Ingredient review
Polyglyceryl-10 Polyhydroxystearate
INCI: Polyglyceryl-10 Polyhydroxystearate
A mild, plant-based emulsifier that helps create stable, non-greasy formulas without irritating the skin.
In plain English
This ingredient is a helper molecule that allows oil and water to mix smoothly in your skincare products. It's made from glycerin (a natural humectant) and stearic acid (a fatty acid from plants). Because it's very gentle, it's often used in products for sensitive skin, including baby care and eczema-friendly formulas.
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 Polyhydroxystearate 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 Polyhydroxystearate.
- 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 derived from glycerin and stearic acid, designed to stabilize oil-in-water emulsions.
How it works
It reduces the surface tension between oil and water, allowing them to blend into a stable, creamy texture. This helps active ingredients spread evenly and prevents the product from separating.
Pros
Very gentle
Rated low on both irritation and comedogenicity, making it safe for acne-prone and sensitive skin.
Stable emulsions
Creates smooth, stable creams and lotions that don't separate over time.
Cons and cautions
Can feel tacky
In high concentrations, it may leave a slightly sticky or heavy feel on the skin.
Not for water-free formulas
It requires water to function as an emulsifier, so it's not suitable for anhydrous products.
Best for
- People with sensitive or reactive skin
- Those who prefer non-greasy moisturizers and sunscreens
Use caution if
- Individuals with known allergies to glycerin or stearic acid (rare)
Usage tips
Safety summary
Polyglyceryl-10 Polyhydroxystearate is considered safe for use in cosmetics. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in regulatory reviews.
Research notes
Research on polyglyceryl esters indicates they are mild and effective emulsifiers. Studies show they do not disrupt the skin barrier and are well-tolerated even in sensitive skin types.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics globally, including by the EU CosIng database and FDA (as a generally recognized safe ingredient).
- Common uses
- Moisturizers, Cleansers, Sunscreens, Serums
- Environmental note
- Derived from plant-based glycerin and stearic acid, it is biodegradable and considered environmentally friendly.
Good to know
- Polyglyceryl-10 Polyhydroxystearate is often used in 'green' or natural-leaning formulations because it's derived from renewable plant sources.
- It is PEG-free, which appeals to those avoiding ethoxylated ingredients.
Common questions
What is Polyglyceryl-10 Polyhydroxystearate in beauty products?
This ingredient is a helper molecule that allows oil and water to mix smoothly in your skincare products. It's made from glycerin (a natural humectant) and stearic acid (a fatty acid from plants). Because it's very gentle, it's often used in products for sensitive skin, including baby care and eczema-friendly formulas.
What does Polyglyceryl-10 Polyhydroxystearate do in a beauty product?
It reduces the surface tension between oil and water, allowing them to blend into a stable, creamy texture. This helps active ingredients spread evenly and prevents the product from separating.
Is Polyglyceryl-10 Polyhydroxystearate safe for most people?
Polyglyceryl-10 Polyhydroxystearate is considered safe for use in cosmetics. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in regulatory reviews.
Who should be careful with Polyglyceryl-10 Polyhydroxystearate?
Individuals with known allergies to glycerin or stearic acid (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.