COSRX

Ultra Light Invisible Sunscreen.

Sunscreen

About this product

An SPF 50 lightweight chemical sunscreen that provides UV protection with an invisible-setting finish.

Full ingredients

Diethylhexyl Succinate, Propanediol, Aqua/Water, Drometrizole Trisiloxane, Ethylhexyl Triazone, Niacinamide, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Terephthalylidene Dicamphor Sulfonic Acid, 1,2-Hexanediol, Behenyl Alcohol, Methyl Trimethicone, Sodium Polyacryloyldimethyl Taurate, Hamamelis Virginiana (Witch Hazel) Leaf Water, Tromethamine, Polyacrylate Crosspolymer-6, Arachidyl Alcohol, Caprylyl Glycol, Ethylhexylglycerin, Arachidyl Glucoside, Sodium Metaphosphate, Adenosine, Tocopherol, Sodium Hyaluronate, Allantoin, Citric Acid, Sodium Benzoate, Potassium Sorbate

Guru Score

85%

Yay

Early verdict · Few reviews so far

2Gurus

2Yay

0Mixed

0Nay

What they liked

Applies completely transparent, no white cast
Lightweight texture feels like a moisturiser
Affordable compared to Western sunscreens

What they flagged

Better for winter than humid summer days

What the gurus are saying

This sunscreen sets to an invisible finish with no white cast, and its lightweight, hydrating texture feels like applying a moisturizer rather than sun protection. It's fragrance-free and affordable at $9, marking a welcome departure from COSRX's recent scented sunscreens. One catch: it contains witch hazel extract, which reviewers either appreciate or find irritating, so those with sensitive skin may want to patch-test first.

Synthesized from 2 expert reviews · most recent take April 2026

Best for

Oily skin Combination skin

Type

SunscreenLiquid

Key actives

Niacinamide Hyaluronic acidVitamin ESPF

Formula notes

Fragrance-freeNo drying alcohol

Where to buy

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

AliceintheRabbitHole

59k subs

✓Yay

"This invisible sunscreen ultra light from COSRX is like applying a moisturizer. It's gorgeous, and it's amazing that it's so much more affordable than western sunscreens."

No BS Beauty

89k subs

✓Yay

"It's fragrance free, alcohol free. It does contain a little bit of witch hazel extract. This one's got four filters in it, so it doesn't have as many as some of the other K beauty ones I've mentioned. It's got a nice lightweight sunscreen, no frills. I'll use this one more in the winter than in the strong summer and humid days and things like that, but it's still pretty nice."

All 3 takes from No BS Beauty

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"This chemical sunscreen provides SPF 50 protection against harmful UV rays. Infused with aloe leaf water and witch hazel extract, this formula hydrates and soothes sun irritated skin. It also contains niacinamide and vitamin E for brightening and antioxidant benefits. Its lightweight texture adheres smoothly and doesn't leave a white cast, and I am so happy I picked this one up. This could be COSRX's best sunscreen yet. They've had a lot of great sunscreens but then they add fragrance to them and I can't use them as much, or they have some tone-up sunscreens which I hate. Every tone-up product I use I just don't like them. So they might have knocked it out of the ballpark with this one. It does not contain drying types of alcohol, but it does contain witch hazel, which is generally almost always denatured with alcohol so there could be some residual denatured alcohol from that. Witch hazel is also an antioxidant but it also can be irritating for some people, so I think that's an ingredient that some people either love or hate. If it's in a small amount I don't notice it and I'm fine."

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"COSRX Ultra Light Invisible Sunscreen, nine bucks. COSRX come with a lot of sunscreens lately but this one thankfully was a winner for me. The last couple ones they released were too scented, this one has no scent at all and it's literally invisible. Once it soaks in it sets to an invisible finish just like they say. So in here we've got chemical filters, we've got four of them, then we've got vitamin E, allantoin and adenosine for some other additional beneficial ingredients. I love it. No scent, non-drying, feels nice and hydrating and calming on skin, works great under makeup or foundation. There's nothing more I could ask for when it comes to sunscreen. This hits everything, meanwhile being sensitive skin friendly. If you have a deeper skin tone the filters are very friendly for that and they're great filters too."

What the evidence says.

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

Niacinamide

Niacinamide has evidence behind it for redness, uneven tone and supporting the skin barrier, and it is usually well tolerated even by skin that reacts to most things.

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

Vitamin E

Vitamin E is an antioxidant, and it is often in a formula to keep the other ingredients stable rather than as the active itself. It pairs well with vitamin C, though on its own the evidence for visible change is limited.

Source: NIH, National Library of Medicine

Frequently asked.

What is COSRX Ultra Light Invisible Sunscreen?

An SPF 50 lightweight chemical sunscreen that provides UV protection with an invisible-setting finish.

Is COSRX Ultra Light Invisible Sunscreen worth it?

Yes. All 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 85%.

What is COSRX Ultra Light Invisible Sunscreen's Guru Score?

COSRX Ultra Light Invisible Sunscreen holds a Guru Score of 85%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.