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GLYCERETH-17 POLYHYDROXYSTEARATE.

Insufficient Data / EMULSION STABILISING

GLYCERETH-17 POLYHYDROXYSTEARATE is a multifunctional ester designed to enhance cosmetic formulation stability and texture. It acts as an effective emulsifier and dispersant, notably for pigments, while simultaneously delivering skin conditioning benefits. This ingredient contributes to a smoother product feel, improved spreadability, and supports skin hydration for a soft, smooth complexion.

emulsifying skin conditioning dispersing emollient

Science

This ingredient functions through a synergistic action of its two main components. The polyhydroxystearate portion is recognized for its emollient, film-forming, and skin barrier-supporting properties, which are critical for retaining moisture and promoting skin softness and smoothness. Concurrently, the glycereth segment, common in glycereth esters, provides additional humectant, solubilizing, and emulsifying characteristics. This combined activity allows for the creation of stable emulsions, uniform pigment dispersion, and a superior sensory experience through improved product texture and spreadability.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Similar to other Glycereth esters, this ingredient is prone to oxidation and may undergo hydrolysis when exposed to strong acidic or alkaline conditions.

Conflicts

  • Glycolic acid
  • Benzoyl Peroxide
  • Retinol

Safety

CIR Status
Insufficient data
Sensitization risk Unknown

A specific safety assessment for GLYCERETH-17 POLYHYDROXYSTEARATE by the Cosmetic Ingredient Review (CIR) is not available. However, Polyhydroxystearic Acid, a constituent, has been deemed safe by CIR in cosmetics, provided it is formulated to be non-irritating and non-sensitizing, with reported concentrations reaching up to 14.2% in specific applications like lipsticks. For the broader category of Glycerin Ethoxylates (which includes 'Glycereth-17'), CIR has reviewed the family, but for certain members (e.g., Glycereth-26 at 6% in leave-on products), further Human Repeated Insult Patch Test (HRIPT) data was requested.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Insufficient Data

While demonstrating valuable functional properties for emulsion stability and skin conditioning in formulations, a definitive safety and efficacy rating for GLYCERETH-17 POLYHYDROXYSTEARATE is limited by insufficient specific data.


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