Science
Mechanism of Action
This innovative ingredient functions by forming a dense, protective three-dimensional network on the skin's surface, acting as a 'water-filled micro-sponge'. This unique structure enables it to bind up to 1000 times its weight in water, which is approximately 5 times more than traditional hyaluronic acid. It continuously releases this bound water, providing sustained, long-term hydration and effectively minimizing transepidermal water loss (TEWL). Its cross-linked nature grants it superior stability against enzymatic degradation, ensuring a longer residence time on the skin and a more prolonged effect. Beyond its powerful humectant properties, it acts as a skin conditioning agent, enhancing elasticity, reducing the appearance of fine lines and wrinkles, and serving as a free radical scavenger. Furthermore, it helps form a smooth film that refines skin texture, supports the skin barrier, assists in shedding dead skin cells, and may offer protection against acne and infections, potentially also boosting the absorption of other active ingredients.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 A pilot comparative study published in the Journal of Drugs in Dermatology (2016) demonstrated that topical application of crosslinked Hyaluronic Acid significantly reduced transepidermal water loss (TEWL) by 27.8%. This performance notably surpassed high molecular weight HA, which showed a 15.6% reduction, and contrasted sharply with low molecular weight HA, which resulted in a 55.5% increase in TEWL.
- 02 In vivo and in vitro assessments confirm that Sodium Hyaluronate Crosspolymer establishes a protective film on the skin, facilitating the continuous release of bound water for extended moisturizing benefits. These tests also indicated a reduction in the appearance of deep mimic wrinkles and superior stability against enzymatic degradation compared to classic hyaluronic acid.
- 03 Further research indicates a rapid improvement in hydration, with levels potentially increasing by up to 62% within just one hour, in comparison to high-molecular weight hyaluronic acid.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Its cross-linked architecture confers enhanced stability, particularly against enzymatic degradation, allowing it to remain effective on the skin for extended periods compared to non-cross-linked hyaluronic acid. It typically forms a soft, pleasant hydrogel microparticle suspension.
Synergies
- This ingredient can serve as an effective delivery system, potentially enhancing the absorption and efficacy of both water-soluble and oil-soluble active ingredients.
Safety
Safety Profile
While the CIR Expert Panel has deemed non-crosslinked forms of Sodium Hyaluronate safe (up to 2% concentration), they explicitly stated that cross-linked variations like Sodium Hyaluronate Crosspolymer-2 are not covered under their existing assessment. Despite this, hyaluronic acid and its derivatives are broadly recognized for their exceptional gentleness, with reports of irritation, sensitization, or allergic reactions being exceedingly rare. SkinSAFE data further reinforces its benign profile, categorizing it as 'Teen SAFE', 'Baby SAFE', 'Eyelid SAFE', 'Irritant Free', 'Dye Free', 'SLS Free', 'Fragrance Free', and 'Common Preservative Free' for topical applications. It's important to note that FDA approval for cross-linked hyaluronic acid in dermal fillers pertains to injectable use and is not directly transferable to topical safety assessments.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A highly effective, advanced humectant that delivers superior, long-lasting hydration and anti-aging benefits by forming a stable, water-rich protective network on the skin.
Related
Similar Ingredients
Finding similar ingredients…