Ingredient review
PEG-150 Polyglyceryl-2 Tristearate
INCI: PEG-150 Polyglyceryl-2 Tristearate
A mild, multi-purpose surfactant that cleans without stripping the skin, making it a good choice for sensitive skin.
In plain English
This ingredient is a gentle cleanser that helps water and oil mix together so you can wash away dirt and makeup without harsh suds. It's often used in products that need to be effective yet kind to the skin barrier.
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-150 Polyglyceryl-2 Tristearate 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-150 Polyglyceryl-2 Tristearate.
- 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 compound made by attaching polyethylene glycol (PEG) chains to a polyglyceryl ester of stearic acid. It acts as a surfactant and emulsifier.
How it works
It reduces the surface tension between oil and water, allowing them to blend into a stable mixture. This helps lift oil-based impurities from the skin so they can be rinsed away with water.
Pros
Gentle on skin
Cleans effectively without stripping natural oils, making it ideal for daily use on sensitive or dry skin.
Good for formulas
Helps create smooth, stable emulsions that feel luxurious and rinse cleanly.
Cons and cautions
Manufacturing concerns
PEG compounds may contain trace impurities like ethylene oxide if not properly purified, though reputable brands ensure high-quality sourcing.
Not for strict avoiders
If you choose to avoid all PEG-derived ingredients, this one won't fit your routine.
Best for
- People with dry or sensitive skin
- Anyone looking for a gentle, non-stripping cleanser
Use caution if
- Those with known sensitivity to PEG compounds
Usage tips
Safety summary
Considered safe for use in cosmetics at typical concentrations. Low irritation and comedogenic risk. Choose products from reputable brands that test for purity.
Research notes
Limited direct studies on this specific compound, but PEG-based surfactants are well-studied and widely regarded as safe in rinse-off products. The Cosmetic Ingredient Review (CIR) panel has reviewed similar PEG compounds and found them safe under current usage practices.
Common label clues
- Typical concentration
- 1–10%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. Manufacturers must follow purity guidelines to limit impurities.
- Common uses
- Cleansers, Shampoos, Body washes, Makeup removers
- Environmental note
- PEG compounds are generally biodegradable, but their production involves petrochemicals. Some consumers prefer plant-based alternatives.
Good to know
- Often found in sulfate-free cleansers as a primary or secondary surfactant.
- The '150' refers to the average number of PEG units, which influences its water solubility and mildness.
Common questions
What is PEG-150 Polyglyceryl-2 Tristearate in beauty products?
This ingredient is a gentle cleanser that helps water and oil mix together so you can wash away dirt and makeup without harsh suds. It's often used in products that need to be effective yet kind to the skin barrier.
What does PEG-150 Polyglyceryl-2 Tristearate do in a beauty product?
It reduces the surface tension between oil and water, allowing them to blend into a stable mixture. This helps lift oil-based impurities from the skin so they can be rinsed away with water.
Is PEG-150 Polyglyceryl-2 Tristearate safe for most people?
Considered safe for use in cosmetics at typical concentrations. Low irritation and comedogenic risk. Choose products from reputable brands that test for purity.
Who should be careful with PEG-150 Polyglyceryl-2 Tristearate?
Those with known sensitivity to PEG compounds
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.