100% Money Back Growth Guarantee

Root 1 Lash Growth Serum Prostaglandin-Free Lash Growth Serum

Root 1 Lash Growth Serum

$58
$58
4.7
Rated 4.7 out of 5 stars
170 Reviews
Sale Ends In
00
Days
00
Hours
00
Minutes
00
Seconds
Root 1 Before & After Results Our Difference How to Use Ingredients Close-up In Use Video
Paula’s submitted before lash photo at week 0
Week 0
Paula’s submitted after lash photo at week 12
Week 12
See a 12-week lash journeyPaula’s photos, routine and story
Pack
No results after 12 weeks? Your money back.

Proud to Be...

  • Ophthalmologist Reviewed
  • Dermatologist Tested
  • Clinically Tested
  • Non-Irritating
  • Hypoallergenic
  • Made in USA
  • Vegan Friendly
  • Cruelty Free
  • No Prostaglandins

A lash growth treatment serum with a difference. 

Powered by RootBoost Technology: Clinically backed botanical, vitamin & peptide complex

Developed with Experts: Award-winning trichologists, dermatologists & Ophthalmologist tested

Root 1 delivers 4-in-1 results in 3-12 weeks:

  1. Encourages new lash growth
  2. Helps existing lashes grow
  3. Reduces brittleness by sealing in moisture
  4. Supports the lash cycle by extending the growth (anagen) phase

Most mainstream lash serums use prostaglandin analogues - hormone-like compounds originally found in glaucoma medication.

These can cause harmful side effects such as:

  • Eyelid darkening
  • Irritation and redness
  • Orbital fat loss (sunken eyes)
  • Iris color changes

They’re often hidden by brands under 15–20 confusing INCI names!

SOWN is 100% prostaglandin-free + hormone-free.
Safe for eyes, gentle on skin, and suitable for sensitive eyes + contact lens wearers.

 

Everyone. Those who want longer lashes. Or you might be looking to regrow them after extensions, chemo, stress, trichotillomania, post covid, post menopausal, post natal hairloss. Whatever the reason, we're here to get you longer natural lashes.

Using our engineered brush, apply directly to the lash line twice a day - on clean, dry skin. You will see huge changes in your lash length and volume in just 3-12 weeks (depending where you are your in growth cycle).

Formulated with: 

Root Botanicals:
Ginseng • Pumpkin • Mulberry Root • Licorice • Red Clover
Nourish roots, supports stronger, longer growth.

Multivitamins:
B3, B5, B6, B7 (Biotin), C & E
Support the appearance of thicker, fuller hairs.

Peptides:
Myristoyl Pentapeptide-17 • Acetyl Tetrapeptide-3 • Biotinoyl Tripeptide-1
Help improve the look of density, reduce visible shedding & support follicle strength.

Full ingredient list: Aqua (Water), Butylene Glycol, Pentylene Glycol, Glycerin, Ammonium Polyacryloyldimethyl Taurate, Hydroxyacetophenone, Niacinamide, Sodium Starch Octenylsuccinate, Calcium Pantothenate, Maltodextrin, Sodium Ascorbyl Phosphate, Biotin, Morus Alba Root Extract, PPG-26-Buteth-26, PEG- 40 Hydrogenated Castor Oil, Pyridoxine HCL, Tocopheryl Acetate, 1,2-Hexanediol, Caprylyl Glycol, Arctostaphylos Uva Ursi Leaf Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Panax Ginseng Root Extract, Scutellaria Baicalensis Root Extract, Lactobacillus/Pumpkin Fruit Ferment Filtrate, Sodium Metabisulfite, Benzoic Acid, Myristoyl Pentapeptide-17, Sodium Benzoate, Dextran, Silica, Gynostemma Pentaphyllum Extract, Apigenin, Glycine, Larix Europaea Wood Extract, Oleanolic Acid, Acetyl Tetrapeptide-3, Trifolium Pratense (Clover) Flower Extract, Biotinoyl Tripeptide-1, Phenoxyethanol*, Leuconostoc/Radish Root Ferment Filtrate, Camellia Sinensis (Tea) Extract, Zinc Chloride.

