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  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
  • Complex Peptide Lash Growth Serum + Lengthening Mascara Set - UKLASH
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462 reviews

Complex Peptide Lash Growth Serum + Lengthening Mascara Set

For longer, stronger & lengthened lashes

Complex Peptide Lash Growth Serum + Lengthening Mascara Set

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What it does

This powerful pair combines our record-breaking Complex Peptide Eyelash Serum which lengthens and strengthens your lashes, with our Lengthening Mascara which provides a dramatic and defined lash look that highlights your lash growth success.

Why it's special

Our Complex Peptide Eyelash Serum is powered by a record-breaking six peptides, whilst our Lengthening Mascara is specifically designed to lengthen, lift and showcase your hard-earned lash growth.

Benefits

Easy application - Combine one swipe of both the serum and mascara for the ultimate lash-lengthening boost!

Backed by science - Formulated by Biologists and approved by Dermatologists, Trichologists and Ophthalmologists

Nourishing formulas - Both are packed with nourishing ingredients to help fortify and strengthen the lashes

Conscious recipe - Vegan-friendly and free from parabens and oils; making them safe to use with lash extensions and contact lenses

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

Complex Peptide Eyelash Serum - 3ml / 0.10fl oz

Lengthening Mascara - 7g / 0.25oz

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.

Prostaglandin free

Peptide based

Clinically proven

To deliver real results

Dermatologist approved

Kind to your skin

Trichologist approved

Kind to your hair

Ophthalmologist approved

Kind to your eyes

Vegan friendly

Care for the planet

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

Lengthening Mascara

1. Swipe the upper lashes from root to tip using the flexible silicone brush. For extra protection around the eye area, use our innovative lash guard to cover the eyelids

2. Apply additional coats of the buildable formula to separate and define the lashes, adding to the overall lengthening effect!

3. Apply to lower lashes if desired

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

Carnauba Wax

A natural conditioner that helps to lift, hold and add shine to lashes

Hydrolyzed Wheat Protein

Hydrates and strengthens the hair follicle reducing hair loss

Glycerin

Moisturises and conditions the hair cuticles, preventing lash loss and providing a long and lustrous look

Candelilla Wax

Offers a smooth application and a strong, lasting hold for lashes

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.

Lengthening Mascara

Aqua (Water), Glycerin, Propylene Glycol, Copernicia Cerifera Cera/Copernicia Cerifera (Carnauba) Wax, Euphorbia Cerifera Cera/Euphorbia Cerifera (Candelilla) Wax, Styrene/Acrylates Copolymer, Cera Microcristallina/Microcrystalline Wax, Synthetic Japan Wax, Polyvinyl Alcohol, Silica, Polyacrylic Acid, Lauric/Myristic/Palmitic/Stearic Glycerides, Polysorbate 80, Stearic Acid, Argilla/Magnesium Aluminum Silicate, Glyceryl Stearate, Xanthan Gum, Triethoxycaprylylsilane, Phenoxyethanol, Benzyl Alcohol, CI 77499 (Iron Oxides).

This product is not eligible for our money back guarantee

Tried and tested by you
FAQs

Most people start to see noticeable results with our Complex Peptide Lash Serum in around six to eight weeks of consistent daily use, with fuller-looking lashes continuing to develop up to 12 weeks. The serum works alongside your natural lash cycle, so it depends at what point in the cycle you began to apply the serum as to how quickly you'll see results. To learn more about the lash growth cycle, head to our article here.

Peptides help support stronger, healthier-looking skin, lashes and brows by reinforcing the proteins that give them structure and resilience. On skin, they help improve the appearance of firmness and smoothness, while on lashes and brows they condition, strengthen and support natural growth for fuller, more defined-looking results over time. To read more about what peptides are, head to our article here.

Mascara typically lasts up to six months once opened, as exposure to air and bacteria can affect the formula over time and dry out mascara. If unopened and stored correctly, most mascaras have a shelf life of up to two to three years, but for eye health and best results, we always recommend replacing it regularly.

No, the UKLASH Lengthening Mascara is water-resistant, not waterproof, and the difference comes down to wear and removal.
Water-resistant mascaras are designed to hold up against everyday moisture like light rain, humidity or sweat, while staying comfortable and easy to remove. Waterproof mascaras offer maximum staying power and are ideal for long days, workouts or special occasions when you want your lashes to stay put no matter what.

To remove mascara, start with a gentle eye makeup remover suited to your formula, oil-based for waterproof mascara, and Micellar Water for regular and water-resistant mascaras. Soak a cotton pad, press it onto closed lashes for a few seconds to break down the mascara, then gently sweep downward without rubbing to keep lashes healthy and comfortable.

4.5
Rated 4.5 out of 5 stars
Based on 462 reviews
Reviews Summary
Customers say this eyelash serum makes their lashes longer, thicker, and stronger over time. Many report noticeable improvements within weeks, with some achieving lashes so full they no longer need mascara. Users appreciate that it helps restore damaged lashes after extensions or aging. While most find it gentler than the original formula, some note it works more slowly. Common feedback includes improved lash condition and thickness, though a few customers experienced no results or mild irritation. Many prefer the original version for faster, more dramatic length gains.
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462 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
    6 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

    Was this helpful?
  • 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
    11 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

    Was this helpful?
  • 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
    1 year 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

    Was this helpful?
  • Julianne A.
    Verified Buyer
    Reviewing
    Complex Peptide Lash Growth Serum
    Age Range 55 - 64
    What was your concern? Short lashes
    How long have you been using the product? 150 days (5 months) or more
    Rated 3 out of 5 stars
    1 year ago
    Not working any more!

    I’ve used uk lash for years and have loved my spectacularly long lashes my pride and joy until it stopped working. I changed to the newer complex peptide to see if it would help and have been using it since it became available with a small improvement but my lashes are still struggling

    Was this helpful?
  • linda c.
    Verified Buyer
    Reviewing
    Complex Peptide Lash Growth Serum
    I recommend this product
    Age Range 55 - 64
    What was your concern? Short lashes, Sparse lashes, Lash loss from hormonal changes (incl postpartum)
    How long have you been using the product? 60 days (2 months)
    What improvements have you noticed? Longer lashes, Fuller lashes
    Rated 5 out of 5 stars
    1 year ago
    Super lash serum

    Seen a difference in the length and strength of my lashes

    Was this helpful?
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