8 Beauty Editor-Approved Lash Serums To Invest In

·5-min read

From Russian extensions and keratin lash lifts to tinted mascara and magnetic falsies, there are so many products and treatments that boost the length and thickness of scant eyelashes. But as effective and popular as these treatments may be, it’s hard to ignore the allure of lash growth serums.

Currently trending, lash serums boast ingredients such as biotin, hyaluronic acid and peptides, and claim to lengthen and thicken sparse lashes naturally, without the need for makeup, lash glue or a lengthy salon appointment – all in a few weeks. But do they really work? And how do you choose the right one for you?

Ahead, we round up seven lash serums adored by beauty editors, influencers and lash obsessives alike.


At Refinery29, we’re here to help you navigate this overwhelming world of stuff. All of our market picks are independently selected and curated by us. All product details reflect the price and availability at the time of publication. If you buy or click on something we link to on our site, we may earn a commission.

<strong><h2><a href="https://go.linkby.com/WYWIMXIW/uk/en/the-eyebrow-and-lash-enhancing-serum" rel="nofollow noopener" target="_blank" data-ylk="slk:Augustinus Bader The Eyebrow and Lash Enhancing Serum" class="link ">Augustinus Bader The Eyebrow and Lash Enhancing Serum</a>, £115</h2></strong><br><br>At £115, Augustinus Bader's latest offering is one of the most expensive serums on this list, but it definitely has the science to back it up. Made with active ingredients like biotin, polyphenols (a popular antioxidant ingredient in skin care), and Bader's patented <a href="https://go.linkby.com/WYWIMXIW/uk/en/evidence/the-science-of-tfc8/" rel="nofollow noopener" target="_blank" data-ylk="slk:TFC8 complex" class="link ">TFC8 complex</a>, there are some pretty impressive <a href="https://go.linkby.com/WYWIMXIW/uk/en/the-eyebrow-and-lash-enhancing-serum" rel="nofollow noopener" target="_blank" data-ylk="slk:clinical stats" class="link ">clinical stats</a>. In a 12-week trial of 60 participants, lash length increased by 34%, lash thickness increased by 40%, and eyebrow thickness increased by a whopping 55%.<br><br><strong>Augustinus Bader</strong> The Eyebrow and Lash Enhancing Serum, $, available at <a href="https://go.linkby.com/WYWIMXIW/uk/en/the-eyebrow-and-lash-enhancing-serum" rel="nofollow noopener" target="_blank" data-ylk="slk:Augustinus Bader" class="link ">Augustinus Bader</a>

Augustinus Bader The Eyebrow and Lash Enhancing Serum, £115



At £115, Augustinus Bader's latest offering is one of the most expensive serums on this list, but it definitely has the science to back it up. Made with active ingredients like biotin, polyphenols (a popular antioxidant ingredient in skin care), and Bader's patented TFC8 complex, there are some pretty impressive clinical stats. In a 12-week trial of 60 participants, lash length increased by 34%, lash thickness increased by 40%, and eyebrow thickness increased by a whopping 55%.

Augustinus Bader The Eyebrow and Lash Enhancing Serum, $, available at Augustinus Bader
<h2><a href="https://fave.co/3qVrnhN" rel="nofollow noopener" target="_blank" data-ylk="slk:RapidLash Eyelash Enhancing Serum" class="link ">RapidLash Eyelash Enhancing Serum</a>, <s>£39.99</s> £27.99</h2><br><br>The original and, as some might argue, the best, RapidLash uses amino acids, proteins and nourishing oils to encourage length and thickness akin to natural lash extensions. The five-star reviews speak for themselves.<br><br><strong>Rapidlash</strong> Eyelash Enhancing Serum, $, available at <a href="https://www.lookfantastic.com/rapidlash-eyelash-enhancing-serum/10644474.html" rel="nofollow noopener" target="_blank" data-ylk="slk:LookFantastic" class="link ">LookFantastic</a>

RapidLash Eyelash Enhancing Serum, £39.99 £27.99



The original and, as some might argue, the best, RapidLash uses amino acids, proteins and nourishing oils to encourage length and thickness akin to natural lash extensions. The five-star reviews speak for themselves.

