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  • Lash Growth Serum - UKLASH
  • Lash Growth Serum + Hair Repair Mask Set - UKLASH
  • Lash Growth Serum + Hair Repair Mask Set - UKLASH
  • Lash Growth Serum + Hair Repair Mask Set - UKLASH
  • Lash Growth Serum - UKLASH
  • Lash Growth Serum - UKLASH
  • Lash Growth Serum + Hydra - Gel Eye Patches Set - UKLASH
  • Lash Growth Serum - UKLASH
  • Lash Growth Serum - UKLASH
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Lash Serum

Our fastest-acting formula

Lash Serum

What it does

Our Eyelash Serum helps to nourish, condition and stimulate hair from the root, resulting in longer, healthier and fuller-looking lashes.

Why it’s special

The unique recipe is fortified with Vitamin B5 (Panthenol), Green Tea extract, and Myristoyl Pentapeptide-17, an amino acid peptide known for stimulating keratin production, resulting in visibly longer lashes in as little as 25 days.

Benefits

✓ Easy application - Apply in less than 5 seconds

✓ Real results - Our best-selling serum works fast to provide 85% longer and 80% fuller-looking lashes*

✓ Conscious recipe - Free from cruelty, parabens and oils; making it vegan-friendly and safe to use with lash extensions and contact lenses

✓ Clinically tested - Clinically proven results. Approved by dermatologists and ophthalmologists

✓ Money-back guarantee - In the unlikely event that you are unhappy with the results after 12 weeks of use, we will give your money back

*Based on a 4 weeks consumer study with 50 participants. Results will vary.

Size: 3ml / 0.10fl oz

Weeks 1–4: Nourishment Begins
The lashes begin to feel nourished and conditioned as the serum strengthens the lash roots, stimulating growth and making them less prone to breakage.

Weeks 4–6: Visible Changes
The lashes start to look longer, healthier and fuller whilst the serum continues to nourish and condition the lashes at the root.

Weeks 6–8: Noticeable Growth
The lashes appear longer and stronger, showing a clear improvement in both volume and length, while the serum continues to nourish and support the lashes entering the growth phase.

Weeks 8–12: Full Results
Full results are achieved with lashes that are healthier, thicker, longer looking, and nourished, as the serum worked to stimulate growth. To maintain these results, use 3–4 times per week.

Vegan friendly

Care for the planet

Clinically proven

To deliver real results

Dermatologist approved

Kind to your skin

Ophthalmologist approved

Kind to your eyes

Trichologist approved

Kind to your hair

1. Remove makeup with an oil-free remover or cleanser

2. Apply one stroke of the serum to your upper lash line with your eye closed, working from the inner corner outwards. One dip is sufficient for both eyes

3. For best results, apply in the PM and allow the serum to work overnight. If applying in the AM - make sure the serum has fully dried before following with your makeup routine

WARNINGS: PATCH TEST BEFORE USE BY APPLYING A SMALL AMOUNT OF SERUM TO CLEAN DRY, SKIN BEHIND YOUR EAR. WAIT 24 HOURS TO CHECK FOR SENSITIVITY. IF IRRITATION OR REDNESS OCCURS, STOP USE AND TRY AGAIN AFTER A FEW DAYS. DISCONTINUE USE IF IRRITATION/ ALLERGIC REACTION PERSISTS. IF THE SERUM GETS INTO YOUR EYES, RINSE WITH WATER. FOR EXTERNAL USE ONLY. KEEP OUT OF REACH OF CHILDREN. IF PREGNANT, NURSING, OR HAVE A MEDICAL CONDITION, CONSULT YOUR HEALTHCARE PROVIDER BEFORE USE.

Biotin Peptide

Plays a vital role in processing fatty acids and boosting their effectiveness, resulting in stronger and fuller lashes, brows and hair

Vitamin B5 (Panthenol)

Repairs, protects and nourishes the hair follicle to promote happy and healthy growth

Myristoyl Pentapeptide-17

Stimulates production of Keratin, a vital protein for growing long and healthy lashes & brows

Green Tea Extract

For soothing skin and helping lashes & brows grow

Prostaglandin Analogue

Low & safe level of the most potent and well-researched active ingredient for fast lash growth

Aqua, Glycerin, Butylene Glycol, Propanediol, 1,2-Hexanediol, Biotinoyl Tripeptide-1, Camellia Sinensis Leaf Extract, Caprylyl Glycol, Centella Asiatica Extract, Chamomilla Recutita Flower Extract, Ethylhexylglycerin, Glycyrrhiza Glabra Root Extract, Isopropyl Cloprostenate, Myristoyl Pentapeptide-17, Panthenol, Polygonum Cuspidatum Root Extract, Rosmarinus Officinalis Leaf Extract, Scutellaria Baicalensis Root Extract, Tocopherol, Xanthan Gum, Benzoic Acid, Phenoxyethanol, Sodium Benzoate.

This formulation contains a safe and low-dose prostaglandin analogue that helps to enhance the appearance of eyelashes.

We also offer our Complex Peptide Lash Serum and Sensitive Lash Serum that does not contain this active ingredient.

This product is eligible for our money back guarantee

Faqs

An eyelash serum is a specially formulated treatment designed to lengthen, thicken and nourish your natural eyelashes. Providing a kinder alternative to eyelash extensions, they typically contain a blend of ingredients to stimulate lash growth.

