Polyglyceryl-10 Pentaisostearate

What is Polyglyceryl-10 Pentaisostearate?

Polyglyceryl-10 Pentaisostearate is a cosmetic ingredient formed by esterifying polyglycerol-10, a chain of ten glycerol molecules, with pentaisostearic acid, a branched-chain fatty acid typically sourced from vegetable oils. This structure gives it hydrophilic and lipophilic properties, making it ideal for use in oil-in-water emulsions like creams, lotions, and cleansers. It functions primarily as an emulsifying agent by creating a stable film at the oil-water interface, preventing separation and ensuring uniform texture. As a surfactant, it reduces surface tension to aid in gentle cleansing and dispersion. Its emollient role involves depositing a lightweight layer that smooths skin surface and minimizes water loss. Commonly found in makeup removers, moisturizers, and hair care, it supports formulation stability without greasiness, appealing for everyday skincare products.

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

Softens and smooths the skin's surface for a comfortable feel.

Stabilizes emulsions to maintain product consistency over time.

Provides mild cleansing action suitable for sensitive formulations.

Who It's For

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

Who May Benefit Who Should Avoid
People with dry skin seeking lightweight moisture retention.
Those with rare allergies to polyglycerol esters.
Individuals preferring gentle, non-drying cleansers.
People sensitive to fatty acid derivatives.
Users of lotions and creams wanting stable, smooth textures.
Individuals avoiding complex surfactants in minimalistic routines.

Safety Notes

  • Considered low hazard with minimal irritation potential in cosmetic use.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about Polyglyceryl-10 Pentaisostearate

What is Polyglyceryl-10 Pentaisostearate used for?

It serves as an emollient to soften skin, emulsifier for stable blends, and surfactant for gentle cleansing in creams and lotions.

Is it safe for sensitive skin?

It has low irritation potential and is suitable for many sensitive skin types due to its mild profile.

Does it cause breakouts?

Rated non-comedogenic, making it unlikely to contribute to clogged pores.