Ingredient review
Glyceryl Pentadecanoate
INCI: Glyceryl Pentadecanoate
A gentle emollient that helps soften and smooth skin without clogging pores, suitable for most skin types.
In plain English
Glyceryl pentadecanoate is a type of fatty acid ester that acts like a skin-friendly oil. It helps keep the skin's surface soft and hydrated by forming a light, non-greasy film that reduces water loss. Think of it as a moisturizing ingredient that feels silky and doesn't leave a heavy residue.
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
Glyceryl Pentadecanoate 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 Glyceryl Pentadecanoate.
- 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
Glyceryl pentadecanoate is a synthetic ester made from glycerin and pentadecanoic acid, a 15-carbon saturated fatty acid. It is a clear to pale yellow liquid at room temperature and is used in cosmetics primarily for its emollient properties.
How it works
When applied to the skin, glyceryl pentadecanoate spreads easily and fills in the gaps between skin cells, helping to smooth the skin's surface. It also forms a thin barrier that slows down moisture evaporation, which keeps the skin feeling hydrated and supple. Because it is non-ionic, it is compatible with a wide range of other ingredients.
Pros
Lightweight feel
It absorbs quickly without leaving a greasy residue, making it comfortable for daily use under makeup or sunscreen.
Low irritation potential
It has a low irritation and comedogenic rating, so it is unlikely to cause breakouts or stinging, even on sensitive skin.
Cons and cautions
Synthetic origin
It is not a natural ingredient, which may be a drawback for consumers seeking plant-based or naturally derived alternatives.
Limited research
Compared to more common emollients like glycerin or squalane, there is less published research on its long-term skin benefits.
Best for
- People with normal to dry skin looking for a gentle moisturizer
- Those with sensitive or acne-prone skin who want a non-comedogenic emollient
Use caution if
- Individuals with a known allergy to synthetic esters (rare)
- Those who strictly avoid all synthetic ingredients
Usage tips
Safety summary
Glyceryl pentadecanoate is considered safe for topical use in cosmetics. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in routine use.
Research notes
Research on glyceryl pentadecanoate is limited but consistent with other fatty acid esters. It is well-tolerated on skin and functions effectively as an emollient. No major adverse effects have been documented in cosmetic applications.
Common label clues
- Typical concentration
- Typically 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. The Cosmetic Ingredient Review (CIR) panel has evaluated it and found it safe as used.
- Common uses
- Moisturizers, Serums, Facial oils, Body lotions
- Environmental note
- As a synthetic ester, its environmental impact depends on manufacturing processes. It is not known to be bioaccumulative or toxic to aquatic life at typical cosmetic concentrations.
Good to know
- It is often used in combination with other emollients to achieve a silky texture
- It is considered safe by the Cosmetic Ingredient Review (CIR) panel at typical use levels
Common questions
What is Glyceryl Pentadecanoate in beauty products?
Glyceryl pentadecanoate is a type of fatty acid ester that acts like a skin-friendly oil. It helps keep the skin's surface soft and hydrated by forming a light, non-greasy film that reduces water loss. Think of it as a moisturizing ingredient that feels silky and doesn't leave a heavy residue.
What does Glyceryl Pentadecanoate do in a beauty product?
When applied to the skin, glyceryl pentadecanoate spreads easily and fills in the gaps between skin cells, helping to smooth the skin's surface. It also forms a thin barrier that slows down moisture evaporation, which keeps the skin feeling hydrated and supple. Because it is non-ionic, it is compatible with a wide range of other ingredients.
Is Glyceryl Pentadecanoate safe for most people?
Glyceryl pentadecanoate is considered safe for topical use in cosmetics. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in routine use.
Who should be careful with Glyceryl Pentadecanoate?
Individuals with a known allergy to synthetic esters (rare) Those who strictly avoid all synthetic ingredients
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.