Ingredient review
Pentaerythrityl Tetramyristate
INCI: Pentaerythrityl Tetramyristate
A lightweight synthetic emollient that softens skin without clogging pores, commonly used to create a smooth, silky finish in creams and makeup.
In plain English
Pentaerythrityl tetramyristate is a man-made oil-like ingredient that helps moisturizers and makeup feel smooth and silky on your skin. It spreads easily and doesn't leave a heavy or greasy residue, making it a popular choice for products that need a light, elegant texture. Think of it as a modern, non-greasy alternative to heavier plant oils.
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
Pentaerythrityl Tetramyristate 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 Pentaerythrityl Tetramyristate.
- 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 derived from pentaerythritol (a polyol) and myristic acid (a fatty acid found naturally in nutmeg and coconut oil). It is produced through a controlled chemical reaction to create a stable, non-greasy emollient.
How it works
It sits on the surface of the skin, filling in tiny gaps between skin cells to create a smooth, soft feel. It also helps other ingredients spread evenly and can reduce the whitish residue (bloom) sometimes seen in sunscreens and foundations.
Pros
Lightweight feel
Unlike heavier oils, this ingredient leaves a silky, non-greasy finish that works well for oily and combination skin types.
Improves product texture
It helps creams and makeup glide on smoothly and can reduce the chalky white cast that some sunscreens leave behind.
Cons and cautions
Not a hydrator
It only softens the skin's surface and does not add water or attract moisture, so it's best paired with humectants like glycerin.
Synthetic origin
Some consumers prefer naturally derived emollients, and this ingredient is made through chemical synthesis.
Best for
- People with oily or combination skin who want a light moisturizer
- Anyone looking for a smooth, silky finish in foundation or tinted moisturizer
Use caution if
- Those strictly avoiding synthetic ingredients in their routine
Usage tips
Safety summary
Pentaerythrityl tetramyristate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic rating, making it suitable for most skin types, including sensitive and acne-prone skin.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel have concluded that similar pentaerythrityl esters are safe in cosmetics. Specific studies on this exact ester are limited, but its chemical class is well-tolerated and non-irritating.
Common label clues
- Typical concentration
- Typically 1–10% in leave-on products, up to 20% in anhydrous formulas
- Regulatory status
- Approved for use in cosmetics worldwide, including by the U.S. FDA and EU CosIng database. No known restrictions at typical use levels.
- Common uses
- Moisturizers, Serums, Foundations, Lipsticks, Sunscreens
- Environmental note
- As a synthetic ester, its biodegradability is moderate. It is not derived from endangered plants or animal sources.
Good to know
- It is often used in 'silky' or 'velvet' texture claims on product labels.
- Despite its long name, it is considered very gentle and unlikely to cause irritation.
Common questions
What is Pentaerythrityl Tetramyristate in beauty products?
Pentaerythrityl tetramyristate is a man-made oil-like ingredient that helps moisturizers and makeup feel smooth and silky on your skin. It spreads easily and doesn't leave a heavy or greasy residue, making it a popular choice for products that need a light, elegant texture. Think of it as a modern, non-greasy alternative to heavier plant oils.
What does Pentaerythrityl Tetramyristate do in a beauty product?
It sits on the surface of the skin, filling in tiny gaps between skin cells to create a smooth, soft feel. It also helps other ingredients spread evenly and can reduce the whitish residue (bloom) sometimes seen in sunscreens and foundations.
Is Pentaerythrityl Tetramyristate safe for most people?
Pentaerythrityl tetramyristate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic rating, making it suitable for most skin types, including sensitive and acne-prone skin.
Who should be careful with Pentaerythrityl Tetramyristate?
Those strictly avoiding synthetic ingredients in their routine
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.