Ingredient review

Bis-PEG/PPG-15/5 Dimethicone

INCI: BIS-PEG/PPG-15/5 DIMETHICONE

A gentle silicone emulsifier that helps products spread smoothly and feel silky without clogging pores.

beautyskincareemulsifier

In plain English

This is a silicone ingredient that acts like a bridge between water and oil in your skincare or makeup. It helps the product mix evenly, spread easily on your skin, and leave a soft, non-sticky finish. It's often used in creams, sunscreens, and foundations to improve texture and wear.

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-15/5 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-15/5 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 both water-loving (PEG/PPG) and oil-loving (dimethicone) parts, making it an effective emulsifier and skin feel enhancer.

How it works

It reduces surface tension between water and oil phases in a formula, allowing them to blend into a stable cream or lotion. On skin, it forms a thin, breathable film that feels silky and helps other ingredients spread evenly.

Pros

Excellent spreadability

Helps creams and sunscreens glide on smoothly without tugging, making application more pleasant and even.

Non-comedogenic

Unlikely to clog pores, so it's generally safe for acne-prone skin when used in moderate amounts.

Cons and cautions

Silicone-based

Some people avoid silicones due to personal preference or concerns about environmental persistence, though it is considered safe for skin.

Can feel heavy on oily skin

In high concentrations, it may leave a slightly slick or heavy feel that some with very oily skin dislike.

Best for

  • Anyone looking for a smooth, non-greasy moisturizer or makeup base
  • People with normal to dry skin who enjoy silicone textures

Use caution if

  • Those who prefer silicone-free or minimalist ingredient lists
  • Individuals with very oily skin who find silicones too heavy

Usage tips

Apply to damp skin for easier spreading and a more even finish.
Layer with water-based serums before using silicone-containing moisturizers to avoid pilling.

Safety summary

Bis-PEG/PPG-15/5 Dimethicone is considered safe for cosmetic use with low irritation and comedogenic potential. It is well-tolerated by most skin types, though those with silicone sensitivities may prefer alternatives.

Research notes

Safety assessments by the Cosmetic Ingredient Review (CIR) panel have found PEG/PPG dimethicone copolymers to be safe in cosmetics at current usage levels. Studies show low skin irritation and sensitization potential.

Common label clues

Typical concentration
1% to 5%
Regulatory status
Approved for use in cosmetics globally, including by the EU CosIng database and US FDA (as a cosmetic ingredient). No known restrictions at typical use levels.
Common uses
Moisturizers, Sunscreens, Foundations, Serums, Hair conditioners
Environmental note
Silicones like dimethicone derivatives can persist in the environment, but this modified version may have improved biodegradability compared to unmodified dimethicone.

Good to know

  • This ingredient is often used in 'silicone-based' primers to create a smooth canvas for makeup.
  • It is considered biodegradable in some forms, but environmental impact varies by formulation.

Common questions

What is Bis-PEG/PPG-15/5 Dimethicone in beauty products?

This is a silicone ingredient that acts like a bridge between water and oil in your skincare or makeup. It helps the product mix evenly, spread easily on your skin, and leave a soft, non-sticky finish. It's often used in creams, sunscreens, and foundations to improve texture and wear.

What does Bis-PEG/PPG-15/5 Dimethicone do in a beauty product?

It reduces surface tension between water and oil phases in a formula, allowing them to blend into a stable cream or lotion. On skin, it forms a thin, breathable film that feels silky and helps other ingredients spread evenly.

Is Bis-PEG/PPG-15/5 Dimethicone safe for most people?

Bis-PEG/PPG-15/5 Dimethicone is considered safe for cosmetic use with low irritation and comedogenic potential. It is well-tolerated by most skin types, though those with silicone sensitivities may prefer alternatives.

Who should be careful with Bis-PEG/PPG-15/5 Dimethicone?

Those who prefer silicone-free or minimalist ingredient lists Individuals with very oily skin who find silicones too heavy

Research sources

Cosmetic Ingredient Review (CIR) Safety AssessmentOpenEU CosIng DatabaseOpenPubMed - Silicone Safety in CosmeticsOpen

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.