IZEZE Soul HNA Hydro Serum 30ml

IZEZE Soul HNA Hydro Serum

IZEZE Soul HNA Hydro Serum is a lightweight, fast-absorbing hydrating serum carrying dual KFDA functional cosmetic certification for both Whitening and Wrinkle Improvement. Formulated on an EWG Green-grade Chamaecyparis Obtusa (Hinoki Cypress) Water base and powered by an 8-Type Hyaluronic Acid Complex, a 7-Type Fermented Botanical Complex, and a trio of targeted functional actives — Niacinamide, Adenosine, and Panthenol — this serum delivers comprehensive multi-depth hydration while simultaneously brightening the complexion, reducing fine lines, and reinforcing the skin barrier. Designed as a treatment step between toner and moisturiser, its thin, water-like texture absorbs smoothly without residue, making it suitable for all skin types including sensitive, oily, and combination skin. Free from 18 potentially harmful ingredients and part of the IZEZE Soul HNA line alongside the matching Hydro Toner and Hydro Cream.

Chamaecyparis Obtusa (Hinoki Cypress) Water — EWG Green Grade Functional Base

The serum’s aqueous base is Chamaecyparis Obtusa Water — the hydrosol of the Hinoki cypress tree — rather than conventional purified water. This EWG Green-rated ingredient contains naturally occurring phytoncide terpenoids (alpha-pinene, sabinene, terpinen-4-ol) that contribute measurable antimicrobial activity against skin-surface bacteria and fungi, and mild anti-inflammatory properties that reduce the risk of breakout and irritation in sensitive skin. Its use as the primary base means that even the solvent itself contributes active biological benefits — distinguishing this formula from conventional water-based serums.

8-Type Hyaluronic Acid Complex — Full-Spectrum Multi-Depth Hydration

The HNA designation reflects the serum’s most defining feature: a complete eight-form Hyaluronic Acid system engineered to deliver hydration at every accessible skin depth simultaneously, from the outermost stratum corneum to the deep viable epidermis:

• Sodium Hyaluronate (Large-Molecule HA): Remains at the skin surface, forming a moisture-retaining film that prevents TEWL and delivers an immediate plumping and smoothing effect on the skin’s outer texture
• Hyaluronic Acid (Medium-Molecule HA): Penetrates the upper stratum corneum to bind water within the intercellular spaces of the epidermis, improving intrinsic moisture content and skin suppleness
• Hydrolyzed Hyaluronic Acid (Small-Molecule HA): Low-molecular-weight HA fragments that penetrate more deeply through the stratum corneum, delivering moisture to the viable epidermis while exhibiting mild anti-inflammatory activity that calms sensitivity and redness
• Sodium Hyaluronate Crosspolymer: A three-dimensionally crosslinked HA network with extended moisture-retaining capacity and sustained-release hydration that continues delivering moisture over time — not just immediately after application
• Hydroxypropyltrimonium Hyaluronate: A cationic quaternary ammonium derivative of HA that carries a positive charge, enabling stronger electrostatic binding to the negatively charged skin surface. This improves HA deposition efficiency and extends the duration of the surface moisture effect
• Sodium Acetylated Hyaluronate: A lipophilic acetylated HA derivative with enhanced compatibility with the skin’s lipid matrix. This oil-friendly form integrates more effectively with surface sebum and lipids, creating a more durable, wash-resistant moisture film with superior long-term retention
• Hydrolyzed Glycosaminoglycans: Low-molecular-weight fragments of the glycosaminoglycan family — the broader structural polysaccharide class that includes HA, chondroitin sulfate, dermatan sulfate, and heparan sulfate. These ECM-identical fragments penetrate into the dermis to replenish the skin’s deep structural moisture matrix, contributing to improved skin turgor, elasticity, and volume
• Hyaluronic Acid (complementary form): An additional HA form that rounds out the full molecular weight spectrum, ensuring complete coverage of all hydration layers without any gaps between depths

7-Type Fermented Complex — Postbiotic Vitality & Barrier Intelligence

The fermented complex uses distinct microbial strains to biotransform seven botanical substrates into postbiotic extracts with enhanced bioavailability and skin activity:

