Emulsifier

Octyldodecyl Xyloside

INCI: OCTYLDODECYL XYLOSIDE

Reviewed by Emma · Last updated 14 Aug 2026

A gentle emulsifier that helps blend oil and water in skincare formulations

Best For Skin Types

All

Usage Frequency

Daily

What Is Octyldodecyl Xyloside?

Octyldodecyl xyloside is a synthetic emulsifier and mild surfactant derived from plant-based xylose sugars combined with fatty alcohols. It functions primarily to stabilise formulations by allowing water and oil-based ingredients to mix evenly, preventing separation.

This ingredient appears in roughly 0.1% of skincare products, suggesting it remains relatively uncommon. It is used in small concentrations to support formula stability rather than to deliver a direct skincare benefit.

How It Works

Octyldodecyl xyloside is a surfactant, meaning it has a molecular structure with both water-attracting and oil-attracting regions. This allows it to position itself at the interface between oil and water phases in a formula, keeping them blended together.

Unlike some harsher surfactants, this ingredient is designed to be relatively gentle on skin because it is used at low concentrations and has a mild cleansing profile. Its primary role is behind-the-scenes formula support rather than direct action on skin.

Clinical Evidence & References

Published research specifically investigating octyldodecyl xyloside in skincare is limited. What is known comes largely from safety and compatibility data gathered during formulation testing and cosmetic ingredient databases.

The ingredient has a good safety profile when used at typical concentrations in leave-on skincare products. However, direct clinical evidence for specific skin benefits is not readily available, and this ingredient should be viewed as a formulation tool rather than an active therapeutic component.

How to Use

Octyldodecyl xyloside works best when part of a well-formulated product rather than used in isolation. Look for it in serums, moisturisers, and emulsions where you want ingredients to remain evenly distributed. Since it is used at low levels, the presence of this ingredient alone does not define a product's performance; focus on the active ingredients alongside it.

Safety & Precautions

Octyldodecyl xyloside is generally well-tolerated and has a low irritation potential. It is not known to cause photosensitivity or significant contact sensitisation at typical use levels.

Frequently Asked Questions

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