Rapidlash Eyelash Enhancing Serum, $, available at LookFantastic
<h2><a href="https://fave.co/3fbt5bW" rel="nofollow noopener" target="_blank" data-ylk="slk:RevitaLash Advanced Eyelash Conditioner" class="link ">RevitaLash Advanced Eyelash Conditioner</a>, £97</h2><br><br>This lash serum works fast and a little goes a really long way. It's filled to bursting with peptides (essential proteins), which are like lash food for stubbornly short hairs. Users have reported a noticeable growth spurt in as little as two to three weeks. <br><br><strong>RevitaLash</strong> Advanced, $, available at <a href="https://www.cultbeauty.co.uk/revitalash-advanced-3-5ml.html" rel="nofollow noopener" target="_blank" data-ylk="slk:Cult Beauty" class="link ">Cult Beauty</a>

RevitaLash Advanced Eyelash Conditioner, £97



This lash serum works fast and a little goes a really long way. It's filled to bursting with peptides (essential proteins), which are like lash food for stubbornly short hairs. Users have reported a noticeable growth spurt in as little as two to three weeks.

RevitaLash Advanced, $, available at Cult Beauty
<h3><a href="https://fave.co/3DInvYU" rel="nofollow noopener" target="_blank" data-ylk="slk:Peter Thomas Roth Lashes To Die For Turbo Nighttime Eyelash Treatment" class="link ">Peter Thomas Roth Lashes To Die For Turbo Nighttime Eyelash Treatment</a>, £89 </h3><br>Peter Thomas Roth's peptide-infused lash potion is a favourite of dermatologist <a href="https://www.instagram.com/drdendy/?hl=en" rel="nofollow noopener" target="_blank" data-ylk="slk:Dr. Engelman" class="link ">Dr. Engelman</a> as it supports lash health throughout all three stages of the hair growth cycle. "As you get older, your hair generally gets thinner and drier and hair loss becomes more common — unfortunately, this also affects our brows and lashes," she tells us. If you're seeing patches or gaps in your lashes, consult a dermatologist who can guide you through your options.<br><br><strong>Peter Thomas Roth</strong> Lashes to Die For Turbo Conditioning Lash Enhancer, $, available at <a href="https://fave.co/3DInvYU" rel="nofollow noopener" target="_blank" data-ylk="slk:Revolve" class="link ">Revolve</a>

Peter Thomas Roth Lashes To Die For Turbo Nighttime Eyelash Treatment, £89


Peter Thomas Roth's peptide-infused lash potion is a favourite of dermatologist Dr. Engelman as it supports lash health throughout all three stages of the hair growth cycle. "As you get older, your hair generally gets thinner and drier and hair loss becomes more common — unfortunately, this also affects our brows and lashes," she tells us. If you're seeing patches or gaps in your lashes, consult a dermatologist who can guide you through your options.

Peter Thomas Roth Lashes to Die For Turbo Conditioning Lash Enhancer, $, available at Revolve
<h2><a href="https://amzn.to/3LNZrGh" rel="nofollow noopener" target="_blank" data-ylk="slk:M2 Beauté Lashes Eyelash Activating Serum" class="link ">M2 Beauté Lashes Eyelash Activating Serum</a>, £139.90</h2><br><br>This lash serum is also on the pricey side but beauty editors and influencers can't get enough of it, and for good reason. Lash growth and thickness is pretty much unrivalled thanks to hair-stimulating ingredient MDN, as well as strengthening biotin and hydrating hyaluronic acid. The key is consistency.<br><br><strong>M2 Beaute</strong> Lashes Eyelash Activating Serum 0.5 ml, $, available at <a href="https://amzn.to/3LNZrGh" rel="nofollow noopener" target="_blank" data-ylk="slk:Amazon" class="link ">Amazon</a>

M2 Beauté Lashes Eyelash Activating Serum, £139.90



This lash serum is also on the pricey side but beauty editors and influencers can't get enough of it, and for good reason. Lash growth and thickness is pretty much unrivalled thanks to hair-stimulating ingredient MDN, as well as strengthening biotin and hydrating hyaluronic acid. The key is consistency.