Eyelash Serums deliver active ingredients to the roots and lengths of the lashes to create the perfect environment for growth and to nourish and condition the lashes that are already there, prolonging the amount of time they stay attached and in turn creating the appearance of longer and fuller lashes. Head to our article ‘How Do Eyelash Serums Work’ to learn more.

Apply a small amount of the serum to a small area, such as the corner of your forehead, behind your ear, or the side of your neck. There should be no other products on the skin so that you can properly test this product.  Wait around 24 hours to see if you have skin sensitivity.

In short, eyelash serums are safe to use and are typically backed by rigorous testing and stringent quality control measures. As with all beauty products, different serums can affect people differently, which is why we always encourage patch-testing prior to using the product and ask that you consult your doctor before use if you suffer from any preexisting conditions.

This will depend on what point your lashes are in their cycle when you start to use the product. Some see longer lashes in as little as 25 days, but 12 weeks is when you should expect to see full results. Read more about lash cycles.

Trusted by Experts

“Using an eyelash serum can help to strengthen your natural lashes, keeping them long and strong and primed for growth ”

Dr. Raj Arora, GP & Medical Educator

“Long-term, aggressive plucking can weaken brow follicles. Go easy, try a UKBROW Eyebrow Serum to encourage growth”

Dr. Kemi Fabusiwa, GP & Medical Educator

“Use deep conditioner often and a shampoo with Piroctone Olamine to protect against dry scalp and hair loss.”

Kate Holden, Trichologist MIT

“Use the Hair Serum for post-sun smoothing, and the Lash Serum to keep lashes strong if you’re skipping mascara.”

Dr. Pyal, GP and Dermatologist

4.8
Rated 4.8 out of 5 stars
Based on 52,462 reviews
Reviews Summary
Customers say this lash serum makes their eyelashes longer, thicker, and fuller. Many report visible improvements within 2-6 weeks, though some note it takes up to 12 weeks for full results. Users appreciate that it's easy to apply nightly and integrates well into skincare routines. Common feedback includes receiving compliments on natural lashes and no longer needing false lashes or extensions. Several customers mention using it for years and being loyal to the product. Some note it helps restore lashes damaged by extensions or aging. A few users experienced eye irritation or saw no results despite consistent use.
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52,462 reviews
  • A F.
    Verified Buyer
    Reviewing
    Lash Growth Serum
    I recommend this product
    Age Range 25 - 34
    What was your concern? Damaged lashes (extensions/ lash lifts), Short lashes
    How long have you been using the product? 150 days (5 months) or more
    What improvements have you noticed? Longer lashes, Fuller lashes, Nourished and hydrated lashes
    Rated 5 out of 5 stars
    3 weeks ago
    Love this serum

    Definitely worked for me . No more fake lashes

  • Steph
    Verified Buyer
    Reviewing
    Lash Growth Serum
    I recommend this product
    Age Range 35 - 44
    What was your concern? Sparse lashes, Damaged lashes (extensions/ lash lifts), Short lashes, Brittle lashes, PCOS hair loss
    How long have you been using the product? 60 days (2 months)
    What improvements have you noticed? Fuller lashes, Longer lashes, Stronger lashes
    Rated 5 out of 5 stars
    3 weeks ago
    Just WOW

    I never leave reviews for anything, but after years of hammering my lashes with extensions I wanted to stop and go au naturelle, only problem being I had no lashes!! So I tried UK lash when I read the reviews, and now I cannot recommend this product enough. Within 6 weeks my lashes are long & strong. You won’t regret purchasing

  • Phoebe J.
    Verified Buyer
    Reviewing
    Lash Growth Serum Duo Pack
    I recommend this product
    Age Range 25 - 34
    What was your concern? Short lashes, Sparse lashes, Brittle lashes, Damaged lashes (extensions/ lash lifts)
    How long have you been using the product? 150 days (5 months) or more
    What improvements have you noticed? Longer lashes, Fuller lashes, Stronger lashes, More Volume, More Curl
    How long have you been using this bundle? 5 months +
    Rated 5 out of 5 stars
    1 month ago
    AMAZING

    I have used this continuously for about a year now. And I swear by this, I used to have lash extensions religiously every 3-4weeks however decided I wanted a change. I was recommended this by a friend however was sceptical at first, I then brought lash serum and have used it every night as part of my skincare routine. Results don’t lie

  • jessica b.
    Verified Buyer
    Reviewing
    Lash Growth Serum
    I recommend this product
    Age Range 35 - 44
    What was your concern? Damaged lashes (extensions/ lash lifts)
    How long have you been using the product? 60 days (2 months)
    What improvements have you noticed? Longer lashes, Fuller lashes
    Rated 4 out of 5 stars
    1 month ago
    Wonder serum

    Have used this serum for a while now,but used it twice a day for the last 6 weeks as clumps of my lashes cakes out when I used an eye lash curler

  • Darci
    Verified Buyer
    Reviewing
    Lash Growth Serum
    I recommend this product
    Age Range 18 - 24
    What was your concern? Sparse lashes
    How long have you been using the product? 150 days (5 months) or more
    What improvements have you noticed? Longer lashes, Fuller lashes, More Volume, Nourished and hydrated lashes
    Rated 5 out of 5 stars
    1 month ago
    Best serum on the market

    I’ve tried a few serums and I can say this is the best I’ve been using for a year now and these were the results after 6 months or so. If you have the genes for long eyelashes this serum will allow your lashes to last longer so therefore be longer and more of them. I use every evening before bed and use a silk pillowcase which helps too.

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