Ingredient review
Tetradecyleicosyl Stearate
INCI: Tetradecyleicosyl Stearate
A gentle, non-greasy emollient that helps moisturize and improve the feel of skincare products without clogging pores.
In plain English
Tetradecyleicosyl Stearate is a synthetic ingredient made from a fatty alcohol and stearic acid. It works as an emollient, meaning it helps soften and smooth the skin by forming a light, breathable film that reduces water loss. Unlike some heavy oils, it feels silky and non-greasy, making it a popular choice in moisturizers, creams, and makeup for a pleasant 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
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Tetradecyleicosyl Stearate 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 Tetradecyleicosyl Stearate.
- 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 ester created by combining tetradecyleicosanol (a long-chain fatty alcohol) with stearic acid (a fatty acid found naturally in shea butter and cocoa butter). It is a white, waxy solid at room temperature that melts on contact with skin.
How it works
It sits on the skin's surface, filling in tiny gaps between skin cells to create a smooth, soft feel. It also helps other ingredients spread evenly and can improve the stability and thickness of a product.
Pros
Lightweight feel
It provides a silky, non-greasy finish that works well for oily or combination skin types.
Texture enhancer
Improves the consistency and spreadability of products, making them feel more luxurious on the skin.
Cons and cautions
Synthetic origin
It is lab-made, which may be a drawback for consumers seeking exclusively natural or plant-derived ingredients.
Limited research
Compared to common emollients like glycerin or jojoba oil, there is less published research on its long-term skin effects.
Best for
- Anyone looking for a lightweight, non-greasy moisturizer
- People with oily or combination skin who want hydration without heaviness
Use caution if
- Those with a known allergy to stearic acid or related esters (rare)
Usage tips
Safety summary
Tetradecyleicosyl Stearate is considered safe for use in cosmetics. It has low irritation and comedogenic potential, making it suitable for most skin types. Allergic reactions are very rare.
Research notes
While not extensively studied on its own, the ingredient belongs to a well-understood class of esters used for decades in cosmetics. Safety assessments rely on data from similar compounds, which show no significant toxicity or irritation at typical use levels.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. The Cosmetic Ingredient Review (CIR) panel has evaluated similar esters and found them safe at typical levels.
- Common uses
- Moisturizers, Creams, Lotions, Lip products, Makeup
- Environmental note
- As a synthetic ingredient, its environmental impact depends on manufacturing practices. It is not known to be biodegradable in all conditions.
Good to know
- It is often used in combination with other emollients to balance texture and feel.
- This ingredient is considered safe by major regulatory bodies when used in cosmetic concentrations.
Common questions
What is Tetradecyleicosyl Stearate in beauty products?
Tetradecyleicosyl Stearate is a synthetic ingredient made from a fatty alcohol and stearic acid. It works as an emollient, meaning it helps soften and smooth the skin by forming a light, breathable film that reduces water loss. Unlike some heavy oils, it feels silky and non-greasy, making it a popular choice in moisturizers, creams, and makeup for a pleasant texture.
What does Tetradecyleicosyl Stearate do in a beauty product?
It sits on the skin's surface, filling in tiny gaps between skin cells to create a smooth, soft feel. It also helps other ingredients spread evenly and can improve the stability and thickness of a product.
Is Tetradecyleicosyl Stearate safe for most people?
Tetradecyleicosyl Stearate is considered safe for use in cosmetics. It has low irritation and comedogenic potential, making it suitable for most skin types. Allergic reactions are very rare.
Who should be careful with Tetradecyleicosyl Stearate?
Those with a known allergy to stearic acid or related esters (rare)
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.