M2 Beaute Lashes Eyelash Activating Serum 0.5 ml, $, available at Amazon
<h2><a href="https://amzn.to/3R5YB8u" rel="nofollow noopener" target="_blank" data-ylk="slk:Rimmel London Lash Accelerator Serum" class="link ">Rimmel London Lash Accelerator Serum</a>, £18.02</h2><br><br>Regularly treating lashes and brows with this conditioning and strengthening gel serum helps to fill out sparse patches and boost brittle hairs, so they are less likely to break or fall out. <br><br><strong>Rimmel London</strong> Lash Accelerator Serum, $, available at <a href="https://amzn.to/3C0uzPh" rel="nofollow noopener" target="_blank" data-ylk="slk:Amazon" class="link ">Amazon</a>

Rimmel London Lash Accelerator Serum, £18.02



Regularly treating lashes and brows with this conditioning and strengthening gel serum helps to fill out sparse patches and boost brittle hairs, so they are less likely to break or fall out.

Rimmel London Lash Accelerator Serum, $, available at Amazon
<h2><a href="https://fave.co/3BvEYkC" rel="nofollow noopener" target="_blank" data-ylk="slk:GRANDE Cosmetics GrandeLASH-MD Lash Enhancing Serum" class="link ">GRANDE Cosmetics GrandeLASH-MD Lash Enhancing Serum</a>, £62</h2><br><br>This lash serum has countless reviews, with beauty lovers waxing lyrical about the lusciously long yet convincingly natural results in just six weeks. Top tip: take care not to get the formula inside your eye or too close to the lash line to avoid sensitivity. <br><br><strong>Grande Cosmetics</strong> GrandeLASH-MD Lash Enhancing Serum, $, available at <a href="https://fave.co/3BvEYkC" rel="nofollow noopener" target="_blank" data-ylk="slk:Look Fantastic" class="link ">Look Fantastic</a>

GRANDE Cosmetics GrandeLASH-MD Lash Enhancing Serum, £62



This lash serum has countless reviews, with beauty lovers waxing lyrical about the lusciously long yet convincingly natural results in just six weeks. Top tip: take care not to get the formula inside your eye or too close to the lash line to avoid sensitivity.

Grande Cosmetics GrandeLASH-MD Lash Enhancing Serum, $, available at Look Fantastic
This smart lash serum boasts proteins which prompt hair follicles to stimulate and speed up hair growth. Apply twice daily, morning and evening, for lashes that appear wispy and full. <br><br><strong>XXTRALASH</strong> Regenerative Growth Serum, $, available at <a href="https://amzn.to/3BvGfbo" rel="nofollow noopener" target="_blank" data-ylk="slk:Amazon" class="link ">Amazon</a>
This smart lash serum boasts proteins which prompt hair follicles to stimulate and speed up hair growth. Apply twice daily, morning and evening, for lashes that appear wispy and full.

