Eyelash Serum

£24 3ml - Lasts 3 months Regular price £48 Sale priceSave 50%
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90 day guarantee

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Cruelty free

Missing the lashes you used to have?

Lashes thin out over time. They fall out sooner, grow back shorter, and no amount of mascara fixes a sparse lash line.

Diablo Eyelash Serum works at the follicle, strengthening each lash and keeping it growing for longer. The result is a fuller lash line that's actually yours.

  • Formulated by ophthalmologists, safe for sensitive eyes
  • No prostaglandins, hormones or parabens
  • Start seeing changes in just 2 weeks
  • Strengthens damaged, sparse and brittle lashes
  • One swipe a night, takes seconds
  • Backed by our 90 Day Results Guarantee

One swipe along your lash line each night. That's it.

1. Cleanse your eyelids and remove all makeup, using an oil-free cleanser.

2.  Apply one thin line of Diablo Eyelash Serum along your upper lash line, like eyeliner.

3. Let it dry, and leave it to work overnight.

Use nightly for 90 days, which is roughly one full bottle. Most people notice a difference around 8 weeks. After 90 days, drop to 3 to 4 nights a week to maintain.

Made with 100% natural, vegan and cruelty-free ingredients. This serum contains a carefully selected formula clinically proven to promote longer and thicker eyelashes.

Purified Water (Aqua), Hyaluronic Acid, Biotinoyl Tripeptide-1, Myristoyl Pentapeptide-17, Vitamin B7 (Biotin), Vitamin B5 (Panthenol), Panax Ginseng Extract, Swertia Japonica Extract, Pentylene Glycol, Cucurbita Pepo (Pumpkin) Seed Extract, Acetyl Tetrapeptide-3, Serenoa Serrulata Fruit Extract (Saw Palmetto), Oligopeptide-10, Vitamin E (Tocopherol).

Use the whole bottle. If your lashes aren't fuller and longer, we'll refund you in full.

Lashes grow on a cycle, and that cycle takes months. Most people see a visible difference by 8 weeks, but your lashes aren't done changing until you've finished the bottle. So that's how long we ask you to give it.

Use the serum nightly for 90 days. If you're not happy with your results, email us within 120 days of delivery and we'll refund the full amount you paid.

No return. No photos. No forms.

Free delivery on all orders this week.

You can return your order for any reason within 60 days. See more

★★★★★

"The ONLY lash serum that has actually worked for me."

- Kira P.

Proven Results

94%

of users experienced increased eyelash length & thickness

Key Ingredients

Toxic free and sustainably made. The 100% natural formula is clinically proven to promote longer & thicker eyelashes.

Biotinoyl Tripeptide-1: The super combo, Tripeptide with Biotin, has an impressive impact on eyelash growth making them appear longer, fuller and stronger.

Myristoyl Pentapeptide-17: Penetrates the lashes to stimulate keratin, your hairs natural protein, which is required for healthy eyelash growth.

Oligopeptide-10: Helps support collagen production and improves follicle function, minimising eyelash loss while increasing eyelash thickness.

Builds a foundation for keratin and increases the rate of new follicles, preventing eyelash brittleness and speeding up new eyelash growth.

Responsible for increasing water content and elasticity. B5 prevents early eyelash breakage allowing the eyelash hairs to grow longer and thicker.

An essential vitamin for healthy eyelashes, Tocopherol contains antioxidant properties that protect the eyelashes from mascaras and strong makeup removers.

Purified Water (Aqua), Hyaluronic Acid, Biotinoyl Tripeptide-1, Myristoyl Pentapeptide-17, Vitamin B7 (Biotin), Vitamin B5 (Panthenol), Panax Ginseng Extract, Swertia Japonica Extract, Pentylene Glycol, Cucurbita Pepo (Pumpkin) Seed Extract, Acetyl Tetrapeptide-3, Serenoa Serrulata Fruit Extract (Saw Palmetto), Oligopeptide-10, Vitamin E (Tocopherol).

Free from:

Parabens, Sulphates, Hormones (Prostaglandin), Silicones, Gluten, Fragrance, PEGS, Phthalates, BHT.

Effortless Application

Just one swipe along your lash line each night is all it takes for longer fuller lashes.

1

Remove any makeup and residue with preferably an oil-free cleanser.

2

Apply one thin line of Diablo Eyelash Serum along your lash line.

3

Apply each night and start seeing results in 2 weeks.

Your Questions Answered

Yes, the serum is safe to use with sensitive eyes. It is free from Allergens, Parabens, Hormones (Prostaglandin), Sulphates, Silicones and Fragrances. However, to be safe we still recommend patch testing before use.

There are no side effects from using Diablo Eyelash serum and it is free from Allergens, Parabens, Hormones (Prostaglandin), Sulphates, Silicones and Fragrances.

You'll start to see changes in as little as 2 weeks. And you'll have visibly longer & thicker lashes after 8-12 weeks of using Diablo Eyelash Serum each night.

Yes, Diablo Eyelash Serum is cruelty-free, vegan friendly and does not contain any animal derived ingredients. None of our products have been tested on animals.

Use the serum nightly for 90 days, which is roughly one full bottle. If you're not happy with your results, email info@diablocosmetics.com with your order number within 120 days of delivery. We'll refund the full amount you paid for your serum or serum bundle.

Nothing to send back. No photos, no forms.

Yes, you’re able to wear makeup, mascara & falses lashes while using the serum. However please ensure your eyelids are clean and free of oil & makeup residue before applying Diablo Eyelash Serum each night.

Yes, our serum is oil-free, making it lash extension and lash lift friendly.

Yes, we’ve tried and tested the serum across all ages, genders, and ethnicities, ensuring everyone can experience longer, fuller, and healthier lashes.

