Science
Mechanism of Action
This ingredient functions as a highly effective humectant, drawing water molecules into the skin to deliver deep hydration and improve suppleness. It forms an invisible, protective film on the skin's surface, bolstering its defense against environmental stressors such as pollution and UV radiation, and consequently reducing irritation. Furthermore, it supports the skin's natural microbiome balance and promotes cellular regeneration for a softer, more radiant complexion. Its biological action includes interaction with key receptors like CD44, RHAMM, and TLR2/4, stimulating keratinocyte proliferation, fibroblast activation, and extracellular matrix (ECM) support, which collectively optimize skin health and appearance.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 The Cosmetic Ingredient Review (CIR) Expert Panel has confirmed its function as a skin conditioning agent in concentrations up to 2%.
- 02 A clinical trial using a 2% hyaluronic acid gel (citing the safety assessment of hyaluronates) reported no adverse effects.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As the potassium salt form of hyaluronic acid, it offers enhanced stability and water solubility compared to its free acid. Hyaluronic acid solutions are sensitive to extreme pH values, with degradation occurring outside the 4.0-11.0 range. Optimal stability is maintained within a pH range of 5.0 to 8.0.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that Potassium Hyaluronate, alongside Hyaluronic Acid and Sodium Hyaluronate, is safe for cosmetic use at concentrations up to 2%. Animal studies showed no immunogenic or sensitizing potential, and extensive clinical application has been free of significant adverse reactions. Its FDA status in cosmetics is covered under the broader CIR assessment of hyaluronates; no specific SCCS opinion was identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Potassium Hyaluronate is a valuable, well-tolerated humectant that provides significant hydration, supports skin barrier function, and promotes overall skin health across all skin types due to its low irritancy and comedogenicity.
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References
Sources