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Isntree
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A 20 ml serum at a brand-published 1 percent Retinol EX, part of Isntree's Hyper line of small-bottle high-actives. Retinol is packaged small and opaque for the same reason vitamin C is: it degrades with air and light, and a bottle meant to be used a few drops at a time in the evening does not need to be large. Isntree positions it as well-aging care for the look of fine lines and wrinkles.
Who it's for. Skin working on the appearance of fine lines and wrinkles. Not for use during pregnancy or breastfeeding, and not for skin that is currently irritated or peeling.
How to use. Evenings only. Start two to three times a week and increase gradually as tolerance builds; do not add other acids on the same night at first. After toner, press two or three drops on, wait a minute, then apply moisturizer. Daily sunscreen is mandatory with a retinoid.
Key active. Retinol at a brand-published 1 percent, a vitamin A derivative used cosmetically to smooth the look of surface lines and refine texture.
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 1 percent Retinol EX, part of Isntree's Hyper line of small-bottle high-actives. Retinol is packaged small and opaque for the same reason vitamin C is: it degrades with air and light, and a bottle meant to be used a few drops at a time in the evening does not need to be large. Isntree positions it as well-aging care for the look of fine lines and wrinkles.
Skin working on the appearance of fine lines and wrinkles. Not for use during pregnancy or breastfeeding, and not for skin that is currently irritated or peeling.
Evenings only. Start two to three times a week and increase gradually as tolerance builds; do not add other acids on the same night at first. After toner, press two or three drops on, wait a minute, then apply moisturizer. Daily sunscreen is mandatory with a retinoid.
Retinol at a brand-published 1 percent, a vitamin A derivative used cosmetically to smooth the look of surface lines and refine texture.
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Routine total
$96.00
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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