Ingredient review

Bis-PEG/PPG-20/20 Dimethicone

INCI: BIS-PEG/PPG-20/20 DIMETHICONE

A gentle silicone emulsifier that improves texture and spreadability without clogging pores.

beautyskincareemulsifier

In plain English

This is a silicone-based ingredient that acts like a bridge between water and oil in a product. It helps create smooth, even creams and lotions that spread easily on the skin and feel silky, not greasy. Because it's a silicone, it also leaves a light, breathable film that can help lock in moisture.

Review score

Safety, usefulness, and evidence

4.0Good
4.0/ 5

Potentially useful with some tradeoffs

The evidence base is useful, but some claims depend heavily on the formula.

Risk flags are low for most users, though the finished product can still irritate.

Source
semi synthetic
Evidence
moderate
Irritation
low
Clogging risk
low
How reviews are scored

Quick decision guide

Useful, but context matters

Bis-PEG/PPG-20/20 Dimethicone is generally a lower-concern ingredient when the full formula suits your skin.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Bis-PEG/PPG-20/20 Dimethicone.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.

Score terms in plain English

Irritation risk

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

A modified silicone molecule with both water-loving (PEG/PPG) and oil-loving (dimethicone) parts, making it an effective emulsifier for water-in-oil and oil-in-water formulas.

How it works

It reduces surface tension between water and oil droplets, allowing them to mix into a stable emulsion. Once applied, it forms a thin, flexible film on the skin that feels smooth and helps prevent moisture loss.

Pros

Silky texture

Creates a smooth, velvety feel on the skin that many people find pleasant and non-sticky.

Stable emulsions

Helps prevent creams and lotions from separating, so the product stays consistent from first use to last.

Cons and cautions

Silicone avoidance

Some people choose to avoid silicones for personal or environmental reasons, and this ingredient is a silicone.

Removal difficulty

Products with this ingredient may require a double cleanse (oil-based cleanser followed by water-based) to fully remove.

Best for

  • People with normal to oily skin
  • Those who prefer a silky, non-greasy finish in moisturizers or makeup

Use caution if

  • Individuals who strictly avoid silicones in their routine

Usage tips

Use a gentle cleanser or double cleanse to ensure complete removal at the end of the day.
Layer water-based products before silicone-containing ones for best absorption.

Safety summary

Generally recognized as safe for cosmetic use. Low irritation and comedogenic risk. However, individuals with very sensitive skin or silicone sensitivities should patch test first.

Research notes

Limited independent studies on this specific ingredient, but the broader class of PEG-modified silicones has been reviewed by safety panels and found safe for topical use at low concentrations.

Common label clues

Typical concentration
1% to 5%
Regulatory status
Approved for use in cosmetics in the US, EU, and many other regions. The Cosmetic Ingredient Review (CIR) panel has deemed it safe at typical use levels.
Common uses
Moisturizers, Sunscreens, Foundations, Primers
Environmental note
Silicones like this one are not biodegradable and can accumulate in the environment. Some regions are exploring restrictions on certain silicones.

Good to know

  • Bis-PEG/PPG-20/20 Dimethicone is considered safe by the Cosmetic Ingredient Review (CIR) panel.
  • It is often used in 'water-in-silicone' sunscreens for a lightweight feel.

Common questions

What is Bis-PEG/PPG-20/20 Dimethicone in beauty products?

This is a silicone-based ingredient that acts like a bridge between water and oil in a product. It helps create smooth, even creams and lotions that spread easily on the skin and feel silky, not greasy. Because it's a silicone, it also leaves a light, breathable film that can help lock in moisture.

What does Bis-PEG/PPG-20/20 Dimethicone do in a beauty product?

It reduces surface tension between water and oil droplets, allowing them to mix into a stable emulsion. Once applied, it forms a thin, flexible film on the skin that feels smooth and helps prevent moisture loss.

Is Bis-PEG/PPG-20/20 Dimethicone safe for most people?

Generally recognized as safe for cosmetic use. Low irritation and comedogenic risk. However, individuals with very sensitive skin or silicone sensitivities should patch test first.

Who should be careful with Bis-PEG/PPG-20/20 Dimethicone?

Individuals who strictly avoid silicones in their routine

Research sources

Cosmetic Ingredient Review (CIR) - Safety Assessment of Dimethicone and DerivativesOpenPubChem - Bis-PEG/PPG-20/20 DimethiconeOpenEWG Skin Deep - Bis-PEG/PPG-20/20 DimethiconeOpen

Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.