Isntree Ultra-Low Molecular Hyaluronic Acid Serum 50ml

Some skincare products make their purpose clear from the very first use. This one is built around a single, focused idea: getting hydration into the skin where it actually runs dry. Ulleung Island sea water — drawn from an isolated volcanic island off the Korean coast — replaces ordinary distilled water as the formula's base, bringing with it a natural mineral depth. Everything else follows a quiet, layering logic, working patiently beneath the surface rather than putting on a show.

Texture and ingredients — At the heart of the formula are 14 distinct forms of hyaluronic acid — ultra-low molecular weight fragments small enough to travel into the deeper layers of the epidermis, where standard molecules simply stop at the surface. These include Hydrolyzed Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Hydroxypropyltrimonium Hyaluronate and Sodium Hyaluronate Crosspolymer, each working at a different depth for plumpness that builds over time rather than appearing instantly. Allantoin and Panthenol support skin comfort and tolerance; Madecassoside and Beta-Glucan round out the formula by caring for the skin barrier. The texture stays fluid — just a few drops are enough to cover the whole face.

In your routine — Two to three drops in the palm of your hand, applied after toner by gently pressing into the skin until fully absorbed. The lightweight texture slots easily under a moisturiser without weighing down your routine or leaving any filmy residue. It's particularly well suited to skin that feels tight during the day or looks dull from lack of water rather than lack of oil — a distinction worth keeping in mind when putting your routine together.

• 14 forms of ultra-low molecular weight hyaluronic acid, including Sodium Hyaluronate Crosspolymer and Sodium Acetylated Hyaluronate, working at different depths within the skin.
• Formulated with Ulleung Island sea water in place of standard purified water.
• Madecassoside and Beta-Glucan included to support skin barrier comfort.
• 50 ml — roughly 4 to 6 weeks of daily use morning and evening with 2–3 drops each time.
• Fluid serum texture, designed to sit between toner and moisturiser without leaving any perceptible residue.