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POLYGLYCERYL-10 POLYRICINOLEATE.

Valuable CAS 29894-35-7 / SURFACTANT - EMULSIFYING, VISCOSITY CONTROLLING

Polyglyceryl-10 Polyricinoleate is a versatile, plant-derived emulsifier and skin conditioning agent. It is crucial for creating stable water-in-oil emulsions, particularly those with high water content, ensuring product integrity and a consistent texture. Additionally, it imparts skin-softening benefits.

Summary

Emulsifying Skin-Conditioning Stabilizing Texture Enhancer

Science

Mechanism of Action

This ingredient functions primarily as a potent lipophilic water-in-oil (W/O) emulsifier by significantly reducing the surface tension between immiscible water and oil phases. This action promotes their stable integration, ensuring a uniform and consistent product texture. As a skin conditioning agent, it contributes to overall skin health and hydration, enhancing the sensory experience, feel, and spreadability of topical formulations, potentially supporting the gradual release of active ingredients.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–5%
Optimal

4%

Key findings

  1. 01 At a concentration of 4%, Polyglyceryl-10 Polyricinoleate was shown to effectively stabilize water-in-oil emulsions, achieving a minimal mean droplet size of approximately 5 μm and a high emulsification index nearing 97%.
  2. 02 Studies on the broader polyglycerol polyricinoleate (PGPR) category indicate that 2 wt% maintained complete aqueous phase stability in artificial butter after freeze-thaw cycles.
  3. 03 At 10 wt%, PGPR significantly enhanced physical stability and slowed lipid oxidation in W/O high internal phase emulsions.
  4. 04 When co-formulated with stigmasterol at concentrations between 2% and 3%, PGPR derivatives demonstrated the ability to form robust and stable W/O gel emulsion systems with high water phase ratios, up to 65 wt%.

Transparency

Dusting Analysis

Not commonly dusted

Polyglyceryl-10 Polyricinoleate is primarily a functional ingredient, essential for emulsion stability and texture, rather than an active ingredient whose benefits are dose-dependent on skin interaction. Its effectiveness is tied to its role in formulation mechanics, not typically subject to 'dusting' in the context of active ingredient efficacy.

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

This ingredient maintains stability under typical storage and processing conditions and across a broad pH range. While it exhibits heat tolerance, it is advisable to avoid prolonged exposure to temperatures exceeding 80°C.

Safety

Safety Profile

CIR Status
Insufficient data
Max tested
5%
Sensitization risk Low

While a specific CIR safety assessment for Polyglyceryl-10 Polyricinoleate indicates 'insufficient data,' the broader category of Polyglycerol Polyricinoleate (PGPR, E476) is generally recognized as safe for human consumption by the FDA and permitted in EU cosmetics. A CIR safety assessment for various polyglycerins was in draft as of May 2023, with read-across data from PGPR proposed. Polyglyceryl-3 Polyricinoleate, a closely related variant, is considered non-toxic and non-sensitizing.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Polyglyceryl-10 Polyricinoleate is a valuable ingredient for its robust emulsifying capabilities, especially in creating stable water-in-oil formulations, coupled with its excellent skin compatibility and low risk profile.

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