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Juicy, Plumping Treatment
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100% Treatment. 100% Lip Gloss.
A lip treatment and gloss packed with hydrating active ingredients that visibly plump and protect, all while providing a juicy slick of color. Super comfy, never drying, tingle-free.
- Hyaluronic Acid
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Attracts water and locks in hydration
- Peptides
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Visibly plumps
- Evening Primrose Oil
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Helps protect against stressors
- Avocado Oil
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Cushions and moisturizes
- Konjac Root
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Creates a gel-like barrier between lips and the environment
- Shea Butter
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Soothes & softens
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Swipe it on and go.
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The contoured doe foot applicator hugs the shape of your lip so it’s super easy to apply. Use the tip for any detail/touch-up action.
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Hot tip: Apply LipFuel first, then swipe on Weightless Lip Color and Wet Lip Oil Gloss for a long-lasting, super slick finish.
- Increased lip plumpness +249%**
- Improved hydration +199%
- Improved smoothness +282%**
- Improved firmness +324%*
*based on bioinstrumentation 4 week study, daily use on 33 people
**based on an expert graded 4 week study, daily use on 33 people
Best Lip Gloss, Cosmopolitan Beauty Awards (2020)
Best Lip Gloss, NewBeauty Beauty Awards (2020)
Best Lip Color, Glamour Beauty Awards (2020)
ELLE Future of Beauty Awards - Lips (2019)
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Plump Pillowy Lips, Clinically Proven Results
Hyaluronic Acid, Peptides, Evening Primrose Oil and other botanicals work to hydrate, visibly plump, and protect the lips.
In a clinical study, Wet Lip Oil Gloss:
✔️ Increased lip plumpness +249%**
✔️ Improved hydration +199%*
✔️ Improved smoothness +282%**
✔️ Improved firmness +324%**
*based on bioinstrumentation 4 week study, daily use on 33 people
**based on an expert graded 4 week study, daily use on 33 people




Slide. Smack. Shine.
The non-sticky formula slides on smooth to give you a soft, comfy feel and slick, vinyl look. Sheer watercolor-y effect can be layered for more color payoff.
Drench Lips in Hydration
Nothing but nourishing, good-for-your-lips ingredients. The clean, vegan formula leaves lips super smooth and hydrated — never sticky or drying like some traditional glosses.




See It In Action
Wet's plumping power.
Kosas Clean
Vegan and cruelty-free. Formulated without: mineral oil, talc, silicones, parabens, sulfates, and phthalates.
Check out our Kosas Clean page for the full list.


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Love the colors and texture Malibu is my solo go-to, but I love them all as toppers.
Was this helpful? - CFCharla F.Verified BuyerAge Range 45 - 54Astrology Water — Cancer; Scorpio; PiscesHair Color BrownSkin Tone MediumSkin Type DryRecommend Yes -1000%1 month agoAge Range 45 - 54Astrology Water — Cancer; Scorpio; PiscesHair Color BrownSkin Tone MediumSkin Type DryRecommend Yes -1000%ReviewingWet Lip Oil GlossRated 5 out of 5 starsNice lip gloss
I really like the lip gloss! I ordered three colors and they were all great, not sticky. One of the tubes leaked so they are replacing in so yay for great customer service, but that was the only hitch!
Was this helpful? - JKJohnna K.Verified BuyerAge Range 55 - 64Astrology Water — Cancer; Scorpio; PiscesHair Color BrownSkin Tone FairSkin Type NormalRecommend Yes -1000%1 month agoAge Range 55 - 64Astrology Water — Cancer; Scorpio; PiscesHair Color BrownSkin Tone FairSkin Type NormalRecommend Yes -1000%ReviewingWet Lip Oil GlossRated 5 out of 5 starsMy new favorite!!
It’s a lip oil that feels fabulous on your lips and the colors are gorgeous. Highly recommend
Was this helpful? - KBKeira B.Verified ReviewerAge Range Under 18Astrology Fire — Aries; Leo; SagittariusHair Color BrownSkin Tone LightSkin Type CombinationRecommend Yes -1000%1 month agoAge Range Under 18Astrology Fire — Aries; Leo; SagittariusHair Color BrownSkin Tone LightSkin Type CombinationRecommend Yes -1000%ReviewingWet Lip Oil GlossRated 5 out of 5 starsTotally recommend!!
I loved the Wet Lip Oil Gloss because it is sooo hydrating. It feels really nice on the lips. It's not too thick or thin, so the perfect consistency. Also, every besides Jellyfish, it has really nice pigment, but also without overpowering your natural lip colour. This should be in your top 3 choices for lip oils.
Was this helpful? - NNicoVerified BuyerAge Range 25 - 34Astrology Water — Cancer; Scorpio; PiscesHair Color BrownSkin Tone LightSkin Type CombinationRecommend Yes -1000%2 months agoAge Range 25 - 34Astrology Water — Cancer; Scorpio; PiscesHair Color BrownSkin Tone LightSkin Type CombinationRecommend Yes -1000%ReviewingWet Lip Oil GlossRated 5 out of 5 starsBest formula worst bottle
My only complaint is I can’t get to the last of my lipgloss because of the square, can’t explain. Still on my third bottle.
Was this helpful?KCKosas Cosmetics2 months agoHi Nico! Glad you're loving our Wet Lip Oil. We'll share your packaging feedback with the team! 💗