*There is a trace amount present (0.0005%) as part of one of our proprietary technology components, which is far below the 1% safety threshold and does not function as a preservative. It doesn’t impact irritation potential, and the formula remains hypoallergenic and suitable for sensitive eyes. (for more context phenoxyethanol functions as a preservative at ~0.5–1.0% so it is 1,000–2,000× lower than functional preservative levels in SOWN and far below what would have antimicrobial activity in a cosmetic.

  • Hormones
  • Harsh irritants
  • Hidden medicated ingredients
  • Silicone
  • Fragrances & dyes
  • Mineral Oils
  • Phenoxyethanol
  • Petrochemicals
  • GMOs
  • Formaldehyde donors
  • Sulfates & Phthalates
  • Soy
  • Prostaglandins / prostaglandin analogues (and all the INCI names for prostaglandin analogues which many other brands formulate with i.e Isopropyl Cloprostenate/ Dechloro Dihydroxy Difluoro Ethylcloprostenolamide/Trifluoromethyl Dechloro Ethylprostenolamide, Bimatoprost, Latanoprost, Travoprost, Unoprostone Isopropyl Ester, Cloprostenol Isopropyl Ester, Isopropanol Phenylhydroxy-pentyl-methyl-octahydrocyclopent[b]indene-heptanoate, Prostaglandin E2 analogues, PGF2α analogues)
View full details

See the results.
Read the journey.

Paula’s submitted before lash photo at week 0
Week 0
Paula’s submitted after lash photo at week 12
Week 12

Paula’s story with Root 1

There’s more to a lash journey than the before and after. Follow Paula’s selected checkpoints through week 12.

Read the full case study
Before
After 12 weeks
Before
After 8 weeks
Before
After 12 Weeks
Before
After 7 weeks
Before
After 3 weeks
Before
After 12 weeks
Before
After 12 weeks
Before
After 12 Weeks
Before
After 4 weeks

Hanna

This lash serum has literally changed my life!!! I know that sounds silly but I had such short lashes before and now they are so filled out and so much longer.

  • Fuller lashes
  • Longer lashes
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

Jaden Familio

It works!!! After using SOWN I have been getting so many questions on my eyelashes recently and someone even asked me if i was wearing extensions! i didn't start seeing results for 8 weeks or so but it's so worth it and now it's part of my routine

  • Visibly Longer
  • Thicker
  • Fuller
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

Imaitsoanala

Just amazing! I have always been so skeptical of lash serums but i did soooo much research before buying one and SOWN seemed to get amazing results but also seemed the safest to use on the eye area. I am so glad i tried this, it's become part of my daily routine!

  • Longer Lashes
  • Fuller Lashes
  • Grew New Hairs as well as Existing Ones
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

Eliza Spring

I've tried most lash serums on the market... but Sown is the best lash serum out there. I mean JUST LOOK AT THEM! It's not only grown my actual lashes but suddenly loads of lashes appeared so the volume has been insane.

  • Visibly Longer
  • Fast Growing
  • New Growth
  • Zero Irritation
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

Sophie Espinosaa

I had lash extensions and i took them off and looked like a naked mole rat so I stalked a bunch of lash serums trying to find a good lash serum and most importantly wanted one without prostaglandins. I am SOOO happy with the growth in 3 weeks!

  • Quick growth
  • Longer lashes
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

GP Becki Davis

I've tried about 20 lash serums but this by far has been the best. The growth has been amazing!! I've got mascara on the after pic but still the photos speak for themselves!

  • Visibly longer
  • Quick Growth
  • Zero Irritation
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

Keet W

I ditched extensions after years of damage. SOWN’s lash serum made my natural lashes so much healthier and SO much longer within weeks I don’t miss extensions at all. Now my lashes touch my eyebrows!!

  • Visibly Longer
  • Zero Irritation
  • Thicker
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

Cerri Burrows

My optician recommended Sown as a safe way to grow longer lashes and i'm SO pleased I took her advice. Trust the process, it really works. I didn't think they had grown that much then suddenly people were telling me how long my lashes looked so I knew it was working!

