Ingredient review
Polyglyceryl-10 Linoleate
INCI: Polyglyceryl-10 Linoleate
A mild, multi-functional emulsifier that helps create stable, lightweight formulas and may support the skin's moisture barrier.
In plain English
Polyglyceryl-10 Linoleate is a gentle ingredient that helps oil and water mix together in your skincare products, so they feel smooth and don't separate. It's made from glycerin (a common moisturizing ingredient) and linoleic acid (an omega-6 fatty acid found in many plant oils). Because it's so mild, it's often used in products for sensitive skin. It also has a light moisturizing effect and may help support the skin's natural barrier.
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 Linoleate 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 Linoleate.
- 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
Polyglyceryl-10 Linoleate is a semi-synthetic emulsifier created by combining glycerin (specifically polyglycerin-10, a chain of 10 glycerin units) with linoleic acid, an essential fatty acid found in sunflower, safflower, and other plant oils. It belongs to the polyglyceryl ester family, known for being very gentle on skin.
How it works
In a cosmetic formula, this ingredient sits at the boundary between oil and water droplets, reducing surface tension so they can mix into a stable, creamy emulsion. This prevents the product from separating into oily and watery layers. On the skin, the linoleic acid portion can help replenish natural lipids, supporting the skin's moisture barrier and reducing water loss.
Pros
Ultra-gentle emulsifier
Polyglyceryl-10 Linoleate is one of the mildest emulsifiers available, making it ideal for sensitive skin formulas that need to avoid common irritants like sulfates or high-foaming surfactants.
Barrier-supporting fatty acids
The linoleic acid portion can help replenish the skin's natural lipid barrier, which may improve moisture retention and resilience over time.
Cons and cautions
Limited research on long-term effects
While generally considered safe, there are fewer long-term studies on polyglyceryl esters compared to more traditional emulsifiers. Current evidence supports its safety in cosmetics.
Higher cost
Because it's a specialty ingredient, products containing Polyglyceryl-10 Linoleate may be priced higher than those using conventional emulsifiers.
Best for
- People with sensitive or easily irritated skin
- Anyone looking for lightweight, non-greasy moisturizers or cleansers
Use caution if
- Those with a known allergy to any component of the ingredient (rare)
Usage tips
Safety summary
Polyglyceryl-10 Linoleate is considered very safe for cosmetic use. It has a low irritation and comedogenic risk, and is well-tolerated even by sensitive skin. No significant safety concerns have been reported in the scientific literature.
Research notes
Research on polyglyceryl esters as a class supports their safety and mildness. Specific studies on Polyglyceryl-10 Linoleate are limited, but its components (glycerin and linoleic acid) are well-studied and recognized as safe and beneficial for skin.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. The Cosmetic Ingredient Review (CIR) panel has evaluated polyglyceryl esters and found them safe as used.
- Common uses
- Moisturizers, Cleansers, Serums, Sunscreens
- Environmental note
- Derived from renewable plant sources (glycerin and plant oils) and considered biodegradable, making it a more sustainable choice compared to some synthetic emulsifiers.
Good to know
- Polyglyceryl-10 Linoleate is often used in 'waterless' or anhydrous formulas as a texture enhancer.
- It is considered biodegradable and more environmentally friendly than some petroleum-based emulsifiers.
Common questions
What is Polyglyceryl-10 Linoleate in beauty products?
Polyglyceryl-10 Linoleate is a gentle ingredient that helps oil and water mix together in your skincare products, so they feel smooth and don't separate. It's made from glycerin (a common moisturizing ingredient) and linoleic acid (an omega-6 fatty acid found in many plant oils). Because it's so mild, it's often used in products for sensitive skin. It also has a light moisturizing effect and may help support the skin's natural barrier.
What does Polyglyceryl-10 Linoleate do in a beauty product?
In a cosmetic formula, this ingredient sits at the boundary between oil and water droplets, reducing surface tension so they can mix into a stable, creamy emulsion. This prevents the product from separating into oily and watery layers. On the skin, the linoleic acid portion can help replenish natural lipids, supporting the skin's moisture barrier and reducing water loss.
Is Polyglyceryl-10 Linoleate safe for most people?
Polyglyceryl-10 Linoleate is considered very safe for cosmetic use. It has a low irritation and comedogenic risk, and is well-tolerated even by sensitive skin. No significant safety concerns have been reported in the scientific literature.
Who should be careful with Polyglyceryl-10 Linoleate?
Those with a known allergy to any component of the ingredient (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.