Science
Mechanism of Action
This ingredient, a sodium salt of oxidized cellulose, acts broadly as a cellulose derivative. In skincare, it is attributed with skin conditioning and emollient properties, contributing to a smooth feel and potentially forming a protective film on the skin to minimize moisture loss. Beyond skincare, oxidized cellulose functions notably in medical applications as a hemostatic agent by activating the intrinsic coagulation pathway, interacting with blood platelets and plasma proteins to form a clot-facilitating gel. Its low pH also confers bactericidal properties by creating an inhospitable environment for most bacteria.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 Specific clinical studies on 'Sodium Oxidized Cellulose' for healthy skin applications at effective concentrations are not readily available. However, related forms like oxidized regenerated cellulose (ORC)/collagen dressings have demonstrated favorable outcomes in wound healing, showing improved healing rates and percentage wound reduction in chronic skin wounds (e.g., diabetic foot ulcers, venous leg ulcers, pressure injuries, and skin graft donor sites) compared to traditional dressings.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Sodium Oxidized Cellulose is generally water-soluble or dispersible, particularly after neutralization steps during its preparation, which can occur at a pH of 10.5. It can form stable dispersions within hydroalcoholic systems. However, strongly alkaline conditions (pH > 9) are noted to potentially lead to instability or reduced functionality for some oxidized cellulose derivatives due to the hydrolysis of ester cross-links. While optimal hemostatic and antibacterial activity is observed at a pH of 3-4, this specific pH range primarily pertains to its medical functions and not necessarily its optimal stability or efficacy for general skincare applications.
Conflicts
- Strongly alkaline conditions (pH > 9) can lead to instability or reduced functionality.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) and the Scientific Committee on Consumer Safety (SCCS) have not specifically reviewed 'Sodium Oxidized Cellulose' for cosmetic use. While similar oxidized cellulose (e.g., calcium/sodium salt forms) is cleared by the FDA for medical devices like hemostatic dressings, cosmetic ingredients generally do not require FDA pre-market approval in the U.S. The INCIDecoder database flags this ingredient with a 'high' irritancy rating, indicating a notable potential for skin irritation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While offering potential as a skin conditioning agent and formulation aid in cosmetics, the high irritancy potential and absence of direct clinical studies validating its benefits for healthy skin applications raise significant concerns regarding its suitability for precision skincare formulations.
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