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7 Lash Serums To Encourage Healthy, Thick & Long Lashes

Put down the mascara.
Anya Taylor Joy

Our lashes go through a lot in their short 10 week life span, which is why it’s so important to take care of them from day one.

Lash conditioning is especially important if you regularly put your lashes through the ringer with cosmetics and skin care, and we’re not just referring to you lash extension devotees out there either.

In fact, even if you only wear a coat or two of mascara everyday, your makeup could still be affecting the health of your lashes. Plus, a vigorous cleansing routine can lead to hair fall, and applying falsies and layers of lash glue on the weekend can weaken the hairs too.

Just like the hair on your head, it’s important to incorporate products into your lash care routine that help to nourish, repair and strengthen the hair shaft, whilst still being gentle enough to not irritate the delicate and sensitive eye area.

Looking for lash serums that incorporate ingredients that promote healthier lash hairs such as castor oil, biotin, panthenol, vitamin E, and hyaluronic acid is a great place to start, but we’ve also taken the liberty of sourcing some of the best-sellers in the category for you to add into your daily routine. Ahead, seven lash serums marie claire rates for encouraging healthy, thick and long lashes.

2024’s top lash serums

  1. RapidLash Eyelash Enhancing Serum, $49.95, Amazon Australia
  2. The Ordinary Multi-Peptide Lash And Brow Serum, $25.90, Priceline
  3. Lancôme Cils Booster Lash Serum, $54, Adore Beauty

The best lash serum 2024

01

RapidLash Eyelash Enhancing Serum

from $49.95 at Amazon Australia

Best for: Rehabbing lashes after extensions

This pick is an Internet favourite for reviving post-lash extension lashes because it’s pumped full of advanced polypeptides, which help to repair and grow brittle, weak, thin and short lashes.

Sizes: 3ml

Key features:

  • Suitable for repairing lashes after lash extension removal
  • Repairs brittle and weak lashes
  • Strengthens and fortifies thin lash hairs
  • Helps to thicken and lengthen short lashes
  • Promotes new lash growth

Available at:

02

The Ordinary Multi-Peptide Lash And Brow Serum

from $25.90 at Priceline

Best for: Sparse lash growth

If you have an issue with sparse lash growth or lashes that don’t look uniform as they grow, we’d recommend helping them along by regularly applying this lash serum. It works to promote new growth, whilst ensuring your lashes look thick, full and healthy too.

Sizes: 5ml

Key features:

  • Suitable for sparse lashes or brows
  • Promotes new growth
  • Promotes a more uniform lash look
  • Lashes look fuller and thicker
  • Contains 11 active ingredients, including four peptide complexes and natural extracts

Available at:

03

Lancôme Cils Booster Lash Serum

from $54 at Adore Beauty

Best for: Thin, fragile lashes

Infused with a proprietary lash conditioning complex, this luxurious answer to an eyelash serum from Lancôme bathes each lash hair in a revitalising enrichment of ingredients, which repair the hair fibre and promote denser, thicker and healthier looking lashes over time.

Sizes: 4ml

Key features:

  • Infused with amino acid-based Kerasolution Complex
  • Repairs the hair fibre
  • Promotes denser, thicker and stronger lashes in just four weeks
  • Prevents hair fall
  • Tested on sensitive eyes by ophthalmologists

Available at:

04

Dior Diorshow Maximizer 4D Lash Primer

from $63 at MYER

Best for: Wearing under mascara

Committed to lash growth and don’t want to skip a day? This mascara-friendly primer-serum is easily incorporated into your daily makeup routine without affecting the performance of your eye makeup. In fact, it improves the wear time of mascara.

Sizes: 10ml

Key features:

  • Volumises, curls, lengthens and defines lashes
  • Infused with floral extracts
  • Balm texture coats lashes in a dense and airy film
  • Nourishes and fortifies lashes day after day
  • Promotes longer, smoother and more supple lash hairs

Available at:

05

Tweak Cosmetica Lash & Brow Growth Serum

from $79.95 at Tweak Cosmetica

Best for: Fuller lashes

Enriched with peptides, which encourage keratin production (AKA the very stuff that your lashes are made out of), this lash-conditioning serum promotes a fuller fan of lashes that’ll look like falsies with just a lick of mascara.

Sizes: 3ml

Key features:

  • Infused with a potent blend of natural peptides
  • Promotes keratin production
  • Enhances lashes for a fuller, thicker lash look
  • Works to boost lash length and thickness

Available at:

06

UKLASH Complex Peptide Eyelash Serum

from $88 at ASOS

Best for: Lengthening

Enriched with a blend of moisturising vitamin B5, circulation-promoting green tea extract and keratin-boosting amino acid peptides, this pick is all about promoting lash growth. It might just help you reach new heights in just a few short weeks of regular application.

Sizes: 3ml

Key features:

  • Enriched with vitamin B5, green tea extract and amino acid peptides
  • Promotes new lash growth
  • Enhances lash length
  • Nourishes and conditions lash hairs
  • Apply to the root of the lash in the evening for best results

Available at:

07

Body Blendz Lash & Brow Oil

from $25.99 at Body Blendz

Best for: Lashes and brows too

After a multi-tasking product that you can use all over your lashes and brows in one quick stroke? This lash and brow oil contains nourishing ingredients such as argan oil and vitamin E, which work to promote healthy hair and new growth.

Sizes: 10ml

Key features:

  • Enriched with nourishing argan oil and vitamin E
  • Promotes healthy brow and lash hairs
  • Promotes new growth
  • Conditions the delicate skin around the eyes and brows
  • Use in the evening for best results

Available at:

Are lash serums safe?

Most lash serums are safe to use around the eyes and undergo comprehensive testing methods to ensure they do not cause eye irritation. However we’d recommend steering clear of lash serums that include ingredients such as prostaglandin analogs like bimatoprost, which can cause irritation or even changes in eye colour.

Is it okay to use lash serum everyday?

It’s perfectly safe to use a lash serum everyday but we’d recommend applying it as the last step in your evening skin care routine as most lash serums can affect the performance of eye makeup. If you’re committed to wearing a lash serum morning and night, we’d suggest finding a mascara primer formula with additional lash conditioning benefits that has been designed to be worn under mascara.


Looking to save money on a lash serum? Check out our coupon codes for David Jones, Amazon Australia and more.


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Main image credit: @anyataylorjoy

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