Dimethicone PEG-7 Phosphate

PEG / Ethoxylated

Benefits

Soothing

What is Dimethicone PEG-7 Phosphate?

Dimethicone PEG-7 Phosphate is a synthetic compound created by modifying dimethicone, a silicone polymer made from dimethylsiloxane units, with a polyethylene glycol chain of seven units and phosphate groups. This modification imparts water-soluble and anionic properties, distinguishing it from hydrophobic plain dimethicones. Primarily used in rinse-off cleansing products like shampoos, body washes, and facial cleansers, as well as leave-on emulsions such as lotions and conditioners. It functions by reducing surface tension at the oil-water interface, enabling effective dispersion of oils and dirt for removal during rinsing. The phosphate group enhances its ability to form stable micelles that encapsulate impurities, while the PEG chain improves solubility in aqueous formulations. Its silicone backbone provides a smooth, non-tacky feel, contributing to product sensory appeal without heavy residue.

Comedogenic Rating 0/5 Low risk of clogging pores

EWG Safety Rating 3 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Surfactant

Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.

Cleansing agent

Removes dirt, oil, and impurities by lowering surface tension and forming micelles, enabling soils to be lifted and rinsed away from skin, hair, or teeth.

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

Gentle cleansing action removes oils and impurities effectively.

Stabilizes emulsions for consistent lotion and cream textures.

Provides a soothing sensation during use in washes and conditioners.

Who It's For

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

Who May Benefit	Who Should Avoid
Individuals seeking mild surfactants in daily cleansers.	People sensitive to PEG-modified compounds.
Users of emulsified products like moisturizers for better blendability.	Individuals concerned about potential trace impurities in ethoxylated ingredients.
Those preferring non-comedogenic ingredients in formulations.	Users preferring silicone-free or fully natural product lines.

Safety Notes

Rated moderate concern overall by environmental health databases.
Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about Dimethicone PEG-7 Phosphate

What does Dimethicone PEG-7 Phosphate do in products?

It acts as a surfactant for cleansing, emulsifier for mixing phases, and adds smoothness.

Is it safe for sensitive skin?

Generally low irritation potential based on cosmetic safety reviews.

Does it clog pores?

Rated non-comedogenic with a low likelihood of pore blockage.