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Isntree
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A 50 ml lightweight ampoule built on a natural vitamin complex and niacinamide, sold in Korea as a toning step rather than a brightening one. In Korean marketing, whitening and toning describe an evener, less patchy complexion, not lightening the skin, and the ampoule is the concentrated layer that sits between toner and cream in that routine. Isntree does not publish a percentage for the vitamin complex, and we are not going to invent one.
Who it's for. Skin that looks dull or grey by evening, and anyone working on the appearance of uneven tone. Normal to combination skin; the fluid texture layers without weight.
How to use. After toner, press 2-3 drops into slightly damp skin with the palms rather than rubbing, morning and night, then seal with moisturizer. Daily sunscreen matters here, because tone work is undone faster by sun than it is built by any serum.
Key active. Niacinamide, supported by a vitamin complex, used as a cosmetic tone-evening and skin-conditioning agent.
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 50 ml lightweight ampoule built on a natural vitamin complex and niacinamide, sold in Korea as a toning step rather than a brightening one. In Korean marketing, whitening and toning describe an evener, less patchy complexion, not lightening the skin, and the ampoule is the concentrated layer that sits between toner and cream in that routine.
Skin that looks dull or grey by evening, and anyone working on the appearance of uneven tone. Normal to combination skin; the fluid texture layers without weight.
After toner, press 2-3 drops into slightly damp skin with the palms rather than rubbing, morning and night, then seal with moisturizer. Daily sunscreen matters here, because tone work is undone faster by sun than it is built by any serum.
Niacinamide, supported by a vitamin complex, used as a cosmetic tone-evening and skin-conditioning agent.
Isntree does not publish a percentage for the vitamin complex, and we are not going to invent one.
The steps that go with it, added in one click
Routine total
$87.00
4 products · added in one click
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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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