Silicone

PEG-12 Dimethicone/PPG-20 Crosspolymer

INCI: PEG-12 DIMETHICONE/PPG-20 CROSSPOLYMER

Reviewed by Kate · Last updated 2 Jun 2026

Also known as: Peg-12 Dimethicone/ppg-20 Crosspolymer

A silicone-based conditioning agent that smooths and softens skin texture

Best For Skin Types

All, Oily, Combination

Addresses

Dryness, Uneven texture

Usage Frequency

Daily

What Is PEG-12 Dimethicone/PPG-20 Crosspolymer?

PEG-12 Dimethicone/PPG-20 Crosspolymer is a synthetic silicone-based polymer commonly used in skincare formulations. It is created by cross-linking silicone and polyether components, resulting in a lightweight ingredient designed to improve the texture and feel of a product on the skin.

This ingredient functions primarily as a conditioning and smoothing agent. It spreads easily across the skin surface and is intended to create a soft, refined finish without leaving a heavy or occlusive residue.

How It Works

This crosspolymer works by forming a thin, uniform layer across the skin's surface. Its molecular structure allows it to spread and adhere without being absorbed, instead sitting on the skin to create a smoothing effect.

The ingredient's silicone backbone makes it hydrophobic (water-repellent), which means it resists washing off quickly and can help support the skin's moisture barrier by reducing transepidermal water loss in the short term.

Clinical Evidence & References

Research specifically investigating this particular crosspolymer in skincare is limited. The ingredient is used primarily for textural and sensory benefits rather than as an active treatment compound. Its safety profile is generally well-established in cosmetic use.

Broader evidence on silicone-based conditioning agents suggests they are well-tolerated and effective for temporary smoothing and softening effects, though they do not address underlying skin concerns in the way that active ingredients might.

How to Use

This ingredient is typically incorporated into formulations by manufacturers rather than used as a standalone product. When selecting products containing it, consider how it fits with your broader skincare routine. Because it sits on the skin surface, it works well in primers, serums, and moisturisers where a smooth, refined finish is desired.

Safety & Precautions

Generally well-tolerated and considered safe for cosmetic use across all skin types. Silicone-based ingredients are non-irritating for the majority of users, though individuals with silicone sensitivity may wish to patch test first.

Frequently Asked Questions

From the Clinic

Not sure what your skin actually needs?

Two minutes, a few questions, and we’ll point you at what matters — no guesswork.

Take the skin quiz

Learn More About Skincare Ingredients

Explore our comprehensive ingredient glossary to understand what's in your products.

Browse All Ingredients

Authorised Stockist

Official UK retailer

Tracked Delivery

Free UK shipping over £50

5 Star Rating

Trusted by thousands

Expert Advice

Free consultations