3 Reasons to Try Lash Boost Lash Serum

The #1 Premium Lash Serum Brand in the US, 2024*

3 reasons to try Lash Boost

*Source: Euromonitor International Limited; custom research conducted June–Aug 2025, retail value RSP terms, all channels; Lash Serum including Lash Serum products sold as part of Sets and Kits.

01 Reason one

Visible results in weeks — not wishes.

In an 8-week U.S. clinical and consumer study, users saw fuller, longer, and darker-looking lashes by week eight. No filters, no falsies — just consistent nightly use and a little patience.

Noticeably fuller-looking lashes by week 8*
Longer and darker-looking lashes with continued use
Results you keep with continued use

*Based on an 8-week U.S. clinical and consumer study.

Lash Boost results — fuller-looking lashes by week 8

02 Reason two

It works while you sleep.

One swipe along your upper lash line at night — that's the whole routine. The conditioning serum goes to work as you rest, so there's nothing to layer, wait for, or wash off.

Apply once nightly to clean, dry lashes
Dries in seconds — no residue
Built for sensitive eyes

03 Reason three

One serum. No extensions, no upkeep.

Skip the lash bar, the glue, and the standing appointments. Extensions take 2–3 hours to apply and need fills every 2–3 weeks — Lash Boost is a single nightly swipe that fits the routine you already have and travels in one tube.

A proprietary conditioning blend
No adhesives, tints, or salon visits

Lash Boost serum — no extensions, no upkeep

Before · After

Real results · 8-week study

See the difference.

In an 8-week U.S. clinical and consumer study, nightly Lash Boost delivered the look of fuller, longer, and darker-looking lashes* — measured, photographed, and self-reported.

90%

saw fuller-looking lashes

85%

saw longer-looking lashes

8 wks

to visible results

63%

saw darker-looking lashes

*Based on an 8-week U.S. clinical and consumer study. Individual results vary. Photos for illustration.

Before · After

Real results · 8-week study

See the difference.

In an 8-week U.S. clinical and consumer study, nightly Lash Boost delivered the look of fuller, longer, and darker-looking lashes* — measured, photographed, and self-reported.

90%

saw fuller-looking lashes

85%

saw longer-looking lashes

8 wks

to visible results

63%

saw darker-looking lashes

*Based on an 8-week U.S. clinical and consumer study. Individual results vary. Photos for illustration.

The whole routine

Three steps. Ten seconds. Once a night.

Cleanse

Start with clean, dry skin and lashes. Remove all eye makeup.

Swipe once

Apply a single stroke of serum along the base of your upper lashes, like a liquid liner.

Sleep on it

That's it. Use nightly and let the conditioning blend do the work while you rest.

From the reviews

Loved by 12,000+ people

4.8 / 5

"I cancelled my lash lift appointment after two months. My lashes have never looked better."

Dana R.

Verified buyer · 14 weeks in

"Subtle at first, then one day people started asking what mascara I use. I don't wear any."

Priya M.

Verified buyer · 9 weeks in

"Sensitive eyes and contacts — zero irritation. The one product I actually re-order."

Megan T.

Verified buyer · subscriber

Girl math — and it checks out

One tube lasts about two months — so the math lands under $2 a night.

$116.25

one tube · ~~$155~~ with WELCOME25

nights of use

≈ $1.94

a night

*Based on nightly use of one 5 mL tube over ~60 nights, after a 25% WELCOME25 discount on the $155 price. Your mileage may vary.

The honest comparison

Lash Boost vs. extensions

Lash Boost Serum

Lash Extensions

Tap to switch sides — the smaller line shows the other option.

Comparison based on typical U.S. salon pricing and average wear. Individual experiences vary.

Lash Boost

Lash Conditioning Serum · 5 mL

$116.25 $155 25% off with WELCOME25

Ships free — orders $80+
60-day satisfaction promise

Lash Boost

$116.25 ~~$155~~ · 25% off

Added to bag — Lash Boost