Kosas
Plump & Juicy Lip Booster Buttery Treatment
- Overview
- Choosing your shade
- How to use
- Ingredients
- Sustainable Packaging
- About the brand
Highlights
Suitable for
All lips.
Why we stand behind it
This powerhouse formula softens and hydrates, soothing dry, flaky lips and visibly reducing the look of fine lines. It contains seven times more lip boosting actives—hyaluronic acid, peptides and plumping botanicals—for full, cushiony-looking lips without the sting. The smooth, buttery texture is never sticky or greasy.
Key ingredients
Concentrated fatty acids: Soothe, soften, and visibly repair dryness.
Plump oleactif: Visibly strengthens and plumps.
Peptides: Visibly firm and smooth.
this product meets
The Credo Clean Standard™
Every product we offer meets our industry leading standards for safety and sustainability.
learn moreThis product is
Cruelty Free
Vegan
Alcohol Free
Soy Free
Paraben Free
What 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 this buttery treatment for your smoothst, fullest, most cushiony lips - without the sting. If using before lip color, wait until Booster is fully absorbed.
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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