Ingredient review
Bis-Phenylpropyl Dimethicone
INCI: BIS-PHENYLPROPYL DIMETHICONE
A gentle silicone that gives products a silky feel and helps them glide on smoothly without clogging pores.
In plain English
Bis-Phenylpropyl Dimethicone is a type of silicone used in cosmetics to make products feel silky and spread easily. It sits on top of the skin, creating a smooth, non-greasy layer that helps other ingredients stay put. Unlike some silicones, it's considered very gentle and unlikely to cause breakouts or irritation.
Review score
Safety, usefulness, and evidence
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
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Bis-Phenylpropyl 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.
- Step 1Start with the score, then check the irritation and clogging risk before judging Bis-Phenylpropyl Dimethicone.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- 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
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A synthetic silicone polymer with phenyl groups attached, which gives it a unique ability to blend well with both oils and other silicones. It's designed to improve the texture and performance of skincare and makeup products.
How it works
When applied, it forms a thin, flexible film on the skin's surface. This film reduces friction, making the product feel silky, and helps other ingredients (like sunscreen filters or pigments) spread evenly and stay in place longer. It also helps reduce water loss from the skin without feeling heavy.
Pros
Silky texture
Gives products a luxurious, silky feel that makes application smooth and pleasant.
Non-comedogenic
Unlikely to clog pores, making it suitable for most skin types, including acne-prone skin.
Cons and cautions
Silicone sensitivity
A small number of people may find silicones feel heavy or cause a temporary 'slippery' sensation they dislike.
Not silicone-free
Some consumers prefer to avoid silicones for environmental or personal reasons, even though this ingredient is generally safe.
Best for
- Anyone wanting a smooth, primer-like finish
- People with normal to dry skin looking for a non-greasy feel
Use caution if
- Those who strictly avoid silicones in their routine
- Very oily skin types who prefer matte, silicone-free textures
Usage tips
Safety summary
Bis-Phenylpropyl Dimethicone is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, and no significant safety concerns have been raised by regulatory bodies.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel have found silicones like this one to be safe as used. Studies show very low skin penetration and no evidence of toxicity or sensitization.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics globally, including by the FDA (USA) and EU CosIng database, with no known restrictions.
- Common uses
- Primers, Sunscreens, Moisturizers, Foundations
- Environmental note
- Like many silicones, it is not biodegradable, but it is not classified as bioaccumulative. Some brands are moving toward biodegradable alternatives.
Good to know
- This silicone is often used in 'silicone-based' primers to fill in fine lines and pores temporarily.
- It is considered a 'high refractive index' silicone, which can give skin a subtle glow.
Common questions
What is Bis-Phenylpropyl Dimethicone in beauty products?
Bis-Phenylpropyl Dimethicone is a type of silicone used in cosmetics to make products feel silky and spread easily. It sits on top of the skin, creating a smooth, non-greasy layer that helps other ingredients stay put. Unlike some silicones, it's considered very gentle and unlikely to cause breakouts or irritation.
What does Bis-Phenylpropyl Dimethicone do in a beauty product?
When applied, it forms a thin, flexible film on the skin's surface. This film reduces friction, making the product feel silky, and helps other ingredients (like sunscreen filters or pigments) spread evenly and stay in place longer. It also helps reduce water loss from the skin without feeling heavy.
Is Bis-Phenylpropyl Dimethicone safe for most people?
Bis-Phenylpropyl Dimethicone is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, and no significant safety concerns have been raised by regulatory bodies.
Who should be careful with Bis-Phenylpropyl Dimethicone?
Those who strictly avoid silicones in their routine Very oily skin types who prefer matte, silicone-free textures
Research sources
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.