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Hydroxyethylcellulose

What Hydroxyethylcellulose is & what it does

A plant-derived thickener that builds smooth, clear gels and stabilizes emulsions. It gives a non-greasy, cushiony feel.

What is Hydroxyethylcellulose and what does it do in sunscreen?

Hydroxyethylcellulose is a thickener made from cellulose, the fiber found in plants. It builds smooth, clear gels and helps hold an emulsion together so a sunscreen stays evenly mixed and spreads well. It gives a non-greasy, cushiony feel and adjusts how thick or fluid the product is.

Is Hydroxyethylcellulose a thickener or a gelling agent?

Both, really. Its job is to control texture: it thickens watery formulas and can turn them into a clear gel, while also stabilizing creams and lotions. It does not add scent, color, or sun protection; it is there purely for feel and stability.

Is Hydroxyethylcellulose safe?

Yes. It is a widely used, well-tolerated texture ingredient considered safe in cosmetics. It works on the surface to thicken and stabilize the formula rather than penetrating the skin, and irritation is uncommon. It is suitable for sensitive and acne-prone skin.

Does Hydroxyethylcellulose clog pores?

No. It is a water-soluble, plant-derived thickener, not a heavy oil or wax, so it is considered non-comedogenic. It is used in small amounts to control texture and is an unlikely cause of breakouts. If you are clogging, look to the richer emollients in a formula instead.

Is Hydroxyethylcellulose natural?

It is plant-derived but modified. It starts from cellulose, the natural fiber in plants, which is then chemically tweaked to make it dissolve well in water. So it is naturally sourced but processed, a common middle ground for cosmetic thickeners.

Sunscreens with Hydroxyethylcellulose

We rate 169 sunscreens that contain it, showing the top 10 by overall score:

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