• Aspergillus/Rice Ferment Extract: Koji mould fermentation of rice generates Kojic Acid (tyrosinase inhibition, brightening), Ferulic Acid (UV-protective antioxidant), and B-vitamins that promote skin clarity and barrier function
• Aspergillus/Saccharomyces/Barley Seed Ferment Extract: Dual-fungal fermentation of barley produces Beta-Glucan, amino acids, B-vitamins, and Selenium that strengthen skin immunity and barrier integrity
• Bacillus/Soybean Ferment Extract: Bacillus subtilis fermentation of soybean (natto-process) generates Nattokinase, fermented Isoflavones (Genistein, Daidzein), and bioactive peptides that improve skin elasticity and provide phytoestrogenic firming activity
• Lactobacillus/Portulaca Oleracea Ferment Extract: Lactic acid fermentation amplifies purslane’s naturally high Omega-3 and betacyanin antioxidant content into a probiotic-enhanced soothing postbiotic with potent anti-inflammatory and calming benefits for reactive skin
• Lactobacillus/Pumpkin Ferment Extract: Fermentation increases the bioavailability of pumpkin’s carotenoids (beta-carotene, lutein), Zinc, and Vitamin E, supporting antioxidant defence, sebum regulation, and accelerated barrier repair
• Lactobacillus/Punica Granatum (Pomegranate) Ferment Extract: Fermentation enhances the skin penetration and activity of pomegranate’s Ellagic Acid and Punicalagins — exceptionally potent polyphenol antioxidants — while contributing organic acids that support gentle skin renewal and luminosity
• Saccharomyces/Grape Ferment Extract: Yeast fermentation of grape biomass (skins, seeds, pulp) produces bioavailable Resveratrol, Oligomeric Proanthocyanidins (OPCs), and fermentation-derived B-vitamins with powerful antioxidant, anti-inflammatory, and collagen-supporting activity

Niacinamide + Adenosine — KFDA Dual Functional Certification

Niacinamide holds KFDA Whitening certification through its demonstrated mechanism of inhibiting melanosome transfer from melanocytes to keratinocytes, reducing pigmentation and evening skin tone. It also stimulates ceramide synthesis, improving barrier function, and reduces sebum production and pore visibility through anti-inflammatory sebostatic activity. Adenosine holds KFDA Anti-Wrinkle certification through its ability to stimulate collagen type I synthesis in dermal fibroblasts and inhibit matrix metalloproteinases (MMPs) that degrade existing collagen — producing firmer, smoother skin and reduced fine line depth with consistent use.

Panthenol, Arginine & Tocopheryl Acetate — Barrier Repair & Antioxidant Support

Panthenol (Provitamin B5) — present in the serum but not in the companion cream — penetrates into the epidermis where it converts to Pantothenic Acid, a key component of Coenzyme A essential for barrier lipid synthesis. Panthenol supports epidermal cell proliferation, accelerates barrier repair, reduces skin roughness, and provides well-validated anti-inflammatory and wound-healing activity — making it particularly valuable in a serum format where barrier treatment is a priority step. Arginine, a conditionally essential amino acid, acts as a skin-compatible pH optimiser that maintains the formula at a mildly acidic pH close to the skin’s own acid mantle, while also contributing amino acid NMF replenishment and mild wound-healing support. Tocopheryl Acetate (Vitamin E ester) provides lipid-soluble antioxidant protection, neutralising UV-induced and pollution-generated free radicals in the skin’s sebum layer and protecting cell membrane lipid integrity. Allantoin rounds out the formula with its well-established soothing, keratolytic, and cell-renewal-promoting properties, supporting comfortable, calm skin throughout the day.

How to Use

After cleansing and toning, dispense an appropriate amount using the dropper and apply evenly to the face. Gently pat into the skin until fully absorbed. Follow with moisturiser. Use morning and evening. Can be layered with the IZEZE Soul HNA Hydro Toner and Hydro Cream for a complete hydration routine.