Essential Eyelash Growth Serum
Essential Eyelash Growth Serum
Korean Innovation
C-Curl Lift Brush
A prostaglandin-free lash serum made for longer, fuller-looking lashes
Longer, thicker looking natural lashes
Fast, noticeable results in weeks
Simple once-daily application in seconds
Prostaglandin-free formula
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How to use it
How to use it
Apply a thin line to clean, dry skin along the upper lash line once daily. Allow it to dry completely before applying skincare, makeup, or contact lenses.
Use consistently and avoid applying directly into the eye or along the lower lash line.
Key ingredients
Key ingredients
A performance-focused, prostaglandin-free blend selected to support visibly longer, fuller-looking lashes while conditioning each strand.
Every ingredient has a clear purpose, and the complete formula is disclosed so you always know what you are applying near your eyes.
About Flashes
About Flashes
Flashes began with a frustration: too many lash serums promised everything while delivering results that were difficult to notice.
We wanted something more focused—a prostaglandin-free lash serum created around the result women actually care about most: lashes that look noticeably longer.
No vague beauty language. No pretending that “conditioned” and “dramatically different” mean the same thing.
Just performance-first lash care, made for a closer look.
A Difference You Can Actually See
★★★★★ Excellent 4.9/5 Rated
Your Lashes Should Look Longer. Not Just “Healthier.”
Many prostaglandin-free serums focus on conditioning, softness, and general lash health.
Those benefits matter—but they are not the main reason you started searching.
Flashes is created for women who want a visible difference: natural lashes that look noticeably longer, fuller, and more defined, without relying on prostaglandins.
Not All Are Built for the Same Result
Flashes is made for women who want a prostaglandin-free routine with one clear priority: noticeably longer-looking natural lashes.
| Flashes | Others | |
|---|---|---|
Prostaglandin-free |
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Length-first focus |
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Strengthens follicles |
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Simple daily use |
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Safe to use |
QUESTIONS, ANSWERED
Flashes Q&A
How much should I apply?
You only need 1 dip for both eyes. Wipe off any excess product from the wand before applying, then apply a thin line just above your upper lash line on clean, dry skin just like eyeliner. Wait 2-3 minutes for serum to dry before applying skincare, makeup, touching your eyes, or laying down.
How long does it take to see a difference?
Everyone’s a little different - some people start seeing progress as soon as 2 weeks in! We recommend taking before & after photos along the way and comparing your results after 12 weeks of consistent use.
Does Flashes contain prostaglandins?
No. Flashes lash serum is formulated without prostaglandin derivatives and is free of parabens for safe daily use. This hypoallergenic formula maintains a pH level similar to natural tears and has been clinically tested as non-irritating to eyes, ensuring maximum gentleness.
Is Flashes a lash-growth drug?
No. Flashes is a cosmetic eyelash-enhancing serum designed to improve the visible appearance of lash length, fullness, strength, and condition.
It is not a prescription treatment or drug.
How do I apply it?
The dual-brush applicator allows targeted application for different lash areas. Use the ball tip to apply serum precisely along the lash roots, then use the curved brush to coat lashes evenly for optimal conditioning.
Can I use it with mascara?
Yes. Apply Flashes to clean, dry skin first and allow it to dry completely before applying mascara or other eye makeup.
Always remove makeup gently at the end of the day to avoid unnecessary pulling or breakage.
Can I use it with lash extensions or a lash lift?
YES! Our lash treatments are oil-free and safe to use with extensions and strip lashes.
Is it suitable for sensitive eyes?
When you first start using the serum on sensitive skin, we recommend applying every other night for the first two weeks. This will allow your skin to acclimate to your new routine. Make sure to review the product instructions and our tips + tricks, as sensitivities can occur from using too much serum or applying improperly.
What happens if I stop using it?
Like most ongoing beauty routines, the visible benefits may gradually become less noticeable after discontinuation as lashes naturally complete their cycle.
Continued use is generally required to maintain the best cosmetic appearance.
What if I have more questions about the product?
If you have any additional questions or concerns, please don't hesitate to reach out to our customer support team via email at contact@tryflashes or through our contact page. We're here to help!
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August 2026Loren R.Verified BuyerGreat serum, it actually works!I’ve been using it morning and night and find it to be truly gentle. My eyes are very sensitive, yet I experienced absolutely no redness, burning, or itching. The serum has a lightweight, water-like texture that dries quickly; it doesn't interfere with my makeup application, nor does it feel sticky when I sleep.
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June 2025Maya R.Verified BuyerIt does workIt’s actually good, i purchased like 3 weeks ago and my lashes start to come up after daily use of it.
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July 2026Blair S.Verified BuyerHighly recommended!This product is phenomenal! You need to use it at night and in the morning for faster results. It's really like a lash laminator in a bottle. I feel as if it grew my lashes from 12mm to 14mm naturally and makes them seem more neat.
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July 2025Sadie K.Verified BuyerDoll-like eyelashesAfter using this product for three weeks, the results were amazing: there was absolutely no irritation or stinging on my eyelids, and it didn't feel heavy or suffocating at all. It felt incredibly gentle.
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July 2026Johan D.Verified BuyerGentle, eye-safe, and surprisingly effectiveI bought this eyelash serum for my girlfriend, and after seeing her results and hearing her rave about it, I felt it deserved a proper review. To be honest, she was very hesitant when I first mentioned getting it for her. Her past experiences with lash serums weren’t great; she has tried a few well-known, expensive brands, but most of them either irritated her eyes, caused redness, or simply didn't work. Anyone who has had extensions knows how fragile natural lashes can feel afterward, and hers were definitely looking short and thin. She started using this product in early January, and she noticed a difference in usability right away.
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July 2025Anne I.Verified BuyerMy lashes confirm this worksMy lashes have grown AND that I have new growth! I would definitely recommend this and recommend a consistent routine with it.
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June 2026Jess L.Verified BuyerThe serum is amazing!Ive been using this for close to a month and my lashes are becoming more full, growing new lashes and they are definitely getting longer! Im so beyond excited because I wanted to grow my lashes without spending a ton of money and this serum is absolutely amazing!
