Polyglyceryl-10 Nonaisostearate

What is Polyglyceryl-10 Nonaisostearate?

Polyglyceryl-10 Nonaisostearate is a non-ionic surfactant formed by esterifying polyglycerol-10, a polymer of glycerol, with nine molecules of isostearic acid, a branched-chain fatty acid typically sourced from vegetable oils. Commonly used in rinse-off and leave-on skincare products like cleansers, makeup removers, and lotions, it acts as an emulsifier to blend oil and water phases for stable formulations. It also serves as a solubilizer for lipophilic ingredients such as fragrances and oils, and contributes to skin conditioning by forming a lightweight film that enhances product spreadability and texture without greasiness. Its branched structure provides good solubility and mildness, making it suitable for sensitive formulations.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Supports skin softness and smoothness through conditioning properties.

Stabilizes emulsions for consistent product performance.

Facilitates gentle cleansing without stripping natural oils.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with dry skin seeking added softness.
Those with rare allergies to polyglycerol esters.
People with sensitive skin needing mild emulsifiers.
People sensitive to fatty acid derivatives.
Users of cleansers and lotions for improved texture.
Individuals preferring mineral oil-free alternatives.

Safety Notes

  • Rated low hazard by safety assessments, with minimal irritation potential.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about Polyglyceryl-10 Nonaisostearate

What does Polyglyceryl-10 Nonaisostearate do in skincare?

It emulsifies oil and water, conditions skin, and solubilizes fragrances for stable, smooth formulas.

Is it safe for sensitive skin?

Yes, it has low irritation potential and is suitable for sensitive formulations.

Does it clog pores?

No, it carries a non-comedogenic rating and supports clear skin.