Isntree Ultra Low Molecular Hyaluronic Acid Serum 50ml – 14 HA types Ulleung Island sea water fragrance-free $22 K-beauty
Isntree HA Serum 14 types hyaluronic acid – every molecular weight surface to deep comprehensive hydration lightweight Korean
Isntree Ultra Low HA Serum Ulleung Sea Water – volcanic island minerals calcium magnesium potassium moisture balance Korean
Isntree HA Serum actives – Glyceryl Glucoside Madecassoside Centella Beta-Glucan Malachite Panthenol Allantoin Korean
Isntree HA Serum texture – lightweight instantly hydrated refreshed layer under serums and moisturizers Korean night routine
Isntree Ultra Low Molecular HA Serum INCI – 34 ingredients 14 HA forms 329Da ultra-low molecular Korean serum
Isntree HA Serum results – plump hydrated dewy moisture-balanced skin Korean 14 HA types ultra-low molecular serum
Isntree Ultra Low Molecular Hyaluronic Acid Serum 50ml – 14 HA types Ulleung Island sea water fragrance-free $22 K-beauty
Isntree HA Serum 14 types hyaluronic acid – every molecular weight surface to deep comprehensive hydration lightweight Korean
Isntree Ultra Low HA Serum Ulleung Sea Water – volcanic island minerals calcium magnesium potassium moisture balance Korean
Isntree HA Serum actives – Glyceryl Glucoside Madecassoside Centella Beta-Glucan Malachite Panthenol Allantoin Korean
Isntree HA Serum texture – lightweight instantly hydrated refreshed layer under serums and moisturizers Korean night routine
Isntree Ultra Low Molecular HA Serum INCI – 34 ingredients 14 HA forms 329Da ultra-low molecular Korean serum
Isntree HA Serum results – plump hydrated dewy moisture-balanced skin Korean 14 HA types ultra-low molecular serum

Isntree Ultra-Low Molecular Hyaluronic Acid Serum

$22.00$26.00
Quantity
🔒 Secure checkout · ✈️ Free US shipping $40+ · 🎁 Free samples with every order · 💬 Since 2018 — 100K+ orders served

A Korean hyaluronic acid serum from Isntree — 14 types of Hyaluronic Acid in a single lightweight formula, based on mineral-rich deep sea water sourced from Ulleung Island, Korea. Most HA serums contain 1–3 forms.

Contains fourteen different HA derivatives covering every molecular weight from ultra-low (329Da, absorbs deep) to crosspolymer (long-lasting surface film). Lightweight texture layers beautifully under other serums and moisturizers. Fragrance-free. Vegan. 50ml.

  • 14 Types of Hyaluronic Acid — Surface to Deep — fourteen distinct HA forms covering every molecular weight. Ultra-low molecular (329Da) absorbs deeper than standard HA for hydration beyond the surface. Crosspolymer HA forms a long-lasting moisture film. Surface, mid-depth, and deep hydration all in one serum — the most comprehensive HA complex in any K-beauty serum.
  • Ulleung Island Sea Water — Mineral-Rich Base — the serum's first ingredient is deep sea water from Ulleung Island (the same volcanic island source used by Round Lab). Rich in naturally occurring calcium, magnesium, and potassium that support moisture balance and help skin hold onto hydration longer.
  • Glyceryl Glucoside + Madecassoside + Beta-Glucan — Boost + Calm + Protect — Glyceryl Glucoside helps moisture flow more efficiently into skin. Madecassoside (Centella TECA active) calms redness and supports the barrier. Beta-Glucan soothes sensitive skin and strengthens the moisture barrier.
  • Malachite + Panthenol + Allantoin + Betaine — Mineral + Comfort — Malachite Extract provides copper-rich mineral antioxidant protection. Panthenol strengthens the barrier and retains moisture. Allantoin soothes and softens. Betaine adds plant-derived hydration depth.
  • Lightweight — Layers Under Everything — watery, non-sticky texture absorbs instantly. Works as a standalone hydrating serum or as a layering base under heavier serums and moisturizers. Particularly effective as a hydration-boost step during evening routines.

After toning, apply a moderate amount and gently pat for absorption. AM and PM. Fragrance-free. Vegan. 50ml.

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Shop the full Isntree collection, browse our serums and ampoules, or find more for dry skin.

Authentic Korean skincare at Olive Kollection since 2018 — free US shipping on orders $40+.

After toning, apply a moderate amount to skin and gently pat for better absorption.

Sea Water, Water, Methylpropanediol, Glycerin, Butylene Glycol, 1,2-Hexanediol, Betaine, Pentylene Glycol, Carbomer, Caprylyl Glycol, Allantoin, Tromethamine, Ethylhexylglycerin, Xanthan Gum, Panthenol, Malachite Extract, Hydrolyzed Hyaluronic Acid, Disodium EDTA, Glyceryl Acrylate/Acrylic Acid Copolymer, Glyceryl Glucoside, Sodium Hyaluronate, Potassium Hyaluronate, Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Crosspolymer, Dimethylsilanol Hyaluronate, Hydrolyzed Calcium Hyaluronate, Sodium Sulfated Hyaluronate, Madecassoside, Beta-Glucan, Sodium Stearoyl Hyaluronate, Sodium Oleoyl Hyaluronate