COSRX

COSRX AHA BHA Vitamin C Lip Plumper.

Lip

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About this product

A lip plumper from COSRX formulated with AHA, BHA, and vitamin C to enhance lip fullness and texture.

Full ingredients

Petrolatum, Hydrogenated Polyisobutene, Polyisobutene, Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate, Butyrospermum Parkii (Shea) Butter, Diisostearyl Malate, Ethylene/Propylene/Styrene Copolymer, Sorbitan Sesquioleate, Microcrystalline Wax, Vanillyl Butyl Ether, Butylene/Ethylene/Styrene Copolymer, Ethylhexylglycerin, Water, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Butylene Glycol, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Coccinia Indica Fruit Extract, Amber Powder, Mentha Piperita (Peppermint) Leaf Extract, Solanum Melongena (Eggplant) Fruit Extract, Ocimum Sanctum Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Moringa Oleifera Seed Oil, Magnesium Ascorbyl Phosphate, Citric Acid, Betaine Salicylate, Anemarrhena Asphodeloides Root Extract

Guru Score

84%

Yay

Early verdict · Few reviews so far

2Gurus

2Yay

0Mixed

0Nay

What they liked

Gentle tingle, no stinging
Subtle plumping without bright redness

What they flagged

Nothing. None of the experts who reviewed it raised a problem.

What the gurus are saying

This lip plumper stands out for being gentle enough not to sting, a real relief for anyone who has had a painful lip treatment before. The gurus who have tried it praise it as a rare lip plumper they actually enjoy using, making it a solid pick if you are looking to plump without the burn.

Synthesized from 2 expert reviews · most recent take September 2025

Type

LipLiquid

Key actives

Vitamin C Salicylic acid (BHA)

Formula notes

Fragrance-freeNo drying alcohol

Where to buy

Ulta → Amazon → Google → iHerb →

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What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

Robert Welsh

1.11M subs

✓Yay

"This is the lip plump from COSRX. AHA BHA Vitamin C Lip Plumper. [...] I love this because it doesn't sting my lips. Like, it doesn't hurt. I am a wimp when it comes to lip plumping products that sting, [...] but this one, to me, doesn't sting. [...] There's a very slight tingle. But it's not like [...] that lip venom one. It's nothing like that. It's very, very copable and manageable. You'll see my lips don't even get bright red."

All 3 takes from Robert Welsh

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"I always start with the COSRX lip plumper. This is, like, for me, priming my lips. And as I always say, it's not like a heavy, stingy lip primer. It just gives a nice, even smoothness to the lip without the pain or anything like that."

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"This lip plumper is stunning. It's a tiny bit spicy, but not stingy. It doesn't sting. [...] It does have a tingle, but it truly smooths out your lips and it doesn't make them red. A lot of you may know I hate red lips on me. I hate the redness in my lips. [...] It doesn't make your lips bright red. You don't get this weird red hoop around your lips. [...] I can feel like a tiny tingle now, but it's not like, oh my God, this is crazy. [...] It's manageable."

Hyram

4.34M subs

✓Yay

"For a lip product, I haven't used this one in a while but it's the CosRx lip plump. If you guys follow me on Flip, I did a whole review on this one. Probably like the only lip plumper I like."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Vitamin C

Topical vitamin C is an antioxidant with reasonable evidence for dullness and uneven tone. It breaks down in light and air, so how a product is formulated and packaged matters as much as the percentage on the front.

Source: DermNet

Salicylic acid

Salicylic acid dissolves in oil, so it can get into a pore rather than just working on the surface. That is why it has long-standing evidence for blackheads and milder acne.

Source: DermNet

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Frequently asked.

What is COSRX AHA BHA Vitamin C Lip Plumper?

A lip plumper from COSRX formulated with AHA, BHA, and vitamin C to enhance lip fullness and texture.

Is COSRX AHA BHA Vitamin C Lip Plumper worth it?

Yes. All 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 84%.

What is COSRX AHA BHA Vitamin C Lip Plumper's Guru Score?

COSRX AHA BHA Vitamin C Lip Plumper holds a Guru Score of 84%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.