Emulsifier

PEG-9 Avocadoate

INCI: PEG-9 AVOCADOATE

Reviewed by Kate · Last updated 2 Jun 2026

A plant-derived emulsifier that helps bind water and oil in skincare formulas

Best For Skin Types

All

Addresses

Hydration, Barrier repair

Usage Frequency

Daily

What Is PEG-9 Avocadoate?

PEG-9 Avocadoate is a polyethylene glycol (PEG) derivative of avocado oil. It is created by chemically modifying avocado oil to make it water-soluble, which allows it to function as an emulsifier in skincare products. This ingredient bridges the gap between water-based and oil-based components in formulations, helping them blend smoothly and remain stable.

In skincare products, PEG-9 Avocadoate works to create uniform textures and prevent separation of incompatible ingredients. Its plant-derived origin appeals to formulators seeking naturally-sourced alternatives to synthetic emulsifiers, though the final ingredient is still chemically processed.

How It Works

PEG-9 Avocadoate is a surfactant, meaning it has a molecular structure with both water-loving and oil-loving regions. This dual nature allows it to position itself at the boundary between oil and water phases in a formulation, preventing them from separating.

In skincare products, it enables formulators to combine beneficial oils (such as botanical extracts or conditioning agents) with water-based actives in a single, stable product. This helps ensure that all ingredients remain evenly distributed and accessible to the skin.

Clinical Evidence & References

Direct clinical studies on PEG-9 Avocadoate alone are limited in published literature. Evidence for its safety and efficacy is largely derived from its regulatory approval in cosmetics and its long history of use in skincare formulations.

As a class, PEG-based emulsifiers have been extensively studied and are generally recognised as safe in cosmetic concentrations. The avocado oil component may contribute minor conditioning benefits, though the PEGylation process alters its properties significantly.

How to Use

PEG-9 Avocadoate is a processing ingredient, not an active one, so its benefits are realised through the overall stability and texture of the product it is used in. Simply use your skincare product as formulated. There is no need to adjust frequency or application based on this ingredient alone; follow the guidance on the product label.

Safety & Precautions

PEG-9 Avocadoate is generally well-tolerated and approved for use in cosmetics across major regulatory bodies. Some individuals with PEG sensitivity may experience irritation, though this is uncommon.

Frequently Asked Questions

From the Clinic

Not sure what your skin actually needs?

Two minutes, a few questions, and we’ll point you at what matters — no guesswork.

Take the skin quiz

Learn More About Skincare Ingredients

Explore our comprehensive ingredient glossary to understand what's in your products.

Browse All Ingredients

Authorised Stockist

Official UK retailer

Tracked Delivery

Free UK shipping over £50

5 Star Rating

Trusted by thousands

Expert Advice

Free consultations