  • Visibly Longer
  • Quick Growth
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

Katharina Martyn

4 weeks in but I can already notice longer lashes and overall more volume. So happy and can't wait to see results at 12 weeks.

  • Visibly Longer
  • Zero Irritation
Product Used: Root 1 Lash Growth Serum // Prostaglandin-Free Lash Growth Serum

How to Use

Application Time

3 seconds, 1 swipe, morning and night.

How to Make it a Habit

Keep it by your toothbrush to make it a root-ine!

01.

Apply 1 stroke stroke to your upper lash line at the lash root as you would a liquid eyeliner. Use just 1 dip into the bottle for both upper lash lines

02.

Apply product to clean, dry skin and allow the serum to dry a few minutes before applying additional products.

SOWN prostaglandin-free lash growth serum included in bundle

03.

Apply consistently twice a day until you finish your first full-size bottle (about 12 weeks), then every other day for maintenance. Our serum is so safe on eyes, you can consistently use it (unlike prostaglandin ones).

04.

Don’t apply to the actual lashes themselves, the lower lashline, or the inner tear duct area (as this could increase chances of getting the formula into the eye and does not deliver the formula to the lash root where it is most effective).

How It Works

Good to Know: Hair Growth Cycle

Healthy hair go through a constant natural cycle of growth (anagen phase), transition (catagen phase), resting (where new hairs start forming beneath the surface, also known as the telogen phase) and release (exogen phase, where old hairs shed to make way for new hairs.) Sown extends the growth (anagen) phase but where your individual hairs are in this cycle will determine how soon you see results. This is why some people might start seeing results in week 2, whereas others don't until week 8!

The Timeline

Learn More About Hair growth Cycles

Weeks 1-2

Lashes grow in natural cycles,meaning not every follicle is active at the same time. Some lashes are already growing, while others are resting or shedding. Because of this, early changes can vary from person to person. Depending on where your lashes are in their cycle when you begin, some people may notice small new hairs appearing within the first couple of weeks, while others may simply see their existing lashes looking healthier and stronger. Consistency at this stage helps support follicles as they re-enter the active growth phase.

Week 2-4

By weeks 2-4, more follicles begin entering the active growth phase (anagen). As this happens, new lashes start to emerge along the lash line. You may begin to see shorter, finer hairs filling in areas that previously looked sparse. This stage is when early density improvements often become noticeable. Where you see the most growth depends largely on where your lashes were in their cycle when you started using the serum.

Weeks 4-8

As more follicles move into the active growth phase, new hairs continue to emerge while earlier regrowth becomes longer and fuller. By weeks 4-8 and beyond, lashes typically appear fuller, more even, and more defined across the lash line to look more 'fanned out'. Continued consistency allows more follicles to synchronise into the growth phase over time, helping density and length gradually build. To maintain this length and fullness, ongoing use is recommended. Because lashes naturally shed and regrow in cycles, stopping use means new lashes will eventually return to their natural baseline length over time. Unlike many lash serums that are formulated for short-term use, SOWN is designed to be gentle enough for twice-daily, long-term use - making it easy to incorporate into your everyday routine.

Weeks 1-2

Lashes grow in natural cycles,meaning not every follicle is active at the same time. Some lashes are already growing, while others are resting or shedding. Because of this, early changes can vary from person to person. Depending on where your lashes are in their cycle when you begin, some people may notice small new hairs appearing within the first couple of weeks, while others may simply see their existing lashes looking healthier and stronger. Consistency at this stage helps support follicles as they re-enter the active growth phase.

Week 2-4

By weeks 2-4, more follicles begin entering the active growth phase (anagen). As this happens, new lashes start to emerge along the lash line. You may begin to see shorter, finer hairs filling in areas that previously looked sparse. This stage is when early density improvements often become noticeable. Where you see the most growth depends largely on where your lashes were in their cycle when you started using the serum.

