Ingredient review
C16-23 Alkane
INCI: C16-23 Alkane
A gentle, plant-derived emollient that provides a silky feel without clogging pores or causing irritation.
In plain English
C16-23 Alkane is a mixture of natural hydrocarbons (similar to mineral oil but from plants) that helps your skin feel smooth and soft. It spreads easily, doesn't feel greasy, and is often used in lightweight moisturizers and sunscreens to improve texture.
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
- natural
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
C16-23 Alkane 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 C16-23 Alkane.
- 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 blend of straight-chain hydrocarbons (alkanes) with 16 to 23 carbon atoms, typically derived from plant sources like coconut or palm oil through a process called hydrogenation.
How it works
It sits on the skin's surface, forming a thin, breathable film that reduces water loss and makes the skin feel smooth. It also helps other ingredients spread more evenly and gives products a luxurious, silky texture.
Pros
Silky texture without grease
C16-23 Alkane gives products a smooth, velvety feel that absorbs quickly, making it ideal for daytime moisturizers and makeup primers.
Low irritation and comedogenic risk
It is considered very gentle and unlikely to clog pores, so it works well for sensitive and acne-prone skin.
Cons and cautions
Sustainability concerns
If sourced from palm oil, it may contribute to deforestation unless certified sustainable. Look for brands that specify sustainable sourcing.
May feel heavy on very oily skin
In high concentrations, some people with extremely oily skin might find it slightly too rich, though it is generally lightweight.
Best for
- People with normal to dry skin looking for lightweight hydration
- Those who prefer plant-derived ingredients over silicones or mineral oil
Use caution if
- Individuals with known allergies to specific plant sources (e.g., coconut) should check the origin
Usage tips
Safety summary
C16-23 Alkane is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. No significant safety concerns have been reported in regulatory reviews.
Research notes
Alkanes like C16-23 are well-studied as safe emollients. Research focuses on their skin barrier function and sensory properties, with no evidence of toxicity or sensitization at cosmetic use levels.
Common label clues
- Typical concentration
- 1% to 20%
- Regulatory status
- Approved for use in cosmetics globally, including by the FDA (as part of generally recognized safe ingredients) and the EU Cosmetics Regulation.
- Common uses
- Moisturizers, Serums, Sunscreens, Makeup removers, Hair conditioners
- Environmental note
- Derived from renewable plant sources, but sustainability depends on farming practices. Look for RSPO-certified palm or coconut sources.
Good to know
- C16-23 Alkane is often used as a silicone alternative in 'clean' beauty products.
- It is biodegradable and generally considered environmentally friendly compared to some synthetic alternatives.
Common questions
What is C16-23 Alkane in beauty products?
C16-23 Alkane is a mixture of natural hydrocarbons (similar to mineral oil but from plants) that helps your skin feel smooth and soft. It spreads easily, doesn't feel greasy, and is often used in lightweight moisturizers and sunscreens to improve texture.
What does C16-23 Alkane do in a beauty product?
It sits on the skin's surface, forming a thin, breathable film that reduces water loss and makes the skin feel smooth. It also helps other ingredients spread more evenly and gives products a luxurious, silky texture.
Is C16-23 Alkane safe for most people?
C16-23 Alkane is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. No significant safety concerns have been reported in regulatory reviews.
Who should be careful with C16-23 Alkane?
Individuals with known allergies to specific plant sources (e.g., coconut) should check the origin
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.