Ingredient review
PEG-10 Glyceryl Stearate
INCI: PEG-10 Glyceryl Stearate
A reliable emulsifier that helps create smooth, stable creams and lotions with low irritation potential.
In plain English
PEG-10 Glyceryl Stearate is a semi-synthetic ingredient that acts like a bridge between oil and water. In a moisturizer or cleanser, it stops the product from separating into oily and watery layers, so you get a consistent, creamy texture every time you use it. It is considered very gentle on skin.
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PEG-10 Glyceryl Stearate 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 PEG-10 Glyceryl Stearate.
- 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
PEG-10 Glyceryl Stearate is a polyethylene glycol (PEG) derivative of glyceryl stearate, a fatty acid from plant or animal sources. The 'PEG-10' part means it has 10 ethylene oxide units attached, which makes it water-friendly while the stearate part is oil-friendly.
How it works
It works by positioning itself at the boundary between oil and water droplets, reducing surface tension so the two phases can mix into a stable emulsion. This prevents your lotion or cream from separating into a watery layer and an oily layer over time.
Pros
Gentle on skin
PEG-10 Glyceryl Stearate has a very low irritation risk, making it suitable for sensitive skin types when used in properly formulated products.
Improves product stability
It prevents oil and water from separating, so your moisturizer or lotion stays smooth and effective from first use to last.
Cons and cautions
Not natural
This is a semi-synthetic ingredient, so it won't appeal to people who prefer only natural or organic ingredients in their skincare.
Potential trace impurities
Like all PEG compounds, if not thoroughly purified during manufacturing, it could contain trace amounts of ethylene oxide or 1,4-dioxane, though reputable brands ensure high purity.
Best for
- Anyone using standard moisturizers or creams
- People with normal to dry skin looking for a stable, gentle formula
Use caution if
- Those seeking 100% natural or organic-only skincare products
Usage tips
Safety summary
PEG-10 Glyceryl Stearate is considered safe for use in cosmetics at typical concentrations. The main concern is potential trace impurities from manufacturing, which are well-controlled by reputable suppliers. It is non-irritating and non-comedogenic for most people.
Research notes
The Cosmetic Ingredient Review (CIR) panel has evaluated PEG glyceryl stearates and concluded they are safe in cosmetic formulations. No significant skin sensitization or toxicity has been reported in standard tests.
Common label clues
- Typical concentration
- 1% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions. The Cosmetic Ingredient Review (CIR) panel has reviewed PEG glyceryl stearates and found them safe as used.
- Common uses
- Moisturizers, Cleansers, Lotions, Creams
- Environmental note
- PEG compounds are generally biodegradable, but their production involves ethylene oxide, which is derived from fossil fuels.
Good to know
- PEG-10 Glyceryl Stearate is often used alongside other emulsifiers to create a rich, non-greasy feel.
- It is considered safe by major regulatory bodies when used in cosmetics at typical concentrations.
Common questions
What is PEG-10 Glyceryl Stearate in beauty products?
PEG-10 Glyceryl Stearate is a semi-synthetic ingredient that acts like a bridge between oil and water. In a moisturizer or cleanser, it stops the product from separating into oily and watery layers, so you get a consistent, creamy texture every time you use it. It is considered very gentle on skin.
What does PEG-10 Glyceryl Stearate do in a beauty product?
It works by positioning itself at the boundary between oil and water droplets, reducing surface tension so the two phases can mix into a stable emulsion. This prevents your lotion or cream from separating into a watery layer and an oily layer over time.
Is PEG-10 Glyceryl Stearate safe for most people?
PEG-10 Glyceryl Stearate is considered safe for use in cosmetics at typical concentrations. The main concern is potential trace impurities from manufacturing, which are well-controlled by reputable suppliers. It is non-irritating and non-comedogenic for most people.
Who should be careful with PEG-10 Glyceryl Stearate?
Those seeking 100% natural or organic-only skincare products
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.