Ingredient review
Tetradecane
INCI: TETRADECANE
Tetradecane is a lightweight, non-greasy emollient that helps products glide on smoothly without clogging pores.
In plain English
Tetradecane is a type of oil that comes from petroleum, but it's very different from heavy, greasy oils. Think of it like a very thin, fast-spreading oil that helps your skincare products feel silky and lightweight on your skin. It evaporates quickly, so it doesn't leave a sticky or heavy residue. You'll often find it in cleansing oils and makeup removers because it helps dissolve makeup and sunscreen without stripping your skin.
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
Tetradecane 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 Tetradecane.
- 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
Tetradecane is a straight-chain alkane hydrocarbon with 14 carbon atoms. It is a colorless, odorless liquid derived from petroleum refining. In cosmetics, it is used as an emollient (to soften and smooth skin) and as a solvent (to dissolve other ingredients).
How it works
When applied to the skin, tetradecane spreads easily and forms a thin, non-occlusive film that temporarily reduces water loss from the skin's surface, giving a soft feel. Its low viscosity allows it to penetrate the upper layers of the stratum corneum (the outermost skin layer) quickly, helping other ingredients absorb better. It also helps dissolve oil-based impurities like sebum and makeup.
Pros
Lightweight feel
Tetradecane spreads easily and evaporates quickly, leaving skin feeling soft and non-greasy—ideal for oily or combination skin.
Effective solvent
It dissolves oil-based impurities like makeup and sunscreen without stripping the skin, making it a common ingredient in cleansing oils.
Cons and cautions
Petroleum-derived
As a synthetic hydrocarbon from petroleum, it may not appeal to those seeking natural or sustainable ingredients.
Potential dryness
In high concentrations without complementary moisturizers, tetradecane can evaporate too quickly and leave skin feeling slightly dry.
Best for
- People with oily or combination skin who want lightweight hydration
- Anyone using oil-based cleansers or makeup removers
Use caution if
- Those with very dry or compromised skin barriers may prefer richer emollients
Usage tips
Safety summary
Tetradecane is considered safe for cosmetic use with low irritation and comedogenic potential. It is well-tolerated by most skin types, though those with very dry skin may prefer richer emollients.
Research notes
Studies on tetradecane focus on its role as a solvent and emollient. It is not associated with significant skin sensitization or toxicity at cosmetic concentrations. The CIR panel has reviewed it and found it safe.
Common label clues
- Typical concentration
- Typically 1–10% in leave-on products, higher in rinse-off formulas
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions. The Cosmetic Ingredient Review (CIR) panel has deemed it safe at typical use concentrations.
- Common uses
- Cleansing oils, Makeup removers, Moisturizers, Serums
- Environmental note
- As a petroleum-derived ingredient, tetradecane is not biodegradable in the same way as plant-based oils, but it is used in small amounts in rinse-off products.
Good to know
- Tetradecane is often combined with other hydrocarbons like dodecane or hexadecane to fine-tune texture.
- It is considered safe for use in cosmetics by major regulatory bodies.
Common questions
What is Tetradecane in beauty products?
Tetradecane is a type of oil that comes from petroleum, but it's very different from heavy, greasy oils. Think of it like a very thin, fast-spreading oil that helps your skincare products feel silky and lightweight on your skin. It evaporates quickly, so it doesn't leave a sticky or heavy residue. You'll often find it in cleansing oils and makeup removers because it helps dissolve makeup and sunscreen without stripping your skin.
What does Tetradecane do in a beauty product?
When applied to the skin, tetradecane spreads easily and forms a thin, non-occlusive film that temporarily reduces water loss from the skin's surface, giving a soft feel. Its low viscosity allows it to penetrate the upper layers of the stratum corneum (the outermost skin layer) quickly, helping other ingredients absorb better. It also helps dissolve oil-based impurities like sebum and makeup.
Is Tetradecane safe for most people?
Tetradecane is considered safe for cosmetic use with low irritation and comedogenic potential. It is well-tolerated by most skin types, though those with very dry skin may prefer richer emollients.
Who should be careful with Tetradecane?
Those with very dry or compromised skin barriers may prefer richer emollients
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.