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Do Lash Serums Actually Work? An Expert Guide

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The beauty market is flooded with various products that promise to make lashes longer and thicker, including a range of lash enhancers. But one question always arises, "Do lash serums actually work?" In this comprehensive guide, we will delve into what lash serums and enhancers are, how they work, as well as their overall safety.

beauty salon lash serum growth

What Are Lash Serums?

The science behind eyelash serums.

Eyelash serums typically contain potent ingredients that boost eyelash growth and fortify the lashes. Some of the prevalent ones include:

  • Peptides: These are short chains of amino acids that serve as the foundational blocks for proteins like keratin, which is crucial for lash health.

  • Biotin: A staple in many serums - Biotin fortifies the hair shaft, leading to reduced lash fall.

  • Natural Extracts: Ingredients from naturally-sourced materials such as green tea, pumpkin seed and nettle extracts that nourish and hydrate the lashes.

It's worth noting that not all serums are the same. Some are specifically formulated for those with sensitive eyes that exclude certain ingredients to mitigate irritation.

Comparing Eyelash Serums

There's a diverse range of eyelash serums, broadly falling under specific main categories:

1. Prostaglandin-based products (lengthening):

Products that primarily promote eyelash growth and lengthening.

Pros - Effectively stimulates eyelash growth. Often gives clear results.

Cons - Side effects may be reported and they are often expensive.

2. Moisturising products:

Keeps lashes healthy by providing moisture. Usually contains biotin and hyaluronic acid.

Pros - Maintains healthy lashes and is non-irritating.

Cons - Limited effects on lengthening and thickness.

3. Density-enhancing products:

Focuses on lash thickness and density without much lengthening. Usually contains ingredients such as peptides.

Pros - Gives the lashes a thicker, denser appearance.

Cons - Minimal lengthening effect.

4. Organic Products:

Products are made exclusively from natural ingredients without the use of any chemical substances.

Pros - Less allergy and irritation generally induced by chemical ingredients.

Cons - Often takes longer to work.

5. Products for sensitive skin:

Using non-irritating ingredients designed to reduce allergic reactions.

Pros - Less allergic reactions and irritation.

Cons - May have a milder effect and may not be as fast-acting.

6. Curling enhancement products:

Contains ingredients that naturally curl the lashes.

Pros - Helps to maintain a natural curl.

Cons - Limited effects on lengthening and density.

7. Nourishing products:

Contains high concentrations of vitamins and minerals to maintain the health of the lashes.

Pros - May help maintain healthy eyelashes.

Cons - Less pronounced growth effect.

8. Multifunctional products:

Products that perform several functions at once, such as lengthening, increasing density and moisturising.

Pros - Multiple benefits (e.g. lengthening, increasing density, moisturising) for an all-in-one application.

Cons – The effects may diminish.

*Each category has its own specific advantages and disadvantages, so it is important to choose according to your needs.

These are the main types found on the market and individual products may cover more than one category. New categories may also emerge as new technologies and ingredients are developed.

ADVANCED.byK Lash & Brow Serum
ADVANCED.byK Lash&Brow Serum

How Do Our Lash Serums Work?

1. Amino acids and peptides - Our serums boast a rich concentration of amino acids and peptides. These compounds stimulate the eyelash follicles and hair matrix cells, promoting a powerful enhancement.

2. Moisturising ingredients - Such as hyaluronic acid and plant extracts which soften lashes and prevent breakage.

3. Density and thickness - Contains ingredients that give volume to the lashes, so they perfect for growing longer, denser and thicker lashes.

4. No prostaglandin preparations - Our serums are free from prostaglandin and hormonal preparations. They are also paraben-free and designed to minimise skin irritation.

5. For Lash Artists - This serum was developed with the aim of creating a lash base that is easy for lash artists to apply on. Thus, it is highly rated by many professionals.

Based on the above five points, our eyelash serum provides excellent results for both 'lash enhancement' and 'maintenance'. In particular, the fact that these effects are achieved without the utilisation of prostaglandin preparations is exceptional.

Are Lash Serums Lash Extension Friendly?


For eyelash extensions to attach properly, it is vital that your eyelashes are healthy. Healthy eyelashes are supple and less likely to break. You’ll find that our serums contain many moisturising ingredients.

It is said that well-hydrated lashes are more resistant to extension fall out than dry lashes. Not only does this increase the longevity of the extension glue being firmly attached to the lashes, but it may also strengthen the overall retention of the extensions.

Expected Results and Duration of Use

Consistent use for 6-8 weeks generally results in clearly better outcomes. However, results may vary from individual to individual. Please refer to the product instructions for use as each product has its own specific instructions.

Lash serum before and after result

Why Lash Serums are Worth the Investment

Eyelash serums are an effective beauty product for many people. Especially for those with naturally short or thin eyelashes, eyelash serums can make a big difference (*results vary depending on the aforementioned categories).

However, the key to getting the most out of them is choosing the right product, using it correctly and continuing to use it. There are many options on the market, so choose the product that best suits your needs and budget.

If you are looking for a more permanent solution, eyelash serums are an effective and safe choice. Their unique combination of ingredients not only promotes the growth of your own eyelashes but also maintains their natural aesthetic appeal. Eyelash serums are a valuable addition to your beauty routine.


Lash serums and enhancers, particularly when questioning, 'Do Lash Serums work?' can indeed be a game-changer for those seeking to embrace longer, fuller lashes. Among the top-performing products in the market is ADVANCED.byK's Lash Serum. Specially formulated with biotin and multi peptides, our serum not only promises lash lengthening but also ensures they stay strong and fuller for longer. Many users have vouched for its effectiveness, seeing noticeable results in 8 weeks. Whether you're a lash artist looking to recommend products to your clients, or someone just hoping for a more enhanced and luminous lash look, ADVANCED.byK's serum might just be the solution you've been searching for.

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