Science
Mechanism of Action
This ingredient operates by forming a continuous, resilient film on the skin, hair, or nails, which can offer protective or aesthetic benefits. Concurrently, it helps maintain the skin's optimal condition through its conditioning properties. Its role as a viscosity controlling agent allows for the precise adjustment of product texture, increasing or decreasing fluidity as required for specific formulation objectives.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
While specific optimal pH data for POLYESTER-7 in cosmetic formulations is not detailed, general polyester materials demonstrate stability within a pH range of 5 to 9, indicating a preference for neutral to mildly acidic or alkaline environments, and a susceptibility to strongly acidic or caustic conditions.
Safety
Safety Profile
EWG's Skin Deep assesses POLYESTER-7 with low concerns for cancer, allergies, immunotoxicity, and developmental/reproductive toxicity, and it is absent from their restricted lists. SkinSAFE categorizes products containing this ingredient as 'Irritant Free', 'Dye Free', and 'SLS Free'. While general textile polyester allergies exist, these are typically attributed to dyes or chemical treatments in fabrics, rather than the cosmetic grade POLYESTER-7 raw material itself, suggesting a minimal sensitization risk in topical applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
POLYESTER-7 is a valuable, multifaceted ingredient that effectively enhances product aesthetics and performance through film-forming, skin conditioning, and viscosity control, exhibiting low irritation and comedogenicity across all skin types.
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