Trusted by 314,937+ Happy Customers

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Emma R.
A MUST in my make up bag

I started using Diablo when I was losing all of my eyelashes from stress. I was skeptical as I never know if these actually work or not. My results within 4-6 weeks were insane!!!! I buy this every 4 months now and it is a MUST in my make up bag. Thank you 🫶🏻✨

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Rhonda G.
Growing beautifully

My eyelashes are growing beautifully

A
Amanda T.
Long and lovely

Absolutely 💯 love it my lashes are long and lovely 😍 👌 👍 🥰 thankyou im glad I took a chance

S
Shannon T.
My lashes are so long

Great product my lashes are so long. Easy applicator love that is once daily. No stinging or burning of the eyes

h
helen l.
Highly recommend this product

I saw an ad online and decided to try the Diablo eyelash serum. I’ve used revitalash and grandelash- both worked very well but my eyes were RED and irritated all the time. I didn’t put two and two together and thought red dry eyes were due to allergies, but when i started diablo the redness stops because it DOES NOT have prostaglandins!! Lashes really have grown, not as thick as with prostaglandins but really long! I also had great experience with their customer service- I HIGHLY RECOMMEND THIS PRODUCT!

M
Myrriah C.
Put on mascara and BAM

This is a really gentle serum and never caused my eyes or skin any discomfort. The tips of my eyelashes are blonde, so it’s sometimes hard to know if I’m WANTING to see results, but then I put on mascara and BAM. I’ve run the before and after photos by people and they see a difference. Important to add that my lashes aren’t shedding as much!

H
Helen M.
Can't believe how they've grown

I have tried a few serums since I started to lose my eyelashes in the last couple of years. None of them worked so I was a bit dubious of this one. But I have been using this serum for about 4-5 weeks daily at first and now every other day and I can’t believe how my eyelashes have grown. Really pleased and would definitely recommend. Before and after pics attached

V
Viktoriia S.
Literal magic in a bottle

Literal magic in a bottle!
I have tried so many eyelash serums over the years, but the Diablo Eyelash Serum is hands down the best. I’ve been using it every night along my root line, and my lashes have never looked this thick or long.
By week two, I could already see a major improvement in my lash density. Now, my natural lashes look so good I barely even need mascara. Consistency is definitely key, but the payoff is 100% worth it. Incredible product!

L
Lorraine O.
The growth was outstanding

I used this religiously for 8 weeks and the growth was outstanding. I’m 54 and thought long lashes were a thing of the past but the serum sure does work, it also is gentle and doesn’t cause any irritation

D
Daisy H.
Increased my self-esteem

It’s def helped me grow my tiny lashes, giving me some length I haven’t had since having my son. I can wear mascara and and it’s been so fun and has increased my self-esteem!

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Sara M.
Given me longer lashes

I'm a golden oldie, 73 yrs young. I have hair and eyelash loss. Diablo serum has given me longer lashes, approx 3-4mm long.

D
Diane M.
Much fuller than when I started

I have not been using it daily as I should. However I have noticed my eyelashes are much fuller than when I started. I am looking forward to seeing the results when I become more consistent

k
kirstin m.
Your product, by far, is the best!

I have tried several lash serums and your product, by far, is the best!

O
Orla C.
Obsessed with this stuff!

Only been using for just over 30 days and I am obsessed with this stuff!!
I am always so skeptical of products like this especially because there obviously no magic cure to make you grow your lashes hair and nails etc but ladies this is it! Well for lashes anyway lol. I can’t say my lashes have thickened just yet but I will continue use and add another review in another month. They are definitely definitely 100% longer just hope it thickens them too but I’m feeling extremely hopeful considering the results so far.
I do have mascara on in the picture to demonstrate the length and I should have took one with mascara to begin with but honestly didn’t even think.
I think the price is just fantastic considering just how good it is. Will definitely be part of my bedtime routine from here on out.
Ladies don’t walk RUN to buy this product you will not be disappointed 🖤

K
Kelli C.
Wasn't a big difference but still a difference

Before and after from left to right. It took me about two months to get through the tube. Wasn’t a big difference, but it was still a difference and I’m happy with it.

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Dimitra P.
Truly unbelievable results

Truly unbelievable results. Been using it for about 5/6 wks. I don’t use mascara everyday. But I put mascara on for a wedding and was blown away by my long and thick lashes.

I
Iryna S.
A little longer and thicker

I used the Diablo product for two months. My eyelashes became a little longer and thicker. I think that’s wonderful. I will continue using it to achieve even better results.

T
Terese P.
This serum works

This serum works. It adds length to your existing lashes and does not cause redness around your eyes.

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Uliana D.
Slowly but effective!

Love this serum. Slowly but effective!
That’s truly results.

S
Sara D.C.
Overall I'm happy with it

I have really enjoyed using this serum! It brushes on with a brush tip on the lash line and I coat the root of my lashes. It doesn't sting or irritate the eyes at all. I use the Diablo at home lash lift kit and I feel this has helped keep my results for longer. I haven't noticed too much growth but in terms of the overall health of my lashes I think it's done a great job at keeping the curl and strength (less fall out). Overall Im happy with it and continue to use it!

D
Debra J.L.
Lashes are fuller enough

It works! Not as well as Rodan and Fields eyelash serum, but better than Ordinary eyelash serum! My lashes are fuller enough that at 54 years old I am happy. I don’t need lashes that look like fake lashes anymore- this serum works and keeps my lashes full enough to where applying mascara is easy and looks natural and lovely!

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RACHEL H.
A great, hassle-free product

This is a great, hassle-free product that produces results with consistency. Easy to apply, I've never had any bad reactions to the formula. After a couple months my lashes are noticeable longer, thicker, and I have less fall out. Both photos are after months of consistent use. Highly recommended to all.