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COSRX
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A 150 ml first-step serum with six peptides, unusually large for a serum because it is designed as a booster used generously before everything else, closer to a Korean skin or watery essence than a concentrate.
Who it's for. All skin types wanting a light preparatory layer, and skin that looks slack or dull by evening.
How to use. After cleansing and toner, apply two or three drops as the first serum and press in. Follow with your other serums and moisturizer. Morning and night.
Key active. A six-peptide complex, short amino acid chains used in cosmetics for the look of firmer, smoother skin. Peptides applied on top work at the surface, and topical collagen does not replace the collagen in your skin.
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 150 ml first-step serum with six peptides, unusually large for a serum because it is designed as a booster used generously before everything else, closer to a Korean skin or watery essence than a concentrate.
All skin types wanting a light preparatory layer, and skin that looks slack or dull by evening.
After cleansing and toner, apply two or three drops as the first serum and press in. Follow with your other serums and moisturizer. Morning and night.
A six-peptide complex, short amino acid chains used in cosmetics for the look of firmer, smoother skin.
Peptides applied on top work at the surface, and topical collagen does not replace the collagen in your skin.
The steps that go with it, added in one click
Routine total
$122.00
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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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