Ingredient review
Polysilicone-23
INCI: POLYSILICONE-23
Polysilicone-23 is a gentle silicone that creates a smooth, non-greasy film on skin and hair, but it may not suit those avoiding silicones entirely.
In plain English
Polysilicone-23 is a type of silicone that forms a thin, flexible film on your skin or hair. This film helps products spread easily, gives a silky feel, and can temporarily smooth the surface. It doesn't clog pores or irritate most people, but it's not water-soluble, so it may require a double cleanse to remove fully. Think of it as a lightweight, invisible shield that makes your skin feel soft and your hair look shiny without heavy buildup.
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
Polysilicone-23 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 Polysilicone-23.
- 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
Polysilicone-23 is a synthetic silicone polymer, part of the polysilicone family. It is designed to be a film-forming agent that leaves a smooth, non-tacky finish on skin and hair. Unlike some heavier silicones, it is relatively lightweight and less likely to cause buildup.
How it works
When applied, Polysilicone-23 spreads into a thin, flexible layer that adheres to the skin or hair surface. This layer reduces friction, making the product feel silky and improving the application of other ingredients. It also helps lock in moisture by reducing water loss from the skin's surface, though it is not a heavy occlusive.
Pros
Silky, non-greasy feel
Polysilicone-23 leaves a smooth, velvety finish on skin and hair without the heavy or sticky sensation some silicones cause.
Lightweight and breathable
Unlike heavier silicones, it forms a thin film that allows the skin to breathe, making it suitable for daily use in serums and moisturizers.
Cons and cautions
Not water-soluble
Polysilicone-23 does not dissolve in water, so it may require a double cleanse (oil cleanser followed by water cleanser) to fully remove, especially if layered.
Environmental persistence
As a synthetic silicone, it is not biodegradable and can contribute to environmental accumulation, which is a concern for eco-conscious consumers.
Best for
- People with normal to dry skin who want a smooth, non-greasy finish
- Those looking for a lightweight silicone that won't clog pores
Use caution if
- Individuals strictly avoiding all silicones for environmental or personal reasons
Usage tips
Safety summary
Polysilicone-23 has a low irritation and comedogenic risk, making it suitable for most skin types. It is considered safe in cosmetic formulations at typical concentrations. However, as with all silicones, it may not be ideal for those seeking fully biodegradable or natural products.
Research notes
Research on Polysilicone-23 specifically is limited, but the broader class of polysilicones is well-studied for skin and hair safety. They are generally non-irritating and non-sensitizing. Environmental persistence remains a concern.
Common label clues
- Typical concentration
- Typically 0.5% to 5% in leave-on products
- Regulatory status
- Approved for use in cosmetics in the US (FDA), EU (CosIng), and other major markets. No specific restrictions at typical use levels.
- Common uses
- Serums, Moisturizers, Primers, Hair serums, Leave-in conditioners
- Environmental note
- Silicones like Polysilicone-23 are not biodegradable and can persist in aquatic environments. Some brands are moving toward biodegradable alternatives.
Good to know
- Polysilicone-23 is often used in combination with other silicones to fine-tune texture and feel.
- It is considered safe by major regulatory bodies when used in typical cosmetic concentrations.
Common questions
What is Polysilicone-23 in beauty products?
Polysilicone-23 is a type of silicone that forms a thin, flexible film on your skin or hair. This film helps products spread easily, gives a silky feel, and can temporarily smooth the surface. It doesn't clog pores or irritate most people, but it's not water-soluble, so it may require a double cleanse to remove fully. Think of it as a lightweight, invisible shield that makes your skin feel soft and your hair look shiny without heavy buildup.
What does Polysilicone-23 do in a beauty product?
When applied, Polysilicone-23 spreads into a thin, flexible layer that adheres to the skin or hair surface. This layer reduces friction, making the product feel silky and improving the application of other ingredients. It also helps lock in moisture by reducing water loss from the skin's surface, though it is not a heavy occlusive.
Is Polysilicone-23 safe for most people?
Polysilicone-23 has a low irritation and comedogenic risk, making it suitable for most skin types. It is considered safe in cosmetic formulations at typical concentrations. However, as with all silicones, it may not be ideal for those seeking fully biodegradable or natural products.
Who should be careful with Polysilicone-23?
Individuals strictly avoiding all silicones for environmental or personal reasons
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.