Science
Mechanism of Action
This ingredient operates by forming a substantive, protective film on the skin's surface. This barrier effectively minimizes transepidermal water loss (TEWL), thereby locking in essential moisture and maintaining skin hydration. Its inherent emollient qualities also facilitate improved product application and impart a desirable smooth texture to the skin.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
Effective concentrations for STEARALKONIUM DIMETHICONE PEG-8 PHTHALATE typically range from 0.5% to 3.0%. Utilizing this ingredient below 0.5% in formulations may indicate a minimal inclusion for label claims rather than for its intended functional benefits.
The Formula
Formulation
Stability
STEARALKONIUM DIMETHICONE PEG-8 PHTHALATE presents as a white to off-white solid with a mild odor, featuring a melting point between 75°C and 80°C. Formulations should be developed to ensure the final product is non-irritating.
Safety
Safety Profile
While the Cosmetic Ingredient Review (CIR) Expert Panel has generally affirmed the safety of related dimethicone polymers, STEARALKONIUM DIMETHICONE PEG-8 PHTHALATE itself has not undergone an independent safety assessment by industry panels or extensive peer-reviewed literature. However, the FDA considers it a skin protector with a good safety profile at low concentrations, attributed to its high molecular weight which leads to poor absorption by the skin or scalp. Recommended use levels range from 0.5% to 3.0%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
STEARALKONIUM DIMETHICONE PEG-8 PHTHALATE is a valuable ingredient for enhancing skin hydration and texture, functioning as an emollient and protective barrier suitable for all skin types within its recommended 0.5-3.0% concentration range.
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References
Sources