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Moumoujus

DIMETHICONE PEG-7 ISOSTEARATE.

Valuable CAS 133448-16-5 / HAIR CONDITIONING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

DIMETHICONE PEG-7 ISOSTEARATE is a multi-functional dimethicone copolyol ester that forms a temporary, non-greasy barrier on the skin. It enhances hydration by reducing trans-epidermal water loss and visibly smooths skin texture by addressing fine lines and imperfections.

Summary

Skin conditioning Emollient Lubricant Slip modifier Co-emulsifier Hair conditioning

Science

Mechanism of Action

This dimethicone derivative creates a protective film on the skin's surface, effectively minimizing trans-epidermal water loss (TEWL) and thereby locking in essential moisture. It acts as an emollient and lubricant, softening and smoothing the skin while filling in microscopic crevices to improve overall texture. Its water-dispersible nature ensures that it provides conditioning benefits without leading to the greasiness or buildup often associated with water-insoluble silicones.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

No specific optimal pH range or stability notes were detailed in the research data.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that dimethicone and its related polymers, including DIMETHICONE PEG-7 ISOSTEARATE, are safe for use in cosmetics. This assessment is based on their large molecular weights, which significantly limit skin absorption. While a re-review was initiated due to increased use, particularly in inhalable products, the overall safety for dermal application remains positive. Polyethylene glycols (PEGs) and their derivatives are generally known for their very good skin tolerance.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

DIMETHICONE PEG-7 ISOSTEARATE is a valuable multi-functional ingredient that enhances skin hydration by reducing water loss, provides a smoothing effect on texture, and exhibits a low risk of irritation or comedogenicity across all skin types.

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