COSRX

Retinol 0.5%.

Retinoids

About this product

A lightweight retinol serum formulated with 0.5% retinol and vitamin E, designed to support skin renewal and address signs of aging.

Best for

Mature skin

Type

RetinoidsDrops & dropper

Key actives

RetinoidVitamin ESqualane

Formula notes

Fragrance-freeNo drying alcohol

Full ingredients

Squalane, Glycine Soja (Soybean) Oil, Di-C12-13 Alkyl Malate, Retinol (0.5%), Caprylic/Capric Triglyceride, BHT, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Hydroxymethoxyphenyl Decanone, Water, Propanediol, Glycerin, Tocopheryl Acetate, Cetearyl Alcohol, Trehalose, Panthenol, Butyrospermum Parkii (Shea) Butter, Ammonium Acryloyldimethyltaurate/VP Copolymer, Dimethicone, Glyceryl Polymethacrylate, Helianthus Annuus (Sunflower) Seed Oil, Polyglyceryl-10 Stearate, Hydrogenated Lecithin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Carbomer, Tromethamine, Glyceryl Stearate, Polysilicone-11, Sodium Sulfite, Daucus Carota Sativa (Carrot) Root Extract, Retinol (0.1%), Allantoin, Glyceryl Caprylate

Guru Score

78%

Approved

Early verdict · Few reviews so far

2Gurus

2Approved

0Mixed

0Skip

What the gurus are saying

This retinol earns praise for being moisturizing alongside its anti-aging work, thanks to the vitamin E in the formula. The standout caveat is that retinol at this strength is still potent enough that those with sensitive skin may want to start slowly, perhaps a few times a week, and build up as their skin adjusts. The gurus see it as an effective option for anyone ready to use retinol consistently but sensibly, rather than aggressively.

Synthesized from 2 expert reviews · most recent take April 2026

Where to buy

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How it works Independent by design. Every take comes from a creator we have no relationship with. We do not ask anyone to review, and affiliate links never move a score.

Every take, in full

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.

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Darnell Cox | 50+ Healthy Aging Expert

54k subs

✓Approved

"COSRX Retinol 0.5 is a super vitamin E plus one. So it's moisturizing as it is a retinol. It's a great product. But that's retinol, so it's going to be a little bit more for not for sensitive skin. I don't want to say that because the new trend is not to thrash your skin like crazy. It's to use gentler products that are effective used consistently in a strategic way."

Nipun Kapur

401k subs

✓Approved

"If you are size try something and Korea skincare is the cosrx retinol 0.5% which is an red it has 0.5% concentration"

Common questions

Frequently asked.

What is COSRX Retinol 0.5%?

A lightweight retinol serum formulated with 0.5% retinol and vitamin E, designed to support skin renewal and address signs of aging.

Is COSRX Retinol 0.5% worth it?

Yes. All 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 78%.

What is COSRX Retinol 0.5%'s Guru Score?

COSRX Retinol 0.5% holds a Guru Score of 78%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 independent expert reviewers we have collected.