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  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
  • Complex Peptide Lash Growth Serum + Eyebrow Serum Set - UKLASH
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Complex Peptide Lash Growth Serum + Eyebrow Serum Set

For longer lashes & fuller brows

Complex Peptide Lash Growth Serum + Eyebrow Serum Set

What it does

A combination of the world's most sophisticated peptide-based Eyelash and Eyebrow Serums which work to provide longer, stronger and fuller-looking lashes and brows.

Why it's special

Their clinically proven formulas include more peptides than any other lash and brow serum on the market. Pea Peptides, Hexapeptide-8, and Copper Tripeptide-1 all help to stimulate growth from the root and promote collagen and elastin in the hair follicle, resulting in longer, stronger and fuller-looking lash and brow growth in the long term.

Benefits

World first
- The world's first eyelash and eyebrow serum to be powered by a record-breaking six peptides

Easy application - Apply in less than 5 seconds

Clinically tested - Approved by dermatologists, ophthalmologists and trichologists

Kind recipe - The vegan-friendly recipe is derived from 99% natural and 22% organic ingredients

3ml / 0.10fl oz (each)

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.

World first

Record-breaking 6 peptides

Prostaglandin free

Peptide based

Vegan friendly

Care for the planet

Ophthalmologist approved

Kind to your eyes

Trichologist approved

Kind to your hair

Dermatologist approved

Kind to your skin

Complex Peptide Eyelash Serum

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

2. Apply one stroke of the serum to your upper lash line with your eyes closed. 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

Top tips

- Avoid direct contact with the eyes

- Do not use if you are pregnant, nursing or under 18

- Keep out of reach of children

- Patch testing is recommended and if redness or irritation occurs, discontinue use

- If you have any preexisting conditions, consult your doctor before use

- For more information, please read the box insert

Complex Peptide Eyebrow Serum

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

2. Apply one stroke of the serum to your entire brow. One dip is sufficient for both brows

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

Compl-hex™ Peptide Blend

(Pea Peptides, Palmitoyl Tetrapeptide-7, Palmitoyl Oligopeptide, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Hexapeptide-8 and Copper Tripeptide-1) - Our unique anti-inflammatory blend of 6 peptides helps to support lash resilience and reduce breakage for the appearance of thicker, fuller lashes.

Hyaluronic Acid

A well-known source of hydration for hair, it also delivers key nutrients to the follicles and roots to promote healthy lash growth

Hydrolyzed Wheat Protein

Hydrates and strengthens the hair follicle reducing hair loss

Complex Peptide Eyelash Serum

Aqua, Citrus Limon (Lemon) Fruit Water, Propanediol, Pisum Sativum (Pea) Peptide, Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein, Butylene Glycol, Hyaluronic Acid, Curcuma Longa (Turmeric) Callus Conditioned Media, Caprylyl Glycol, Acetyl Hexapeptide-8, Pentylene Glycol, Phytic Acid, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Copper Tripeptide-1, 1,2-Hexanediol, Glycerin, Carbomer, Polysorbate 20, Palmitoyl Oligopeptide, Palmitoyl Tetrapeptide-7, Centella Asiatica Extract, Polygonum Cuspidatum Root Extract, Scutellaria Baicalensis Root Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Chamomilla Recutita (Matricaria) Flower Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Isochrysis Galbana Extract, Phenoxyethanol, Xanthan Gum, Ethylhexylglycerin.

Complex Peptide Eyebrow Serum

Aqua, Citrus Limon (Lemon) Fruit Water, Propanediol, Pisum Sativum (Pea) Peptide, Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein, Butylene Glycol, Hyaluronic Acid, Curcuma Longa (Turmeric) Callus Conditioned Media, Caprylyl Glycol, Acetyl Hexapeptide-8, Pentylene Glycol, Phytic Acid, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Copper Tripeptide-1, 1,2-Hexanediol, Glycerin, Carbomer, Polysorbate 20, Palmitoyl Oligopeptide, Palmitoyl Tetrapeptide-7, Centella Asiatica Extract, Polygonum Cuspidatum Root Extract, Scutellaria Baicalensis Root Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Chamomilla Recutita (Matricaria) Flower Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Isochrysis Galbana Extract, Phenoxyethanol, Xanthan Gum, Ethylhexylglycerin.

This product is eligible for our money back guarantee

Faqs

Our Complex Peptide Eyelash & Eyebrow Serums are the first of their kind - offering a record-breaking six peptides in its innovative formula. It’s best suited to those looking for longer, healthier and more nourished lashes and brows.

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

If you have already achieved longer and fuller lashes and brows using our original serums, switching to our innovative Complex Peptide formula can be good as it focuses heavily on nourishing and maintaining length, resulting in healthier and fuller-looking lashes and brows for the long term.

