Isntree Ultra-Low Molecular Hyaluronic Acid Serum 50ml

A 50 ml serum of ultra-low molecular weight hyaluronic acid, the concentrated version of the toner in the same line. It is a pure hydration serum with no acids, no vitamin actives and no fragrance load, which in Korea makes it the serum people keep in permanent rotation rather than run in short courses.

Who it's for. Dehydrated and dry skin, and skin currently sensitised by actives, retinoids or weather.

How to use. After toner, press two or three drops over face and neck on skin that is still damp; a humectant serum applied to bone-dry skin in a dry room has less water available to hold. Morning and night. Always follow with a moisturizer to seal it.

Key active. Ultra-low molecular weight hyaluronic acid, a humectant that binds water within the outer surface layers.

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.