XXTRALASH Regenerative Growth Serum, $, available at Amazon
<h3><a href="https://amzn.to/317L1JJ" rel="nofollow noopener" target="_blank" data-ylk="slk:GrandeLASH MD Lash Enhancing Serum" class="link ">GrandeLASH MD Lash Enhancing Serum</a></h3><br>Patience and consistency are key if you want to see results from any lash product, but in terms of actual formula, GrandeLash gets high marks from both dermatologists and reviewers. "GrandeLash helps condition the lashes, and contains peptides that enhance thickness and length," says Dr. Zeichner.<br><br><strong>Grande Cosmetics</strong> Lash Enhancing Serum, $, available at <a href="https://amzn.to/317L1JJ" rel="nofollow noopener" target="_blank" data-ylk="slk:Amazon" class="link ">Amazon</a>

GrandeLASH MD Lash Enhancing Serum


Patience and consistency are key if you want to see results from any lash product, but in terms of actual formula, GrandeLash gets high marks from both dermatologists and reviewers. "GrandeLash helps condition the lashes, and contains peptides that enhance thickness and length," says Dr. Zeichner.

Grande Cosmetics Lash Enhancing Serum, $, available at Amazon
<h3><a href="https://www.allbeauty.com/gb/en/1208033-revitalash-eyes-advanced-eyelash-conditioner-2ml" rel="nofollow noopener" target="_blank" data-ylk="slk:RevitaLash Advanced Eyelash Conditioner Serum" class="link ">RevitaLash Advanced Eyelash Conditioner Serum</a></h3><br>"Lash serums help by nourishing hair, encouraging and extending growth," explains Dr. Engelman. This ophthalmologist-developed conditioning serum works by using a potent blend of peptides, lipids, biotin, and green tea extract to encourage lash growth.<br><br><strong>RevitaLash</strong> RevitaLash Eyes Advanced Eyelash Conditioner 2ml, $, available at <a href="https://www.allbeauty.com/gb/en/1208033-revitalash-eyes-advanced-eyelash-conditioner-2ml" rel="nofollow noopener" target="_blank" data-ylk="slk:All Beauty" class="link ">All Beauty</a>

RevitaLash Advanced Eyelash Conditioner Serum


"Lash serums help by nourishing hair, encouraging and extending growth," explains Dr. Engelman. This ophthalmologist-developed conditioning serum works by using a potent blend of peptides, lipids, biotin, and green tea extract to encourage lash growth.

RevitaLash RevitaLash Eyes Advanced Eyelash Conditioner 2ml, $, available at All Beauty
<h3><a href="https://www.feelunique.com/p/Bbrowbar-Luscious-Lash-Oil-75ml?curr=GBP&gclid=EAIaIQobChMI2ry10oWm5wIViZntCh3U1QfPEAYYASABEgIagPD_BwE&gclsrc=aw.ds" rel="nofollow noopener" target="_blank" data-ylk="slk:BBB London Luscious Lash Oil" class="link ">BBB London Luscious Lash Oil</a></h3><br>"There are many different lash serums out there, and you need to be careful about the ingredients — and whether they may have short-term positive effects but aren't so good in the long term," says BBB London founder Vanita Parti. Her solve? She created her own dream formula, an overnight lash treatment with castor, jojoba, bamboo, and apricot oils to nourish and strengthen lashes.<br><br> , $, available at

BBB London Luscious Lash Oil


"There are many different lash serums out there, and you need to be careful about the ingredients — and whether they may have short-term positive effects but aren't so good in the long term," says BBB London founder Vanita Parti. Her solve? She created her own dream formula, an overnight lash treatment with castor, jojoba, bamboo, and apricot oils to nourish and strengthen lashes.

