Polyglyceryl-3 Isostearate

This ingredient is a versatile compound that acts as both an emulsifier and an emollient in cosmetic formulations. As an emulsifier, it helps to blend oil and water-based ingredients, creating stable and smooth product textures. As an emollient, it contributes to skin conditioning, leaving the skin feeling soft and supple. It is often used in a variety of skincare and makeup products.

BenefitModerate 1.5 / 4

Hydration i1 / 4

Whether the ingredient helps increase the skin’s water content — humectants that attract water, ingredients that reduce water loss, or ones that make skin feel less dry.

Barrier support i0.5 / 4

Whether it supports the skin barrier — restoring lipids, reducing water loss, aiding barrier repair, or strengthening the skin’s protective function.

RiskLow 0.5 / 4

Irritation i0.5 / 4

Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

• Improves product texture
• Conditions skin
• Stabilizes emulsions

Things to watch

• Low risk of irritation

Products with Polyglyceryl-3 Isostearate

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Frequently asked questions

What is Polyglyceryl-3 Isostearate used for in cosmetics?

It primarily functions as an emulsifier, helping oil and water to mix, and also as an emollient to soften and smooth the skin.

Is Polyglyceryl-3 Isostearate safe for sensitive skin?

It is generally considered mild and well-tolerated, making it suitable for most skin types, including sensitive skin.