Polyethylene Glycol (PEG)
Humectant, Solvent, Emulsifier, Surfactant
Widely used and generally considered safe in cosmetics when properly manufactured. The primary concern is that PEGs are produced through ethoxylation and may contain trace impurities such as ethylene oxide and 1,4-dioxane if not adequately purified. Skin penetration also increases as molecular weight decreases and when applied to damaged skin.
Why Oh Daisey rates it this way
Widely used and generally considered safe in cosmetics when properly manufactured. The primary concern is that PEGs are produced through ethoxylation and may contain trace impurities such as ethylene oxide and 1,4-dioxane if not adequately purified. Skin penetration also increases as molecular weight decreases and when applied to damaged skin.
What it does
Improves texture, retains moisture, dissolves ingredients, and helps oil and water mix.
How to read this rating
This rating reflects the Oh Daisey ingredient standard and the evidence currently available for cosmetic use. Product safety can also depend on concentration, exposure route, formulation, manufacturing quality, and individual sensitivity.