PEG-8

PEG-8 is a low-molecular-weight polyethylene glycol used as a water-soluble humectant and solvent in personal care. It's chosen to improve moisture retention, boost spreadability, and aid ingredient delivery in lightweight formulas.
Like this ingredient?

Snapshot

Overview
A lightweight humectant that helps skin feel hydrated, not heavy.
Category
Hydration
Type
Humectant

Ratings

Overall Rating

Great

Comedogenic Risk

None

Not typically evaluated for comedogenicity — no standardized rating available.

Is PEG-8 a Good Ingredient?

Earns a Great rating as a well-studied, water-soluble humectant that consistently improves hydration, with excellent stability and a low irritation profile across a wide pH range, distinguishing it from a merely good humectant.

Skin Benefits

Helps skin feel comfortably hydrated and refreshed without heaviness. Aids in evenly dispersing other components for consistent performance.

Uses in Skincare & Cosmetics

Common in toners, essences, mists, and gel moisturizers for a light, hydrating touch; also used in gentle cleansers to support a smooth, fluid texture.

Safety

Generally considered low risk for irritation and suitable for most skin types. Rare sensitivity is possible, particularly on broken or highly reactive skin; impurities are typically minimized through modern purification.