Hydroxyethyl Ethylcellulose

What is Hydroxyethyl Ethylcellulose?

Hydroxyethyl Ethylcellulose is a semisynthetic, water-soluble polymer obtained from cellulose, the structural polysaccharide abundant in plant cell walls like cotton and wood pulp. It features hydroxyethyl and ethyl ether groups grafted onto the cellulose chain, improving its hydration and film-forming abilities. Primarily used in water-based cosmetics such as lotions, gels, serums, and cleansers within the rheology modifiers category, it works by swelling in water to create a viscous, entangled network. This boosts thickness to suspend solids, fortify emulsions against separation, adhere ingredients for cohesion, and deposit sheer films that enhance product spreadability, durability, and sensory qualities without greasiness.

Comedogenic Rating 0/5 Low risk of clogging pores

EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Adhesive

Improves adhesion so the product or film sticks to skin, hair, or nails; helps bind layers together in patches, nail products, and long-wear formulas.

Binder

Helps hold solid ingredients together to form cohesive tablets, compacts, or sticks, improving pressability, integrity, and wear of the finished product.

Emulsion stabilizer

Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.

Film former

Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.

Viscosity controlling agent

Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Binding

Provides cohesion by helping ingredients stick together, improving the strength and integrity of pressed powders, tablets, or solid bars.

Emulsifying agent

Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.

Benefits

Provides smooth, spreadable textures for comfortable use

Maintains emulsion stability to extend product shelf life

Forms flexible films that improve wear and water resistance

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit	Who Should Avoid
People seeking gentle, non-greasy thickeners in daily routines	Those with rare allergies to cellulose derivatives
Individuals wanting stable formulas that resist separation	People avoiding any chemically modified polymers
Users preferring plant-origin ingredients in water-based products	Individuals preferring strictly unmodified natural ingredients

Safety Notes

Considered low hazard with minimal risk of irritation
Non-comedogenic, unlikely to clog pores

Frequently Asked Questions about Hydroxyethyl Ethylcellulose

What is Hydroxyethyl Ethylcellulose?

A modified cellulose polymer from plants that thickens water-based products and stabilizes mixtures.

Is it safe for sensitive skin?

Yes, it has low irritation potential and is widely regarded as safe in cosmetics.

What roles does it play in products?

It controls viscosity, binds ingredients, stabilizes emulsions, and forms films.