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HYDROXYPROPYLCELLULOSE STEARYL CARBAMATE.

Insufficient Data CAS 196885-14-0 / VISCOSITY CONTROLLING

Hydroxypropylcellulose Stearyl Carbamate is a modified cellulosic polymer likely derived to enhance specific formulation properties. It is anticipated to function as a film-former, helping to create a protective barrier on the skin's surface, thereby aiding in moisture retention and potentially improving the delivery of other cosmetic actives. This derivative may also contribute to the texture and stability of formulations.

Summary

film-former thickener emulsifier stabilizer moisturizing (potential) controlled release agent (potential)

Science

Mechanism of Action

This ingredient, a stearyl carbamate derivative of Hydroxypropylcellulose (HPC), is expected to retain the core functionalities of its parent compound. HPC is recognized for its ability to form a non-occlusive film on the skin, reducing transepidermal water loss (TEWL) and offering moisturizing benefits. It also acts as a thickener, emulsifier, and stabilizer within cosmetic formulations, contributing to texture and product integrity. The stearyl carbamate modification likely introduces lipophilic characteristics, potentially optimizing its surface activity, emulsification capabilities, or sensory profile, though the precise cutaneous mechanism for this specific derivative is not extensively detailed in current research.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Unknown
Optimal pH N/A
0 7 14

Stability

For the parent compound, Hydroxypropylcellulose (HPC), solutions typically maintain stability across a wide pH range of 2 to 10. Optimal viscosity stability for HPC is generally observed between pH 6.0 and 8.0. It is susceptible to degradation via acid hydrolysis or alkali-catalyzed oxidation, which can lead to reduced molecular weight and decreased viscosity. To mitigate degradation, buffering to pH 6.0-8.0, maintaining low temperatures, and employing antioxidants are recommended for HPC. It is crucial to note that these stability characteristics are specific to HPC and may not directly translate to the stearyl carbamate derivative.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

Specific safety assessments for Hydroxypropylcellulose Stearyl Carbamate by regulatory bodies such as CIR, SCCS, or FDA are not available. The Cosmetic Ingredient Review (CIR) Expert Panel has evaluated Hydroxypropylcellulose (the parent compound) and deemed it safe for use in cosmetic formulations, citing its large molecular weight as a factor that makes significant skin absorption improbable. However, this assessment does not directly apply to the stearyl carbamate derivative, for which independent safety data is currently lacking.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Insufficient Data

While its parent compound, Hydroxypropylcellulose, is well-studied and considered safe, specific data regarding the clinical efficacy, safety profile, and precise formulation characteristics of Hydroxypropylcellulose Stearyl Carbamate remains largely unresearched.

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References

Sources