PEG-8

PEG-8 is a synthetic polymer that functions as a humectant, solvent, and emulsifier in cosmetic products. As a humectant, it helps to attract and retain moisture in the skin, contributing to hydration. It can also help dissolve other ingredients and stabilize formulations.

BenefitMinimal 1 / 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.

RiskLow 1 / 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

• Attracts and retains moisture

Things to watch

• May cause mild irritation in very sensitive skin

Products with PEG-8

Browse all products →

Frequently asked questions

What is PEG-8 used for in skincare?

PEG-8 is primarily used in skincare as a humectant, meaning it helps to draw moisture from the air into the skin, keeping it hydrated. It also acts as a solvent for other ingredients and helps to stabilize product formulations.