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COSRX
In stock
A 20 ml oil carrying 0.5% pure retinol, the strongest step in the COSRX retinol line, delivered in an oil base because retinol is unstable in water. The small opaque bottle is deliberate: light and air degrade the active, so this is a format you finish rather than stockpile.
Who it's for. Skin already used to retinol, looking at fine lines and rough texture. Not for use during pregnancy or while breastfeeding, so ask your doctor. Not for sensitive or currently irritated skin.
How to use. At night only. Start two nights a week and build up slowly over several weeks. Two or three drops on dry skin after cleansing, avoiding the eye area, then moisturizer. Broad-spectrum sunscreen every morning is mandatory with retinol. Some dryness and flaking in the first weeks is normal; stop if skin becomes sore.
Key active. Retinol at 0.5%, a vitamin A derivative used in cosmetics to smooth the look of fine lines and refine surface texture over time.
Sourced in Seoul. This is the Korean domestic SKU, not a reformulated export version.
All orders ship from South Korea. Your order is picked and packed by our logistics partner in Bucheon-si, Gyeonggi-do, then travels to the United States as an international shipment.
Handling 1-3 business days, international transit and customs clearance 7-11 business days. Total estimated delivery 8-14 business days. These are estimates, not guarantees.
Free shipping on orders $120+; a flat $12.99 below that. The $120 threshold applies to your order total after any automatic discount. Product prices do not include U.S. import duties or customs fees, which are billed by the carrier and are the responsibility of the recipient.
You may request a return within 30 days of delivery on unused, unopened items. Returns ship to our facility in South Korea and require a Return Authorization Number, which you must request from us before sending anything.
The full ingredient list (INCI) is printed on the product packaging. These are authentic Korean-market formulations sourced directly in Seoul - the domestic SKU, not a reformulated export version.

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A 20 ml oil carrying 0.5% pure retinol, the strongest step in the COSRX retinol line, delivered in an oil base because retinol is unstable in water. The small opaque bottle is deliberate: light and air degrade the active, so this is a format you finish rather than stockpile.
Skin already used to retinol, looking at fine lines and rough texture. Not for use during pregnancy or while breastfeeding, so ask your doctor. Not for sensitive or currently irritated skin.
At night only. Start two nights a week and build up slowly over several weeks. Two or three drops on dry skin after cleansing, avoiding the eye area, then moisturizer. Broad-spectrum sunscreen every morning is mandatory with retinol. Some dryness and flaking in the first weeks is normal; stop if skin becomes sore.
Retinol at 0.5%, a vitamin A derivative used in cosmetics to smooth the look of fine lines and refine surface texture over time.
The steps that go with it, added in one click
Routine total
$161.00
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100% authentic
Sourced in Korea from the brands. Never counterfeit.
Ships from Seoul
Dispatched from Bucheon. 8-14 business days to the US.
Free shipping $120+
Flat $12.99 under $120. Import duties not included.

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