Ingredient review

Bis-PEG-12 Dimethicone

INCI: BIS-PEG-12 DIMETHICONE

A gentle silicone emulsifier that improves product texture and feel without common silicone downsides.

beautyskincareemulsifier

In plain English

Bis-PEG-12 Dimethicone is a silicone-based ingredient that helps water and oil mix together in your skincare and makeup. It also leaves a smooth, silky feel on your skin without being heavy or greasy. Unlike some older silicones, it's designed to be more water-friendly and less likely to build up on the skin.

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-12 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-12 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 polymer with PEG (polyethylene glycol) chains attached. This makes it water-dispersible, so it can act as an emulsifier and skin conditioner in water-based formulas.

How it works

Its PEG chains allow it to dissolve in water, while the silicone backbone provides a smooth, spreadable film. This helps blend oil and water phases in a product, and leaves a lightweight, non-sticky finish on the skin.

Pros

Lightweight feel

Creates a silky, non-greasy finish that many people find pleasant under makeup or alone.

Good emulsifier

Helps keep water and oil mixed in a product, improving stability and texture without heavy waxes.

Cons and cautions

Silicone concerns

Some consumers prefer to avoid silicones due to environmental or personal preference, even though this type is less likely to build up.

PEG content

PEG compounds can be controversial; though safe in approved concentrations, some people choose to avoid them.

Best for

  • Anyone who wants a smooth, silky finish from their moisturizer or makeup
  • People with normal to dry skin who enjoy silicone-based textures

Use caution if

  • Those strictly avoiding silicones or PEG compounds
  • Individuals with known sensitivity to PEG derivatives (rare)

Usage tips

Use products with this ingredient after water-based serums for best layering.
It works well in primers to create a smooth base for foundation.
If you have very oily skin, test a small area first to see how it feels.

Safety summary

Bis-PEG-12 Dimethicone has a low irritation and comedogenic risk. It is considered safe for most skin types when used as directed. PEG components are safe at cosmetic levels, though some consumers avoid them for personal reasons.

Research notes

Safety assessments by the Cosmetic Ingredient Review (CIR) panel have found PEG-modified silicones to be safe in cosmetics. Studies show low skin irritation and sensitization potential.

Common label clues

Typical concentration
1% to 5%
Regulatory status
Approved for use in cosmetics in the US, EU, and many other regions. Generally recognized as safe at typical concentrations.
Common uses
Moisturizers, Serums, Foundations, Sunscreens, Primers
Environmental note
Silicones can persist in the environment, but water-dispersible types like this one are designed to be more biodegradable than traditional dimethicone.

Good to know

  • This ingredient is often found in 'silicone-free' claims because it is water-dispersible and less occlusive than dimethicone.
  • It is considered safe by major regulatory bodies at typical use levels.

Common questions

What is Bis-PEG-12 Dimethicone in beauty products?

Bis-PEG-12 Dimethicone is a silicone-based ingredient that helps water and oil mix together in your skincare and makeup. It also leaves a smooth, silky feel on your skin without being heavy or greasy. Unlike some older silicones, it's designed to be more water-friendly and less likely to build up on the skin.

What does Bis-PEG-12 Dimethicone do in a beauty product?

Its PEG chains allow it to dissolve in water, while the silicone backbone provides a smooth, spreadable film. This helps blend oil and water phases in a product, and leaves a lightweight, non-sticky finish on the skin.

Is Bis-PEG-12 Dimethicone safe for most people?

Bis-PEG-12 Dimethicone has a low irritation and comedogenic risk. It is considered safe for most skin types when used as directed. PEG components are safe at cosmetic levels, though some consumers avoid them for personal reasons.

Who should be careful with Bis-PEG-12 Dimethicone?

Those strictly avoiding silicones or PEG compounds Individuals with known sensitivity to PEG derivatives (rare)

Research sources

Cosmetic Ingredient Review (CIR) – Safety Assessment of PEGylated SiliconesOpenPubChem – Bis-PEG-12 DimethiconeOpenEWG Skin Deep – Bis-PEG-12 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.