Science
Mechanism of Action
This ingredient functions by creating a lightweight, breathable film on the skin's surface, primarily due to its dimethicone component. This barrier actively minimizes transepidermal water loss, promoting sustained hydration and shielding the skin from environmental stressors. Concurrently, it temporarily smooths the appearance of fine lines and imparts a luxurious, silky tactile feel. The PEG-7 succinate portion renders the silicone water-soluble, facilitating its seamless integration into aqueous formulations and ensuring conditioning benefits without residual greasiness.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
For optimal stability, formulations incorporating this ingredient, or closely related PEG-8 Dimethicone, should ideally maintain a pH range between 5.5 and 8.5. Silicones generally exhibit robust stability to thermal variations and resistance to most chemical agents, though exposure to strong acids may compromise their integrity.
Conflicts
- strong acids
Safety
Safety Profile
The CIR Expert Panel has deemed dimethicone, methicone, and substituted-methicone polymers, including PEG dimethicones, safe for use in cosmetics when formulated to be non-irritating. An exception was noted for products potentially inhaled via airbrush devices, where data was insufficient. While specific maximum concentrations for DIMETHICONE PEG-7 SUCCINATE are not readily available, dimethicone itself has been reviewed up to 85% for dermal contact and is recognized by the FDA as a Category I (safe and effective) skin protectant at concentrations up to 30%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
DIMETHICONE PEG-7 SUCCINATE is a valuable conditioning agent that provides skin barrier protection and a smooth feel, with high formulation flexibility due to its water solubility.
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