Ingredient review
Bisphenylhexamethicone
INCI: Bisphenylhexamethicone
A lightweight silicone that improves product texture and leaves a smooth finish without clogging pores.
In plain English
Bisphenylhexamethicone is a type of silicone used in cosmetics to make products feel silky and spread easily. It sits on top of the skin or hair, creating a thin, breathable film that helps lock in moisture and reduces friction. Unlike some heavy silicones, it's lightweight and less likely to cause buildup or greasiness, making it popular in primers, sunscreens, and hair serums.
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
Bisphenylhexamethicone 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 Bisphenylhexamethicone.
- 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 (a type of dimethicone derivative) designed to provide a smooth, velvety feel and improve the application of cosmetic products.
How it works
It forms a thin, flexible film on the skin or hair surface, which reduces water loss (acts as an occlusive) and creates a barrier that helps other ingredients stay in place. Its low surface tension allows it to spread easily, giving a silky, non-tacky finish.
Pros
Lightweight feel
Unlike some heavier silicones, bisphenylhexamethicone provides a silky finish without weighing down skin or hair, making it ideal for daily use.
Improves product spreadability
It helps creams, serums, and sunscreens glide on smoothly, reducing the need to rub vigorously and improving even coverage.
Cons and cautions
Not biodegradable
As a synthetic silicone, it is not readily biodegradable in the environment, which may be a concern for eco-conscious users.
Potential buildup on hair
In high concentrations or with infrequent washing, it can accumulate on hair strands, leading to dullness or limpness over time.
Best for
- People with normal to oily skin who want a smooth, matte finish
- Those looking for a lightweight primer or sunscreen base that doesn't feel heavy
Use caution if
- Individuals who strictly avoid silicones in their skincare or haircare routine
Usage tips
Safety summary
Bisphenylhexamethicone is considered safe for topical use in cosmetics. It has low irritation and comedogenic potential, making it suitable for most skin types. However, as with any ingredient, patch testing is recommended for those with sensitive skin.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel have concluded that bisphenylhexamethicone is safe in cosmetic formulations at typical concentrations. There is limited independent research on its long-term environmental impact.
Common label clues
- Typical concentration
- 1% to 10%
- 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 as used.
- Common uses
- Serums, Moisturizers, Primers, Sunscreens, Hair conditioners, Styling products
- Environmental note
- Silicones like bisphenylhexamethicone are not readily biodegradable and may persist in aquatic environments. Some manufacturers are exploring more eco-friendly alternatives.
Good to know
- Bisphenylhexamethicone is often used in combination with other silicones to fine-tune texture and feel.
- It is considered safe by major cosmetic ingredient review panels at typical use levels.
Common questions
What is Bisphenylhexamethicone in beauty products?
Bisphenylhexamethicone is a type of silicone used in cosmetics to make products feel silky and spread easily. It sits on top of the skin or hair, creating a thin, breathable film that helps lock in moisture and reduces friction. Unlike some heavy silicones, it's lightweight and less likely to cause buildup or greasiness, making it popular in primers, sunscreens, and hair serums.
What does Bisphenylhexamethicone do in a beauty product?
It forms a thin, flexible film on the skin or hair surface, which reduces water loss (acts as an occlusive) and creates a barrier that helps other ingredients stay in place. Its low surface tension allows it to spread easily, giving a silky, non-tacky finish.
Is Bisphenylhexamethicone safe for most people?
Bisphenylhexamethicone is considered safe for topical use in cosmetics. It has low irritation and comedogenic potential, making it suitable for most skin types. However, as with any ingredient, patch testing is recommended for those with sensitive skin.
Who should be careful with Bisphenylhexamethicone?
Individuals who strictly avoid silicones in their skincare or haircare routine
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.