Ingredient review
C6-14 Polyolefin
INCI: POLY(C6-14 OLEFIN)
A safe, non-greasy synthetic oil that helps products glide on smoothly without clogging pores.
In plain English
C6-14 Polyolefin is a man-made oil that feels very light on the skin, unlike heavy natural oils. It helps your moisturizer or sunscreen spread easily and leaves a silky, non-sticky finish. Because it's synthetic, it's very consistent in quality and doesn't go rancid like plant oils can.
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
C6-14 Polyolefin 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 C6-14 Polyolefin.
- 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 hydrocarbon polymer made from short-chain olefins (carbon chains 6 to 14 atoms long). It is produced through controlled polymerization, resulting in a clear, odorless, and stable liquid oil.
How it works
It sits on the surface of the skin, filling in tiny gaps between skin cells to create a smooth, even layer. This reduces friction, improves the slip of the product, and helps other ingredients spread more uniformly. It also forms a very light, breathable film that helps lock in moisture without feeling heavy.
Pros
Lightweight feel
Unlike heavy oils, C6-14 Polyolefin absorbs quickly and leaves a silky, non-sticky finish, making it ideal for daytime use and under makeup.
Pore-friendly
It has a low comedogenic rating, meaning it is unlikely to clog pores or cause breakouts, even for those with oily or acne-prone skin.
Cons and cautions
Synthetic origin
It is derived from petrochemicals, which may be a concern for consumers seeking natural, renewable, or biodegradable ingredients.
Limited skin benefits
Unlike natural oils that can provide antioxidants or fatty acids, this ingredient is purely functional—it improves texture and feel but offers no active skin benefits.
Best for
- Anyone who prefers a lightweight, non-greasy moisturizer
- People with oily or acne-prone skin looking for a pore-friendly emollient
Use caution if
- Those seeking 100% natural or plant-based skincare
Usage tips
Safety summary
C6-14 Polyolefin is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, and is non-comedogenic. No significant safety concerns have been raised by regulatory or scientific bodies.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) and other bodies have concluded that polyolefins of this chain length are safe for topical use. They are well-tolerated on skin and eyes, and do not show evidence of systemic toxicity or carcinogenicity in standard tests.
Common label clues
- Typical concentration
- 1% to 20%
- Regulatory status
- Approved for use in cosmetics worldwide, including by the FDA (as a component of cosmetic formulations) and the EU Cosmetics Regulation. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used.
- Common uses
- Moisturizers, Serums, Sunscreens, Makeup, Hair Conditioners
- Environmental note
- As a synthetic polymer derived from non-renewable resources, it is not biodegradable. However, it is not known to bioaccumulate or pose significant environmental toxicity at typical use levels.
Good to know
- C6-14 Polyolefin is often used as a silicone alternative in 'silicone-free' formulations.
- It is considered safe by major cosmetic safety panels, including the Cosmetic Ingredient Review (CIR).
Common questions
What is C6-14 Polyolefin in beauty products?
C6-14 Polyolefin is a man-made oil that feels very light on the skin, unlike heavy natural oils. It helps your moisturizer or sunscreen spread easily and leaves a silky, non-sticky finish. Because it's synthetic, it's very consistent in quality and doesn't go rancid like plant oils can.
What does C6-14 Polyolefin do in a beauty product?
It sits on the surface of the skin, filling in tiny gaps between skin cells to create a smooth, even layer. This reduces friction, improves the slip of the product, and helps other ingredients spread more uniformly. It also forms a very light, breathable film that helps lock in moisture without feeling heavy.
Is C6-14 Polyolefin safe for most people?
C6-14 Polyolefin is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, and is non-comedogenic. No significant safety concerns have been raised by regulatory or scientific bodies.
Who should be careful with C6-14 Polyolefin?
Those seeking 100% natural or plant-based skincare
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.