Weeks 4-8

As more follicles move into the active growth phase, new hairs continue to emerge while earlier regrowth becomes longer and fuller. By weeks 4-8 and beyond, lashes typically appear fuller, more even, and more defined across the lash line to look more 'fanned out'. Continued consistency allows more follicles to synchronise into the growth phase over time, helping density and length gradually build. To maintain this length and fullness, ongoing use is recommended. Because lashes naturally shed and regrow in cycles, stopping use means new lashes will eventually return to their natural baseline length over time. Unlike many lash serums that are formulated for short-term use, SOWN is designed to be gentle enough for twice-daily, long-term use - making it easy to incorporate into your everyday routine.

1 Week
4 Weeks
8 Weeks
Learn More About Hair growth Cycles

What our derm says

This is one of the cleanest lash serums on the market, which actually works.

Trichologist PHD Dr Anna

Good Chemistry

Our innovative formulas are developed with our team of award-winning trichologists and chemists to bring you clean, safe formulas. Our products are made in the US and dreamed up by our in-house product innovation team. Driven by the latest in technologies, each product is stacked with actives at intentional percentages for optimal efficacy.

What makes us different

SOWN
Most Competitors
No Hormones or Prostaglandins
Yes
No
Safe for Daily Use
Yes
No
Growth Guarantee
Yes
No
Free from 800+ harmful ingredients
Yes
No
Oil Free so safe to use with extensions
Yes
No
No Hormones or Prostaglandins Safe for Daily Use Growth Guarantee Free from 800+ harmful ingredients Oil Free so safe to use with extensions
SOWN
Yes
Yes
Yes
Yes
Yes
Most Competitors
No
No
No
No
No
SOWN prostaglandin-free lash growth serum included in bundle

Regenerating RootBoost™ ingredients

Our RootBoost™ serums contain a powerful blend of botanicals including Ginseng, White Mulberry, Licorice, Red Clover and Pumpkin supercharged with vitamins B3, B5, B6, B7 (Biotin) C and E to promote healthier, stronger hair growth. A trio of peptides (amino acids) help seal in moisture to prevent shedding and brittleness. Most serums rely on synthetic shortcuts. We harness root botanicals, proven for centuries, and supercharge them with peptides and vitamins for visible, lasting growth.

No prostaglandins. No hormones. Just the proven power of roots.

Results Driven

Reviews are great. Results are better.

93% noticed longer, fuller-looking looking lashes*

*Based on 32 participants over a 12 week period.

0% experienced sensitivity

*Based on 32 participants over a 12 week period.

96% noticed thicker looking lashes*

*Based on 32 participants over a 12 week period.

95% noticed improvements in the appearance of lashes*

*Based on 32 participants over a 12 week period.

Powered by Science, Balanced by Botanicals.

We use innovative clinically proven ingredients (that are responsibly sourced) blended with balancing botanicals for non-irritating, fast-acting formulas that aid hair growth.

  • Our boxes are 100% recyclable. The surface isn’t shiny or smooth because we don’t laminate them, meaning they can be easily recycled.
    They're also printed on FSC (Forest Stewardship Council) certified paper, meaning the forests that provide the wood for our paper are responsibly managed.

  • We believe in a circular economy, so all our serum tubes are made from 30% post consumer recycled plastic (RPET), made from fully recyclable PETG which means disposing in kerbside recycling is easy. Also the small slender shape means we ship easily & efficiently, minimizing our carbon footprint.

    We print directly onto all tubes and boxes to avoid sticky plastic labels.

More On Our Sustainability

Got Questions on Root 1? We've got Answers

Absolutely! Unlike a lot of competitors, SOWN is completely safe to use with additional beauty treatments such as lash lifts, extensions, tints and waxing. SOWN is oil free so safe to use with extensions. SOWN provides the perfect base to help your natural lashes stay strong during these treatments and so can enhance the length of time the treatments last on the lashes or brows. Also glue from extensions can take its toll on natural lashes, causing breakage and significant lash loss. Using SOWN to complement your lash extensions, strengthens your natural lashes so you can enjoy your extensions longer. You can even transition to natural lashes if you want to as SOWN is just that powerful!

