Ingredient review
C14-16 Isoparaffin
INCI: C14-16 Isoparaffin
A safe, lightweight synthetic oil that helps products spread smoothly and feel non-greasy, but offers no active skincare benefits.
In plain English
C14-16 Isoparaffin is a man-made oil derived from petroleum. It is very lightweight and evaporates quickly, so it doesn't leave a heavy, greasy feeling on your skin. In skincare, it is used to help other ingredients spread evenly and to give products a silky, smooth texture. Think of it as a helper ingredient that makes your lotion or makeup remover feel nicer to apply, but it doesn't moisturize or treat your skin on its own.
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
C14-16 Isoparaffin 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 C14-16 Isoparaffin.
- 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 mixture of synthetic hydrocarbons with 14 to 16 carbon atoms, produced from petroleum refining. It is a clear, odorless liquid that is chemically stable and non-reactive.
How it works
As a solvent, it dissolves other ingredients and helps them mix together. As an emollient, it temporarily fills in the spaces between skin cells, making the skin feel softer and smoother. Its low viscosity and quick evaporation give a lightweight, non-sticky finish.
Pros
Lightweight feel
It evaporates quickly and leaves a silky, non-greasy finish, making it ideal for lotions and makeup removers used on oily or combination skin.
Improves product texture
It helps other ingredients spread evenly and gives a smooth, elegant feel to creams and serums, enhancing the user experience.
Cons and cautions
Petroleum-derived
It is a synthetic ingredient made from petroleum, which may be a concern for those seeking natural or sustainable skincare options.
No active benefits
It does not hydrate, repair, or protect the skin on its own. It only improves texture and feel, so it should be paired with active ingredients for real skincare results.
Best for
- People who prefer lightweight, non-greasy moisturizers
- Those with oily or combination skin looking for a smooth texture without heaviness
Use caution if
- Individuals who strictly avoid petroleum-derived ingredients
- Those with very dry or dehydrated skin who need richer, more occlusive moisturizers
Usage tips
Safety summary
C14-16 Isoparaffin is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. However, it is a petroleum derivative, which may be a concern for some consumers.
Research notes
The Cosmetic Ingredient Review (CIR) panel reviewed isoparaffins and concluded they are safe in cosmetics. No significant human or animal toxicity has been reported at typical use levels. Most evidence comes from safety assessments rather than efficacy studies.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics by the FDA and the European Commission. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used in rinse-off and leave-on products.
- Common uses
- Moisturizers, Makeup removers, Sunscreens, Hair conditioners
- Environmental note
- As a petroleum-derived ingredient, it is not biodegradable and may contribute to environmental concerns. Some brands are moving toward plant-based alternatives.
Good to know
- C14-16 Isoparaffin is often used in 'oil-free' products because it evaporates quickly and doesn't leave a heavy oil residue.
- It is considered safe by major regulatory bodies when used in cosmetics at typical concentrations.
Common questions
What is C14-16 Isoparaffin in beauty products?
C14-16 Isoparaffin is a man-made oil derived from petroleum. It is very lightweight and evaporates quickly, so it doesn't leave a heavy, greasy feeling on your skin. In skincare, it is used to help other ingredients spread evenly and to give products a silky, smooth texture. Think of it as a helper ingredient that makes your lotion or makeup remover feel nicer to apply, but it doesn't moisturize or treat your skin on its own.
What does C14-16 Isoparaffin do in a beauty product?
As a solvent, it dissolves other ingredients and helps them mix together. As an emollient, it temporarily fills in the spaces between skin cells, making the skin feel softer and smoother. Its low viscosity and quick evaporation give a lightweight, non-sticky finish.
Is C14-16 Isoparaffin safe for most people?
C14-16 Isoparaffin is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. However, it is a petroleum derivative, which may be a concern for some consumers.
Who should be careful with C14-16 Isoparaffin?
Individuals who strictly avoid petroleum-derived ingredients Those with very dry or dehydrated skin who need richer, more occlusive moisturizers
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.