Kosas
GrowPotion Fluffy Lash + Brow Boosting Serum
- Overview
- Choosing your shade
- How to use
- Ingredients
- Sustainable Packaging
- About the brand
Highlights
Suitable for
Lashes and brows.
Why we stand behind it
Featuring a unique two-in-one applicator to maximize both your brows and lashes, this serum creates the perfect environment for hair to thrive with a clean, 97 percent naturally derived, hyaluronic acid-powered formula with vegan keratin and a trio of peptides. It is also ophthalmologist tested, safe for sensitive eyes, and prostaglandin-free. Use it consistently on a daily basis for 12 weeks to see best results.
Key ingredients
Peptide trio: Promotes the look of length and thickness.
Vegan keratin: Provides essential building blocks of healthy-looking, fortified hair.
Provitamin B5: Promotes smooth, shiny hair.
this product meets
The Credo Clean Standard™
Every product we offer meets our industry leading standards for safety and sustainability.
learn moreWhat is an undertone?
An undertone is the color beneath the surface of your skin, which never changes (even with a tan). There are three types of undertones:
Pink/Cool
I see red or pink undertones around the perimeter of my face and neck.
My skin burns easily, but barely tans.
My skin looks better in silver jewelry than gold.
Neutral
I see both pink and yellow undertones around the perimeter of my face and neck.
My skin sometimes burns and sometimes tans.
My skin looks good in both gold and silver jewelry.
Yellow/Warm
I see yellow or golden undertones around the perimeter of my face and neck.
My skin rarely burns, but tans easily.
My skin looks better in gold jewelry than silver.
Find your shade match
Take our 1 minute quiz and get matched to real people with your skin tone and type.
Usage
Apply nightly.
Use flatter side of applicator to coat entire brow area.
Angle the pointed tip to apply along top lash line.
Avoid applying near inner-eye corner or inside waterline.
Start with clean, dry face and wait one to two minutes for serum to dry.
Apply a thin layer to the roots of upper lash line.
Only use one dip of serum for each brow and lash (a little goes a long way).
Don’t apply makeup immediately after.
Don’t apply to bottom lashes (upper application takes care of your lower lashes).
Don’t skip days-that’ll just delay your visibly full, fluffy results.
Full ingredient list
Click or tap an ingredient to learn more
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Help us end beauty packaging waste
We co-founded the nonprofit Pact to demystify how to recycle your beauty packaging empties and divert waste from landfills.
How to recycle your empties
1. Disassemble and clean all components
2. Pick the right disposal bin
3. Drop off your empties at your nearest Pact bin
1 Product Recycled = 10 Credo Rewards Points
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Kosas
Clean Makeup for Skincare Freaks. Welcome to next-level clean beauty that’s about revealing, expressing, and feeling comfy in your skin. It’s good makeup (not no makeup) that’s quick, easy, can’t mess it up. And it’s clinically proven to actually make your skin better, even when it’s bare. So you can look like your favorite self every single day.
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