Ultra Low Molecular Hyaluronic Acid Serum - 1.69 oz

Quench your skin’s deepest thirst with the Isntree Ultra-Low Molecular Hyaluronic Acid Serum, a lightweight, vegan hydration powerhouse designed to penetrate where others can't. Unlike standard serums that sit on the surface, this formula features ultra-low molecular weight hyaluronic acid (329 Da) that dives deep into the dermis to replenish moisture from within. This isn't just about surface shine; it’s about rebuilding your skin's inner reservoirs to create a firm, bouncy complexion that feels "drinkable" and looks instantly refreshed for up to 24 hours.

The clinical-grade formula is built on a foundation of mineral-rich deep seawater from Ulleung Island, Korea, which naturally boosts skin vitality with essential magnesium and potassium. By combining 14 distinct types of hyaluronic acid with glyceryl glucoside—an ingredient that activates the skin's natural water channels—this serum ensures that hydration is not only delivered but locked in place. It acts like a "3-second moisturizing" treatment, sinking in immediately without a trace of stickiness or that heavy, tacky feel common in high-concentration serums.

Crafted for those with oily, combination, or sensitive skin that needs moisture without the weight, this serum is a masterclass in clean, effective K-Beauty. The inclusion of madecassoside and beta-glucan provides a soothing, anti-inflammatory embrace, calming redness and strengthening the moisture barrier against environmental stressors. Free from artificial fragrances, mineral oils, and drying alcohols, it offers a pure, fragrance-free experience that respects your skin’s natural pH and leaves it feeling incredibly smooth and resilient.

14-Layer Multi-Hydration: Utilizing 14 types of hyaluronic acid, this serum delivers moisture to various depths of the skin to ensure comprehensive, multi-level hydration. This diverse molecular range helps to visibly plump the skin and reduce the appearance of fine lines by filling the moisture gap from the inside out.

Ultra-Low 329 Da Molecules: The "ultra-low" molecular weight of 329 Da allows for superior skin penetration compared to standard hyaluronic acid, reaching deep into the dehydrated layers almost instantly. This results in a "3-second moisturizing" effect where the skin feels quenched and refreshed without any surface residue.

Barrier-Strengthening Botanicals: Enriched with madecassoside and beta-glucan, the serum helps to fortify the skin’s natural moisture barrier while providing essential anti-inflammatory care. These ingredients work together to soothe sensitive or irritated skin, making it an ideal choice for complexions prone to redness or fungal acne.

Mineral-Rich Sea Water Base: Formulated with deep seawater from Ulleung Island, Korea, the serum infuses the skin with vital nutrients like magnesium, calcium, and potassium. This mineral infusion helps to speed up the healing process and combat skin infections while maintaining long-lasting moisture retention.

Clean & Fast-Absorbing Formula: The lightweight, vegan liquid is strictly free of artificial fragrances, essential oils, and drying alcohols to ensure maximum compatibility with reactive skin types. It absorbs quickly into the pores, leaving a fresh, balanced finish that won't interfere with your favorite sunscreen or makeup application.