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POLYGLYCERYL-3 ISOSTEARATE.

Valuable CAS 127512-63-4 / SURFACTANT - EMULSIFYING

Polyglyceryl-3 Isostearate is a versatile nonionic emulsifier derived from glycerin and isostearic acid, crucial for stabilizing oil and water-based cosmetic formulations, especially water-in-oil emulsions. Beyond its role in blending immiscible phases, it also functions as a skin conditioning agent, enhancing product texture and delivering emollient benefits to the skin.

Summary

Emulsifying Emollient Surfactant Skin conditioning Viscosity enhancement Pigment dispersing

Science

Mechanism of Action

This ingredient operates by significantly reducing the surface tension between oil and water components, thereby facilitating the creation and maintenance of stable emulsions. On the skin, it forms a protective, moisture-retaining barrier, which helps to soften and smooth the skin's surface, enhancing overall hydration and texture. Its surfactant properties also contribute to effective pigment dispersion in color cosmetics and aid in cleansing formulations by helping to lift dirt and impurities.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Information regarding the 'dusting' of Polyglyceryl-3 Isostearate is not available in the provided research data.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Polyglyceryl-3 Isostearate exhibits excellent thermostability and resistance to acidic environments. It demonstrates high tolerance to electrolytes and a wide array of active ingredients, making it a robust choice for diverse formulations, including those employing cold-process methods.

Synergies

  • Electrolytes
  • Wide range of active ingredients (e.g., antioxidants)

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that polyglyceryl fatty acid esters, including Polyglyceryl-3 Isostearate, are safe for cosmetic use when formulated to be non-irritating. While it is generally recognized as safe and complies with major cosmetic regulations worldwide, some individuals may experience sensitivities, hence patch testing is recommended. Suppliers typically suggest usage concentrations for emulsification ranging from 1% to 3%, or 4% to 6% when integrated into the oil phase.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity High

Our Assessment

Verdict

Valuable

Polyglyceryl-3 Isostearate is a valuable multi-functional ingredient, offering robust emulsification, emollience, and texture enhancement, though its high comedogenicity indicates it may be less suitable for oily or acne-prone skin types.

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