Ingredient review
Polyglyceryl-10 Pentalinoleate
INCI: Polyglyceryl-10 Pentalinoleate
A gentle, plant-based emulsifier that stabilizes formulas and leaves skin feeling smooth without clogging pores.
In plain English
Polyglyceryl-10 Pentalinoleate is a mild emulsifier made from glycerin and linoleic acid (a fatty acid found in plant oils). It helps mix water and oil in creams and lotions so they stay smooth and don't separate. It also leaves a soft, non-greasy finish on the skin.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
Polyglyceryl-10 Pentalinoleate 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 Polyglyceryl-10 Pentalinoleate.
- 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 semi-synthetic emulsifier created by combining polyglycerin (from glycerin) with linoleic acid (a fatty acid from plant oils like sunflower or safflower). It belongs to the polyglyceryl ester family, known for being gentle and biodegradable.
How it works
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. This prevents creams and lotions from separating over time. It also forms a thin, conditioning layer on the skin that helps lock in moisture without feeling heavy.
Pros
Gentle on skin
Polyglyceryl-10 Pentalinoleate has a low irritation risk, making it suitable for sensitive skin types and daily use.
Non-comedogenic
It has a low comedogenic rating, meaning it is unlikely to clog pores, which is great for acne-prone skin.
Cons and cautions
Limited versatility
It works best in oil-in-water emulsions and may not perform well in very thin, watery formulas or anhydrous products.
Less researched
Compared to classic emulsifiers like cetearyl alcohol, there is less published research on its long-term skin effects.
Best for
- People with normal to dry skin looking for a gentle moisturizer
- Those who prefer plant-derived, biodegradable ingredients
Use caution if
- Individuals with a known allergy to linoleic acid or polyglycerols (rare)
Usage tips
Safety summary
Polyglyceryl-10 Pentalinoleate is considered safe for use in cosmetics. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in standard use concentrations.
Research notes
Research on polyglyceryl esters supports their safety and mildness. Specific studies on Polyglyceryl-10 Pentalinoleate are limited, but the broader class is well-regarded for skin compatibility and biodegradability.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics globally, including by the EU CosIng database and US FDA (as part of generally recognized safe emulsifiers). No specific restrictions.
- Common uses
- Moisturizers, Cleansers, Serums, Sunscreens
- Environmental note
- Derived from renewable plant sources (glycerin and linoleic acid) and is biodegradable, making it a more sustainable choice compared to some synthetic emulsifiers.
Good to know
- Polyglyceryl-10 Pentalinoleate is often used in 'green' or natural-leaning formulations due to its plant-based origin.
- It is biodegradable and considered environmentally friendly.
Common questions
What is Polyglyceryl-10 Pentalinoleate in beauty products?
Polyglyceryl-10 Pentalinoleate is a mild emulsifier made from glycerin and linoleic acid (a fatty acid found in plant oils). It helps mix water and oil in creams and lotions so they stay smooth and don't separate. It also leaves a soft, non-greasy finish on the skin.
What does Polyglyceryl-10 Pentalinoleate do in a beauty product?
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. This prevents creams and lotions from separating over time. It also forms a thin, conditioning layer on the skin that helps lock in moisture without feeling heavy.
Is Polyglyceryl-10 Pentalinoleate safe for most people?
Polyglyceryl-10 Pentalinoleate is considered safe for use in cosmetics. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in standard use concentrations.
Who should be careful with Polyglyceryl-10 Pentalinoleate?
Individuals with a known allergy to linoleic acid or polyglycerols (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.