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Plump + Juicy Lip Booster

Buttery Treatment

 (107)

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Full, cushiony, smooth like butter.
Clean, buttery treatment packed with rich, concentrated fatty acids + lip-boosting actives for your smoothest, fullest, most cushiony lips ever.

Benefits & Ingredients
Peptides

Visibly firms + smooths

Plump Oleoactif

Visibly strengthens + plumps

Hyaluronic Acid

Hydrates

Concentrated Fatty Acids

Soothes + softens

Pairs Well With

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Full-Size Lip Treatment + Mini Spray-On Serum

Powerhouse treatment softens, smoothes + hydrates

The ultimate lip care to instantly replenish lips and promote moisture retention while visibly reducing the look of lines and wrinkles. Soothes dry, flaky lips.

7x more lip-boosting actives*

Hyaluronic acid, peptides, and plumping botanicals help visibly strengthen, redensify, and contour–leaving lips in the best shape ever. The plumper, the better. 

*when compared to Kosas Wet Oil Lip Gloss

Super clean + comfy

Smooth, buttery texture with natural emollients that’s never sticky or waxy.

Kosas Clean

Vegan. Gluten-free. Cruelty-free. Free of petroleum derivatives and plumping irritants.

Check out our Kosas Clean page for the full list.

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4.5
Rated 4.5 stars
Based on 107 reviews
Total 5 star reviews: 80 Total 4 star reviews: 13 Total 3 star reviews: 7 Total 2 star reviews: 3 Total 1 star reviews: 4
87%would recommend this product
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107 reviews
  • P
    purechar
    Flag of United States
    6 months ago
    Rated 5 stars
    Kosas lip

    Hi Beaities! I am a Master Estheicuan. I've been on the industry for 20+ years. One of the things the things I love the most about what I do is I get the opportunity to help people look and feel thier best! This Lip plumper works amazing. I instantly noticed firmer and smoother lips after it's first use. After a few weeks I noticed fuller smoother lips. This treatment is enriched with fatty acids. Some of them are my favorite ingredients like castor oilshea butter and sunflower seed oils. This treatment can be used morning and night but works wonderfully alone at night as a treatment. If you are wanting to use it during the day it can be used under lipstick, however it's suggested to be blotted first. This will help lipsticks not to bleed. It will give you a plumped smooth and soft lip.

    **This review was created through an educational promotional event hosted between the brand and beauty experts.**

  • T
    tatjanabluchel
    Flag of United States
    6 months ago
    Rated 5 stars
    Soft, smooth, rich

    I am normally not a big fan of lip plumbing treatments, typically because the tingle and even sting sometimes to create the plumbing effect and since I have very sensitive skin, it almost feels like having a reaction. As a pro-makeup artist in the entertainment industry, I don't stock plumbing treatments in my pro kit either for that reason since I don't know if one of my clients has super sensitive skin and could have a reaction. That has all changed now! Kosas Plump & Juicy Lip Booster Buttery Lip Buttery Treatment is a game changer for me!!!It feels smooth, creamy and moisturizes the lips like the best chapstick. It has a wonderful shine to it, but isn't sticky. And it does really plumb up the lips without any tingling or stinging feelings. It will be my new go to in my kit because I can trust that it will not create any issues for even my most sensitive clients. Kosas is truly cruelty-free. They don't test finished products or ingredients on animals, and neither do their suppliers or any third-parties. They also don't sell their products where animal testing is required by law.

    **This review was created through an educational promotional event hosted between the brand and beauty experts.**

  • L
    littleziggycaps
    Flag of United States
    6 months ago
    Rated 5 stars
    Kosa plumper

    This is a great product. Full of nutritional fatty acids , HA , and collegen not only is this plumper successful is achieving a fuller and softer pout but it's also incredibly healing. The plumper itself is super thick and buttery. It smells amazing and tastes nothing like it smells. That's not a huge issue when we look at the results though. I myself suffer from a skin picking disorder related to my ocd. As a result my lips are often cracked , chapped and damaged. This thick and buttery lip treatment drastically healed my abused lips. They look so much healthier and feel amazing. The hyaluronic acid not only moisturizes but helps to heal and rejuvenate the skin cells. I'm so impressed with the results. I really never thought I would turn to a lip plumper for healing purposes but I would highly recommend it. It repaired my lips far beyond other balms and treatments. My favorite part? No stinging or tingle ! Feels like nothing other than putting on a luxurious lip treatment.

    **This review was created through an educational promotional event hosted between the brand and beauty experts.**

  • K
    ktmccloskey
    Flag of United States
    6 months ago
    Rated 5 stars
    plump and juicy

    I recieved this product complimentary from beautytap in exchange for an honest review. I will not let the way I recieved the product affect my thoughts or color my review at all.I have loved the brand Kosas for a LONG time now. I knew the owner back when she was making products in her garage! I'm pleased to say that the plump and juicy lip treatment didn't disappoint! I have chronically dry lips that are prone to flakiness so when something says it's "plumping", that usually is code word for "irritating". But this feels so soft and cushiony, easy and comfortable to wear. I haven't used it in the PM yet, just no no-makeup makeup days. I'm excited to try it once I use up the night time product I am currently using (strivectin). I definitely recommend, this is a beautiful addition to the line!

    **This review was created through an educational promotional event hosted between the brand and beauty experts.**

  • H
    hmpocketglam
    Flag of United States
    6 months ago
    Rated 5 stars
    Buttery and deeply moisturizing

    I was sent this Plump & Juicy Collagen Lip Booster Buttery Lip Treatment complimentary from Kosas and Beautytap in exchange for my expert review.This beautiful, balmy and buttery lip treatment has a thick balmy texture and comes in a squeeze-tube applicator. This rich and buttery lip treatment contains beneficial ingredients such as peptides, concentrated fatty acids and plumping botanicals to nourish, replenish and plump the lips. This nourishing lip treatment feels amazing, works well and glides easily onto my lips without feeling overly sticky. I love wearing it alone or using it as a lip prep when doing a full face.I absolutely adore the effects of this ultra buttery and plumping balm treatment. I would highly recommend this to others as well.

    **This review was created through an educational promotional event hosted between the brand and beauty experts.**

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