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Isntree
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A 20 ml rinse-off exfoliating serum at a brand-published 30 percent total acid, blending AHA at 15.3 percent, BHA at 0.1 percent, PHA at 14.61 percent and LHA at 0.01 percent, in a charcoal-coloured formula of medium-high viscosity. It is rinse-off rather than leave-on precisely because of that total, and the small bottle matches a product used for one minute once or twice a week.
Who it's for. Rough texture, congested-looking areas and excess sebum, on skin already familiar with acids. Not for sensitive, irritated or barrier-compromised skin.
How to use. On clean skin, apply two or three drops avoiding eyes and lips, massage for about one minute, single pass per zone, then rinse thoroughly with lukewarm water. Once or twice a week, never on the same night as a retinoid. Follow with toner and moisturizer. Sunscreen every morning while using acids.
Key active. A four-acid blend of AHA, BHA, PHA and LHA at brand-published percentages, exfoliating acids that loosen dead surface cells during a short contact 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 rinse-off exfoliating serum at a brand-published 30 percent total acid, blending AHA at 15.3 percent, BHA at 0.1 percent, PHA at 14.61 percent and LHA at 0.01 percent, in a charcoal-coloured formula of medium-high viscosity. It is rinse-off rather than leave-on precisely because of that total, and the small bottle matches a product used for one minute once or twice a week.
Rough texture, congested-looking areas and excess sebum, on skin already familiar with acids. Not for sensitive, irritated or barrier-compromised skin.
On clean skin, apply two or three drops avoiding eyes and lips, massage for about one minute, single pass per zone, then rinse thoroughly with lukewarm water. Once or twice a week, never on the same night as a retinoid. Follow with toner and moisturizer. Sunscreen every morning while using acids.
A four-acid blend of AHA, BHA, PHA and LHA at brand-published percentages, exfoliating acids that loosen dead surface cells during a short contact time.
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Routine total
$114.00
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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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