PEG/PPG-20/20 Dimethicone

What is PEG/PPG-20/20 Dimethicone?

PEG/PPG-20/20 Dimethicone is a synthetic silicone derivative, a copolymer combining dimethicone—a polydimethylsiloxane—with polyethylene glycol (PEG-20) and polypropylene glycol (PPG-20) chains attached. Produced through polymerization of silica-derived siloxanes and alkylene oxides, it appears as a clear to pale yellow viscous liquid. Primarily used in hair care products like shampoos and conditioners, as well as skin cleansers, moisturizers, and sunscreens. It functions by lowering surface tension, enabling easy spreading and wetting of surfaces. As an emulsifier, it forms stable oil-in-water or water-in-oil mixtures by creating a protective film at interfaces. Its surfactant properties aid in foaming and cleansing, while the silicone backbone imparts a lightweight, non-greasy conditioning feel, improving product texture and rinse-off ease without 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.
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

Improves blend of oil and water for consistent lotion and cream textures.

Facilitates gentle cleansing and foaming in washes and shampoos.

Delivers smooth, silky application with quick absorption on skin and hair.

Who It's For

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

Who May Benefit Who Should Avoid
Users of emulsified products like moisturizers seeking stable formulas.
Those sensitive to silicone polymers.
Individuals wanting conditioning effects in hair care without heaviness.
People concerned about PEG-related impurities.
People preferring spreadable, non-sticky cleansers.
Individuals preferring silicone-free formulations.

Safety Notes

  • Cosmetic reviews affirm safety for use in rinse-off and leave-on products at typical levels.
  • Non-comedogenic, unlikely to clog pores based on low ratings.

Frequently Asked Questions about PEG/PPG-20/20 Dimethicone

What does PEG/PPG-20/20 Dimethicone do in products?

It emulsifies ingredients for stable textures and acts as a surfactant for better spreading and cleansing.

Is it safe for daily use?

Recognized safe by cosmetic safety panels in typical concentrations for skin and hair products.

Does it cause acne?

Non-comedogenic rating of zero indicates low risk of pore clogging.