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Isntree
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A 20 ml serum at a brand-published 23 percent pure vitamin C, from Isntree's Hyper line of small-format high-actives. The size is the formulation talking: pure ascorbic acid degrades once it is opened and exposed to air and light, so Korean brands sell it in a small bottle meant to be finished in a couple of months rather than in a jar that lasts a year.
Who it's for. Dull-looking skin and the appearance of uneven tone, on skin already used to actives. High-percentage vitamin C can sting on sensitive skin; patch test first.
How to use. After toner, press two or three drops over the face, once a day. Start every other day. Follow with moisturizer. Sunscreen every morning is the other half of this product. Keep the bottle closed, cool and out of the light; a deepening amber colour means it is oxidising.
Key active. Pure vitamin C at a brand-published 23 percent, an antioxidant used cosmetically for a brighter, evener-looking complexion.
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 serum at a brand-published 23 percent pure vitamin C, from Isntree's Hyper line of small-format high-actives. The size is the formulation talking: pure ascorbic acid degrades once it is opened and exposed to air and light, so Korean brands sell it in a small bottle meant to be finished in a couple of months rather than in a jar that lasts a year.
Dull-looking skin and the appearance of uneven tone, on skin already used to actives. High-percentage vitamin C can sting on sensitive skin; patch test first.
After toner, press two or three drops over the face, once a day. Start every other day. Follow with moisturizer. Sunscreen every morning is the other half of this product. Keep the bottle closed, cool and out of the light; a deepening amber colour means it is oxidising.
Pure vitamin C at a brand-published 23 percent, an antioxidant used cosmetically for a brighter, evener-looking complexion.
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$87.00
4 products · added in one click
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Sold out100% 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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