Emulsifier

PEG-8 Laurate

INCI: PEG-8 LAURATE

Reviewed by Rosie · Last updated 14 Aug 2026

Also known as: Peg-8 Laurate

A surfactant that may support skin's natural defences against acne-causing bacteria

Best For Skin Types

All, Oily, Acne-prone

Addresses

Acne, Oil control

Usage Frequency

Daily

What Is PEG-8 Laurate?

PEG-8 Laurate is a polyethylene glycol (PEG) derived surfactant and emulsifying agent commonly used in skincare formulations. It functions primarily to stabilise oil and water-based ingredients, allowing them to blend smoothly into a uniform product texture.

Beyond its emulsifying role, emerging research suggests PEG-8 Laurate may interact with the skin's microbiome in ways that could support natural bacterial balance, particularly in relation to acne management.

How It Works

As a surfactant, PEG-8 Laurate reduces surface tension between oil and water molecules, allowing them to mix evenly. This stabilises formulations and ensures consistent product performance across shelf life.

At the microbiome level, preliminary research indicates PEG-8 Laurate may selectively support the growth of beneficial skin bacteria such as Staphylococcus epidermidis. These bacteria can, in turn, produce compounds that inhibit the growth of Cutibacterium acnes—a bacterium involved in acne formation. The mechanism appears to involve fermentation processes that generate antimicrobial activity on the skin.

Clinical Evidence & References

Laboratory and animal studies show promising signals: PEG-8 Laurate appears to enhance the anti-acne activity of beneficial skin bacteria and may reduce the growth of acne-causing bacteria. In mouse models, this effect was observed both in vitro and when bacteria were introduced intradermally.

However, human clinical trials remain limited. The evidence is primarily derived from controlled laboratory settings and animal studies, so translating these findings to real-world skincare results requires further investigation. More rigorous human studies would help clarify whether these microbiome effects occur reliably in living skin.

How to Use

PEG-8 Laurate is typically used as a formulation ingredient at low concentrations (often well under 1%), so there are no specific application instructions for consumers. It works behind the scenes to stabilise and homogenise your skincare product. Use the product as directed by the manufacturer.

Safety & Precautions

PEG-8 Laurate is generally recognised as well-tolerated in cosmetic formulations. Those with sensitivity to surfactants or PEG compounds should patch-test, particularly if prone to irritation or barrier sensitivity.

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