing your lashes against the pillow. Consider using a silk or satin pillowcase, as it creates less friction and helps to maintain the integrity of the extensions.
  • Avoid excessive heat, such as saunas, steam rooms, or hot yoga, as it can weaken the adhesive bond and cause the extensions to fall off prematurely.
  • Gently brush your lashes daily using a clean mascara wand or a spoolie brush to keep them looking neat and prevent any tangling or crisscrossing.
  • Maintain regular touch-up appointments to fill in any gaps or replace any lost extensions. This helps to ensure a full and consistent look.

Remember to consult with your lash technician for specific aftercare instructions tailored to your individual needs. Following these aftercare tips will help prolong the life of your eyelash extensions and keep them looking beautiful.


Eyelash extensions can provide numerous benefits, but it's important to consider both the pros and cons before deciding whether they are the right choice for you. Here are some of the pros and cons of eyelash extensions:

Pros:

  1. Enhanced Appearance: Eyelash extensions can instantly enhance the length, thickness, and overall appearance of your lashes, giving you a more glamorous and defined look without the need for mascara or false lashes.
  2. Time-Saving: With eyelash extensions, you can skip the daily application of mascara or false lashes, saving you time in your beauty routine.
  3. Longevity: When properly applied and maintained, eyelash extensions can last for several weeks, providing a semi-permanent solution for fuller lashes.
  4. Customizable: Eyelash extensions can be tailored to your specific preferences, allowing you to choose the length, thickness, and curl pattern that best suits your desired look.
  5. Natural-Looking Results: When applied by a skilled professional, eyelash extensions can provide a natural-looking result, seamlessly blending with your natural lashes.

Cons:

  1. Cost: Eyelash extensions can be expensive, with initial application costs and ongoing maintenance appointments required every few weeks.
  2. Time and Maintenance: While they can save time in your daily routine, eyelash extensions do require regular maintenance appointments to keep them looking full and fresh. This can be an additional time commitment.
  3. Allergic Reactions: Some individuals may experience allergic reactions to the adhesive used in eyelash extensions. It's important to have a patch test done prior to application to check for any potential allergies.
  4. Risk of Damage: If not applied or maintained properly, eyelash extensions can cause damage to your natural lashes. This can include breakage, thinning, or even loss of natural lashes.
  5. Inconvenience during Activities: Eyelash extensions require some care and caution during certain activities, such as swimming, excessive sweating, or using oil-based products, as these can weaken the adhesive bond and cause the extensions to come loose.

It's crucial to have eyelash extensions applied by a trained and experienced professional to minimize the risk of complications and ensure the best possible results. Consider your lifestyle, budget, and personal preferences before deciding if eyelash extensions are the right choice for you.

The cost of eyelash extensions can vary depending on various factors, including the location, the salon or lash studio, the expertise and reputation of the lash technician, and the type of extensions used. It's important to keep in mind that prices can vary significantly depending on these factors.

On average, a full set of eyelash extensions can range from 100 to 300 or more. This cost typically includes the initial application of the extensions, as well as consultation and customization based on your desired look.

In addition to the initial application, it's important to consider the cost of maintenance and refills. Refill appointments are typically recommended every 2 to 3 weeks to replace any outgrown or loose extensions. The cost of refills can range from 50 to 150 or more, depending on the salon or lash studio and the amount of work required.

It's worth noting that prices can vary significantly depending on your location and the level of experience and expertise of the lash technician. Higher-end salons or studios may charge more for their services. It's important to choose a reputable and experienced lash technician who uses high-quality materials to ensure the best results and minimize the risk of damage to your natural lashes.

During your consultation or when contacting a salon or lash studio, it's recommended to inquire about the specific pricing for the services you are interested in, including the initial application, refills, and any additional services or upgrades. This will give you a more accurate idea of the cost involved and help you make an informed decision based on your budget and preferences.

While eyelash extensions can enhance the appearance of your lashes, it's important to be aware of potential risks and side effects associated with the procedure. Here are some common risks and side effects:

  • Allergic Reactions: Some individuals may develop an allergic reaction to the adhesive or other products used during the application process. This can lead to redness, itching, swelling, or irritation of the eyelids and surrounding area. It's recommended to undergo a patch test prior to the procedure to check for any allergic reactions.
  • Eye Irritation and Infection: If the eyelash extensions are not applied or maintained properly, it can lead to eye irritation or infection. Poor hygiene, improper application, or inadequate aftercare can increase the risk. Symptoms may include redness, swelling, pain, or discharge. It's crucial to choose a skilled and experienced lash technician who follows strict hygiene practices and provides thorough aftercare instructions.
  • Damage to Natural Lashes: The weight of the eyelash extensions and improper application techniques can cause damage to your natural lashes. This can result in lash breakage, thinning, or even loss of natural lashes. It's important to have the extensions applied by a trained professional who understands proper lash placement and uses appropriate techniques to minimize damage.
  • Premature Shedding: Eyelash extensions may shed naturally along with your natural lash growth cycle. However, if the extensions are not properly applied or maintained, they may shed prematurely, resulting in an uneven or patchy appearance.
  • Cosmetic Damage: Improper removal or pulling of the extensions can cause damage to the natural lashes or result in the loss of lashes. It's important to have the extensions removed by a professional to minimize the risk of damage

To minimize the risks and side effects associated with eyelash extensions, it's important to choose a reputable and experienced lash technician, follow proper aftercare instructions, and communicate any concerns or discomfort during or after the procedure. Regular maintenance appointments and proper care can help maintain the health of your natural lashes and minimize potential complications.

How long do eyelash extensions last?

Eyelash extensions typically last between 4 to 6 weeks, depending on the individual's lash growth cycle and proper aftercare. Regular maintenance appointments, known as refills, are recommended every 2 to 3 weeks to replace any outgrown or lost extensions and maintain a full look.

Can I wear makeup to my eyelash extension appointment?

It is generally advised to avoid wearing any eye makeup, including mascara, to your eyelash extension appointment. This helps to ensure a clean and oil-free surface for the adhesive to bond effectively.

How do I shower or wash my face with eyelash extensions?

To shower or wash your face with eyelash extensions, avoid direct water contact for the first 24-48 hours. Use a gentle, oil-free cleanser and downward strokes to wash your face. Pat your face dry and avoid rubbing or pulling on the lashes. Protect your lashes from excessive heat, steam, and oil-based products.

Can I put mascara on eyelash extensions?

It is generally recommended to avoid using mascara on eyelash extensions. Mascara can clump the lashes together, make them appear unnatural, and potentially damage the extensions. However, if you still desire added volume or length, there are specially formulated mascaras designed for use with eyelash extensions. These mascaras are typically water-based, oil-free, and specifically created to be compatible with the extensions. If you choose to use mascara, it's important to apply it sparingly and only on the tips of the lashes, avoiding the base where the extensions are bonded. Additionally, it's crucial to use a gentle, oil-free makeup remover and a soft touch when removing any eye makeup to prevent damaging the extensions