It is packed with 99% naturally derived and 22% organic ingredients including Pea Peptides, Hyaluronic Acid, Hydrolyzed Wheat Protein, Hexapeptide-8 (Acetyl Hexapeptide-8) and Copper Tripeptide-1 amongst many more - all of which combine to moisturise, strengthen and stimulate lash and brows growth from the root.

As leaders in the Eyelash Growth Serum category, we want to make sure we’re catering to all customers in helping achieve longer and fuller-looking lashes. Our original Eyelash Serum was our first innovation, our Sensitive Eyelash Serum caters to those who are looking for a gentler approach to growth, and our new Complex Peptide Eyelash Serum pushes the boundaries by being an industry-first, packed with more peptides than any other serum on the market.

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

4.5
Rated 4.5 out of 5 stars
Based on 566 reviews
Reviews Summary
Customers say this lash serum makes their lashes longer, thicker, and stronger over time. Many report noticeable improvements within 2-8 weeks of consistent nightly use. Users particularly appreciate that this peptide formula is gentler on sensitive eyes compared to other formulations, with fewer experiencing irritation or stinging. Several customers mention successfully restoring lashes damaged by extensions or treatments. The serum is described as easy to apply and long-lasting. However, some users report slower results compared to the original formula, and a few experienced no improvement after months of use. Most find it effective for both lash and brow growth.
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566 reviews
  • Davinia
    Reviewing
    Complex Peptide Lash Growth Serum
    I recommend this product
    Age Range 45 - 54
    What was your concern? Damaged lashes (extensions/ lash lifts)
    How long have you been using the product? 90 days (3 months)
    What improvements have you noticed? Longer lashes, Nourished and hydrated lashes, Stronger lashes
    Rated 5 out of 5 stars
    4 months ago
    Fixed my damaged lashes

    My lashes got damaged by a lash lift and this repaired and lengthened my lashes perfectly. I'm 47 years old and my lashes are the best they have ever been

  • Sylvie W.
    Verified Buyer
    Reviewing
    Complex Peptide Eyebrow Growth Serum
    I recommend this product
    Age Range 55 - 64
    What was your concern? Over plucked brows, Bald spots
    How long have you been using the product? 30 days (1 month)
    What improvements have you noticed? Fuller brows, Stronger brow hairs
    Rated 5 out of 5 stars
    4 months ago
    Amazing Eyebrow serum

    I never write reviews but l feel l have too .

    I am in my late 50’s and plucked my eyebrows for many years ( l am dark and they were bushy )

    But l think over the years l plucked too much .

    Had eyebrow Tattoo which faded also as they were short .

    I used the eyelash serum which had fantastic results so thought l would try the eyebrow serum .

    So glad l did as after l month new hair us growing and for the first time in years they are starting to resemble how they used to look many years ago.

    Believe me this stuff is truly amazing and about to order more .

    It does what it says on the tin and it works .

  • Stephanie O.
    Verified Buyer
    Reviewing
    Complex Peptide Lash Growth Serum + Eyebrow Serum Set
    I recommend this product
    Age Range 25 - 34
    What was your concern? Sparse lashes, Short lashes
    How long have you been using the product? 90 days (3 months)
    What improvements have you noticed? Longer lashes, Fuller lashes
    How long have you been using this bundle? 3 months +
    Rated 5 out of 5 stars
    5 months ago
    Amazing duo!

    Helped me with gaps in my brows and lashes. They both look so much fuller and thicker. Love that the serums are so easy to use too.

  • Gabrielle D.
    Verified Buyer
    Reviewing
    Complex Peptide Lash Growth Serum
    I recommend this product
    Age Range 25 - 34
    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, More Volume, Fuller lashes, Stronger lashes
    Rated 5 out of 5 stars
    9 months ago
    Love It!

    I feel like this is an upgrade from the OG UKLash serum, it doesn’t leave dark circles or dark lines on your eyelids so I’m obsessed. Works super well slightly thicker formula. 10/10

  • Patricia L.
    Verified Buyer
    Reviewing
    Complex Peptide Lash Growth Serum
    I recommend this product
    Age Range 45 - 54
    What was your concern? Short lashes, Sparse lashes
    How long have you been using the product? 60 days (2 months)
    What improvements have you noticed? Longer lashes, Fuller lashes, More Volume
    Rated 5 out of 5 stars
    11 months ago
    Amazing

    I hadn’t worn makeup in years as I had literally about 10 single lashes . Then after a few months of the serum , the cold yeast was massive for me and feel more confident and wanted to wear make bit more. I recommend to everyone I know

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