No, SOWN serums are 100% free from prostaglandin analogues and hormones. We believe in safe, effective growth powered by nature and backed by science. Many lash serums on the market use prostaglandin derivatives (often found in glaucoma medications), which can cause side effects like eye irritation, redness, or even changes in iris color. Our formulas are hormone-free and rely instead on a potent blend of root botanicals, peptides, amino acids, and vitamins to nourish and support natural hair growth -without compromising your health or safety.

Yes, our serums are ophthalmologist and dermatologist reviewed, making them suitable for individuals with sensitive skin or eyes. They are also hypoallergenic, fragrance free and have no irritants in so are formulated without harsh irritants, hidden medicated ingredients, silicones, dyes , mineral oils, phenoxyethanol, petrochemicals, GMOs, formaldehyde donors, sulfates, phthalates and soy.

Just like no two plants sprout at the same speed, your hairs will grow on their own cycle. Some customers see results in 3 weeks, others closer to 12 — but follow our instructions carefully and growth will come. Consistency = your secret weapon.

SOWN Root 1 is a safer choice for sensitive eyes than many lash serums because it's 100% prostaglandin-free, made and tested by leading dermatologists and is ophthalmologist reviewed.

A prostaglandin-free formula matters here: it avoids the irritation, redness, and darkening that some users experience with prostaglandin-based serums. SOWN Root 1 is hypoallergenic and fragrance-free, so it's suitable for even the most sensitive eyes as well as contact lens wearers.

Unlike some lash serums that rely on prostaglandin analogues, SOWN uses root botanicals, peptides, and multivitamins - the same class of gentler, non-hormonal ingredients found in other formulas, but without the sensitizing preservatives.

Yes all our products are 100% vegan and cruelty free.

On The Blog

T(hair)apy just for you

The Community

Join our active facebook group @sownbeauty or your money off your next purchase, free products and join other members starting their hair growth journey at the same time as you!

Join the Community
4.7
Rated 4.7 out of 5 stars
Based on 170 reviews
95%would recommend this product
Slide 1 selected
Write a Review (Opens in a new tab)
170 reviews
  • AA Profile picture for Ashley A.
    Ashley A.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    Yesterday
    Amazing product but the applicator could use some work...

    I absolutely love this product and how well it's working! I'm impressed that the ingredients are all natural. The only complaint I have is that the brush part of the applicator gets frayed and smushed often when I'm putting it back into the tube. I don't know if this is just me, but I have to use my fingers to twist the fibers back together so it doesn't completely ruin the applicator :(

    Was this helpful?
    SOWN
    Yesterday

    Hi Ashley! Thanks for your review and sorry to hear about the brush - this shouldn't be happening so I will get our CS team to reach out to you asap to send you a replacement! Thanks, SOWN

  • SW
    Suzanne W.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    1 week ago
    Pleased

    It takes time, but after about 5-6 weeks I noticed fuller, stronger lashes. It isn't dramatic, but I think because it's healthy and chemical free, the product is worth it using, and just about as good as you can get without risking your lash health with chemicals. I highly recommend to anyone whose eyelashes are recovering from chemical processes. It helped mine so much after a lash lift left me with frail, sparse lashes. I will add that I used the product consistently for the first 2 months, and had a two week trip where I wasn't using as much, so I think it may be one of those types of treatments where consistency truly matters long term.

    Was this helpful?
  • E
    Emma
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    7 weeks in

    Wish i'd taken a before photo now but i have been seriously so impressed with this serum so far!

    Was this helpful?
  • S
    Salma
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    CONVERT

    I have been a babe original or grandelash girlie for so long but i stopped seeing growth with them and got scared about the side effects. Started using sown a couple of months ago cos I saw the reviews on tiktok and i am such a convert now. Feels a relief to find one which works but doesn't do any eye or skin damage! love itttt

    Was this helpful?
  • AW
    Ashley W.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    1 month ago
    Making a Difference

    It’s not a miracle worker but there is a difference! Photos taken 7 weeks apart.

    Was this helpful?
Show More