, $, available at
<h3><a href="https://www.revolve.com/r/DisplayProduct.jsp?aliasURL=lashfood-phytomedic-eyelash-enhancer%2Fdp%2FLASR-WU22&d=F&countrycode=GB&gclid=EAIaIQobChMIgezLzIqm5wIVzLTtCh16gg30EAYYASABEgI5ovD_BwE&product=LASR-WU22" rel="nofollow noopener" target="_blank" data-ylk="slk:LashFood Phyto‐Medic Eyelash Enhancer" class="link ">LashFood Phyto‐Medic Eyelash Enhancer</a></h3><br>"Lashes just need some love, and hair of <em>any</em> kind loves a break from treatments and makeup," Parti says. LashFood's bestselling formula is 99.49% natural, and contains ingredients like aloe water, soy protein, and ginseng root extract to nourish hairs <em>and</em> calm the delicate skin around the eyes.<br><br><strong>LashFood</strong> Phyto-Medic Eyelash Enhancer, $, available at <a href="https://www.revolve.com/r/DisplayProduct.jsp?aliasURL=lashfood-phytomedic-eyelash-enhancer%2Fdp%2FLASR-WU22&d=F&countrycode=GB&gclid=EAIaIQobChMIgezLzIqm5wIVzLTtCh16gg30EAYYASABEgI5ovD_BwE&product=LASR-WU22" rel="nofollow noopener" target="_blank" data-ylk="slk:Revolve" class="link ">Revolve</a>

LashFood Phyto‐Medic Eyelash Enhancer


"Lashes just need some love, and hair of any kind loves a break from treatments and makeup," Parti says. LashFood's bestselling formula is 99.49% natural, and contains ingredients like aloe water, soy protein, and ginseng root extract to nourish hairs and calm the delicate skin around the eyes.

LashFood Phyto-Medic Eyelash Enhancer, $, available at Revolve
Reviewers claim that this lash serum is best for boosting the thickness, rather than the length, of lashes over time. So if yours are on the scant side, this is one for you. <br><br><strong>Eyelash Emporium</strong> Stunt Double Lash Thickening Serum, $, available at <a href="https://www.superdrug.com/Make-Up/Eye-Makeup/False-Eyelashes/Eyelash-Emporium-Stunt-Double-Lash-Thickening-Serum/p/784172" rel="nofollow noopener" target="_blank" data-ylk="slk:Superdrug" class="link ">Superdrug</a>
Reviewers claim that this lash serum is best for boosting the thickness, rather than the length, of lashes over time. So if yours are on the scant side, this is one for you.

Eyelash Emporium Stunt Double Lash Thickening Serum, $, available at Superdrug
<h3><a href="https://uk.iherb.com/pr/Majestic-Pure-Eyelash-Serum-100-Pure-Natural-Castor-Oil-1-fl-oz-30-ml/89177?gclid=EAIaIQobChMIx-bA74Om5wIVF-DtCh1dpQN2EAAYASAAEgLa1vD_BwE&gclsrc=aw.ds" rel="nofollow noopener" target="_blank" data-ylk="slk:Majestic Pure Castor Oil Eyelash Serum" class="link ">Majestic Pure Castor Oil Eyelash Serum</a></h3><br>"The most important thing is to look at the label," board-certified dermatologist <a href="https://www.mdcsnyc.com/provider/dendy-engelman-md" rel="nofollow noopener" target="_blank" data-ylk="slk:Dendy Engelman" class="link ">Dendy Engelman</a>, MD, explains. "Since there are no guidelines and most [lash serums] are not FDA-approved, look to see if the product is as natural as it is advertised." Her pick? This affordable bottle of 100% organic castor oil.<br><br><strong>Majestic Pure</strong> Castor Oil Eyelash Serum, $, available at <a href="https://uk.iherb.com/pr/Majestic-Pure-Eyelash-Serum-100-Pure-Natural-Castor-Oil-1-fl-oz-30-ml/89177?gclid=EAIaIQobChMIx-bA74Om5wIVF-DtCh1dpQN2EAAYASAAEgLa1vD_BwE&gclsrc=aw.ds" rel="nofollow noopener" target="_blank" data-ylk="slk:iHerb" class="link ">iHerb</a>

Majestic Pure Castor Oil Eyelash Serum


"The most important thing is to look at the label," board-certified dermatologist Dendy Engelman, MD, explains. "Since there are no guidelines and most [lash serums] are not FDA-approved, look to see if the product is as natural as it is advertised." Her pick? This affordable bottle of 100% organic castor oil.

Majestic Pure Castor Oil Eyelash Serum, $, available at iHerb

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