Lash Slick

"For people who want compliments on their lashes, not their mascara."
Our take

$20 Price at Glossier, checked Oct 2026.

The short answer

Lash Slick is a lengthening, lifting mascara with tiny fibers that coat each lash for a natural, baby-extensions effect. It's worth it if you want defined, longer-looking lashes without clumps or drama. Go elsewhere for big, dramatic volume.

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Picked, never paid for

What it is

Lash Slick is Glossier's best-selling mascara, designed to visibly lengthen and lift lashes. One and two millimeter fibers cling to each lash, and the water-resistant formula wears for up to 12 hours without smudging or flaking, per Glossier's testing on the Black shade.

Key ingredients: provitamin B5, biotinyl tripeptide-1 and vegan biotin
Japanese fiber technology for added length
Tapered comb brush
Available in Black and Brown, 8.5 g
Formulated without fragrance, suitable for sensitive eyes and contact lens wearers

How to use

Comb the wand through lashes from roots to tips. Build another layer for more impact, and don't skip bottom lashes.

Our Take

Why it made the edit.

Why we love it: It looks like your lashes, just better, which is exactly what most of us want on a weekday. It's water-resistant but comes off with warm water and no harsh rubbing.
Skip it if: You want thick, dramatic volume or a fully waterproof formula.
The catch: It's water-resistant, not waterproof, so it's not built for crying at weddings or a pool day. Volume lovers may find it too subtle.

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