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 Hotliner first, then swipe on Weightless Lip Color and Wet Lip Oil Gloss for a long-lasting, super slick finish.
Hotliner Hyaluronic Acid Contouring Lip Liner
HotlinerHyaluronic Acid Contouring Lip Liner241 total customer reviews
BestProducts Editors Choice Awards (2023)
Allure Best of Beauty (2023)
Clean Beauty, Allure Readers' Choice Awards (2023)
Best Lip Gloss, Cosmopolitan Beauty Awards (2020)
Best Lip Gloss, NewBeauty Beauty Awards (2020)
Best Lip Oil, Better Homes & Garden Beauty Awards (2020)
Best Lip Color, Glamour Beauty Awards (2020)
ELLE Future of Beauty Awards - Lips (2019)
Very Good Light Lightning Beauty Awards (2019)
The Shades
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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Frequently Asked Questions
You've got questions, we've got answers
How does Wet Lip Oil act as skincare for my lips?
The clean, vegan formula is packed with Hyaluronic Acid, Peptides, Avocado Oil, Konjac Root, and Shea Butter—all at active levels—to deeply hydrate, visibly plump, and soften lips over time. It’s skincare in a gloss.
Is there a scent?
Yes—it has a subtle, fresh scent of orange and vanilla that makes application feel uplifting but never overpowering.
Will I see plumper lips?
Yes! In a clinical study, Wet Lip Oil showed visible lip plumping immediately after use and continued improvement with ongoing wear.
What’s the difference between Wet Stick and Wet Lip Oil?
Wet Lip Oil is a high-shine gloss that delivers deep hydration and a plump, glossy finish. Wet Stick is a sheer, balmy lip color with a soft touch of shine and a lighter feel. Both are treatment-meets-color formulas for hydrated, plump, juicy lips—just with different textures and finishes.
Is wet lip oil sticky or heavy?
Not at all! The texture is cushiony, smooth, and non-sticky, so it feels more like a treatment balm than a traditional gloss. Website FAQ
Is the mica ethically sourced?
Yes, Kosas uses ethically sourced mica that meets our clean and responsible ingredient standards. We’re committed to full transparency and responsible sourcing.
- Color
- Texture
- Hydration
- Longevity
- Application
- MPMonica P.Verified BuyerAge Range 55 - 64Recommend Yes -1000%3 days agoAge Range 55 - 64Recommend Yes -1000%ReviewingWet Lip Oil Gloss SlushyRated 5 out of 5 starsThe best lip gloss!
The best lip gloss, love the new colors!
- MMaribel6 days agoReviewingWet Lip Oil Gloss ExposedRated 5 out of 5 stars5 Stars
Love the shine and clear look in this. I pair it with the lip liner and I love the pop it gives.
- TTerri1 month agoReviewingWet Lip Oil Gloss FruitjuiceRated 5 out of 5 stars5 Stars
Absolutely love this lip oil gloss. I purchased one and received this one as a gift. Great color and the shine is beautiful. Will repurchase. I am new to Kosas but love the many products I’ve tried and now continue to use. Highly recommend. Im a Kosas fan!
- TTerri1 month agoReviewingWet Lip Oil Gloss UnzippedRated 5 out of 5 stars5 Stars
Absolutely love this lip oil gloss. Great color and the shine is beautiful. Doesn’t dry out lips. Will repurchase. I am new to Kosas but love the many products I’ve tried and now continue to use. Highly recommend
- DDyanVerified BuyerHair Color BrownSkin Tone LightSkin Type NormalRecommend Yes -1000%1 month agoHair Color BrownSkin Tone LightSkin Type NormalRecommend Yes -1000%ReviewingWet Lip Oil GlossRated 5 out of 5 starsLove!
This is a beautiful gloss that really does make my lips look plumper without any irritation! I purchased the color Cola with a bit of hesitation thinking it might be too brown, but next to my fair skin it’s a beautiful pinkish shade that really brightens up my whole face . I love it!
- SSSugdiancargo S.Verified BuyerAge Range 25 - 34Astrology Water — Cancer; Scorpio; PiscesHair Color BlackSkin Tone MediumSkin Type OilyRecommend Yes -1000%1 month agoAge Range 25 - 34Astrology Water — Cancer; Scorpio; PiscesHair Color BlackSkin Tone MediumSkin Type OilyRecommend Yes -1000%ReviewingWet Lip Oil Gloss ColaRated 5 out of 5 starsLoveeeed
“I never liked lip oils before, but this one is pure love! It’s not sticky, has such a beautiful shimmer — I’m absolutely in love with it! My favorite lip oil ever!” 💖
- KKrystn1 month agoReviewingWet Lip Oil Gloss GrapesicleRated 5 out of 5 stars5 Stars
My new favorite lip product! Perfect texture, love the color, feel and application. Obsessed!
- CGCodruta G.Verified BuyerAge Range 55 - 64Astrology Earth — Taurus; Virgo; CapricornHair Color BrownSkin Tone LightSkin Type NormalRecommend Yes -1000%2 months agoAge Range 55 - 64Astrology Earth — Taurus; Virgo; CapricornHair Color BrownSkin Tone LightSkin Type NormalRecommend Yes -1000%ReviewingWet Lip Oil Gloss UnzippedRated 5 out of 5 starsGreat lip oil!
A little color and very moisturizing!
- AHAngie H.Verified BuyerAge Range 45 - 54Astrology Earth — Taurus; Virgo; CapricornHair Color RedSkin Tone LightSkin Type NormalRecommend Yes -1000%2 months agoAge Range 45 - 54Astrology Earth — Taurus; Virgo; CapricornHair Color RedSkin Tone LightSkin Type NormalRecommend Yes -1000%ReviewingWet Lip Oil Gloss UnbuttonedRated 5 out of 5 starsLove love love the cola color and formula is moisturizing as always
Such a great color on me. I’m a pale redhead and this color really looked great. I ordered unbuttoned as well in the wet slick, lip pencil and gloss. It is gorgeous as well. The liner of course stayed the longest. Wet slick stayed good on top of liner. The gloss doesn’t stay long but it moisturizes.
- ADAllison D.Verified BuyerAge Range 45 - 54Astrology Air — Gemini; Libra; AquariusHair Color BrownSkin Tone LightSkin Type DryRecommend Yes -1000%2 months agoAge Range 45 - 54Astrology Air — Gemini; Libra; AquariusHair Color BrownSkin Tone LightSkin Type DryRecommend Yes -1000%ReviewingWet Lip Oil Gloss MalibuRated 5 out of 5 starsLip fantasy
Looks is pretty on my lips 👄
