Polyglyceryl-10 Diisostearate

What is Polyglyceryl-10 Diisostearate?

Polyglyceryl-10 Diisostearate is a non-ionic surfactant created by linking a chain of 10 glycerol molecules with two branches of isostearic acid, a saturated branched fatty acid sourced from vegetable oils such as rapeseed or tall oil. This structure gives it hydrophilic and lipophilic properties, ideal for cosmetic formulations. It appears in oil cleansers, makeup removers, shampoos, and lightweight emulsions like lotions and serums. In products, it functions by decreasing interfacial tension between immiscible oil and water phases, forming stable micelles that encapsulate oils for rinse-off without residue. Its fatty chains deposit a thin emollient layer on skin, mimicking natural sebum to enhance slip and limit transepidermal water loss. As a surfactant, it facilitates dirt and oil removal during cleansing while maintaining mildness due to its high molecular weight and branched structure.

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:

Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.

Benefits

Provides emolliency by softening skin surface and improving product spreadability.

Enables stable emulsions in lotions and cleansers for consistent texture.

Assists gentle cleansing by emulsifying oils without pore clogging.

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 needing lightweight moisture retention.
Those with rare sensitivities to fatty acid esters.
Users of oil-based cleansers seeking easy rinse-off.
Individuals avoiding polyglycerol-derived ingredients.
People preferring non-comedogenic ingredients in daily routines.
People with compromised skin barriers, pending patch test.

Safety Notes

  • Considered low hazard in cosmetic concentrations by safety reviews.
  • Non-comedogenic profile supports use on various skin types.

Frequently Asked Questions about Polyglyceryl-10 Diisostearate

What does Polyglyceryl-10 Diisostearate do in products?

It emulsifies oils in water-based formulas, acts as an emollient for smoothness, and aids cleansing without residue.

Is it suitable for sensitive skin?

Its low irritation potential makes it appropriate for many, though patch testing is advised for sensitivities.

Does it contribute to acne?

Non-comedogenic rating indicates it does not promote pore clogging.