Ingredient review
PPG-3 Laureth-9
INCI: PPG-3-Laureth-9
PPG-3-Laureth-9 is a synthetic surfactant that helps cleansers foam and remove oil, but it may be slightly drying or irritating for sensitive skin.
In plain English
PPG-3-Laureth-9 is a man-made ingredient that helps water and oil mix together in products like face washes and shampoos. It creates foam and lifts dirt and oil from your skin so they can be rinsed away. Because it's a surfactant (a kind of detergent), it can sometimes strip too much natural oil from the skin, leaving it feeling tight or dry, especially if you have sensitive or dry 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.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PPG-3 Laureth-9 can be useful, but watch for some irritation potential.
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 PPG-3 Laureth-9.
- 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
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
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
PPG-3-Laureth-9 is a synthetic surfactant and emulsifier derived from lauryl alcohol (from coconut or palm oil) combined with propylene oxide and ethylene oxide. It belongs to the alkyl ether sulfate family and is designed to reduce surface tension between oil and water.
How it works
In a cosmetic product, PPG-3-Laureth-9 works by surrounding oil droplets and dirt particles, allowing them to be suspended in water so they can be washed away. It also helps create a stable mixture of oil and water in formulas, improving texture and cleansing performance.
Pros
Strong cleanser
Effectively removes excess oil, sebum, and water-resistant makeup, making it great for oily skin types.
Good foam
Produces a satisfying, rich lather that many people associate with a thorough clean.
Cons and cautions
Can be drying
May strip the skin's natural moisture barrier, leading to tightness, flakiness, or irritation, especially in dry or sensitive skin.
Irritation potential
At higher concentrations or with frequent use, it can cause mild redness or stinging, particularly around the eyes or on compromised skin.
Best for
- People with oily or combination skin who want a thorough cleanse
- Those who use rinse-off products and don't have sensitive skin
Use caution if
- Individuals with dry, dehydrated, or sensitive skin
- Anyone with eczema or a compromised skin barrier
Usage tips
Safety summary
PPG-3-Laureth-9 is generally considered safe for use in rinse-off cosmetics at typical concentrations. However, it can be drying or mildly irritating for sensitive or compromised skin. Avoid contact with eyes and prolonged skin contact.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel have evaluated alkyl ether sulfates and found them safe for use in cosmetics when formulated properly. However, individual sensitivity varies, and irritation is concentration-dependent.
Common label clues
- Typical concentration
- Typically 1–10% in rinse-off products; lower in leave-on formulas
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) at concentrations typically up to 10% in rinse-off products.
- Common uses
- Cleansers, Shampoos, Body washes, Facial washes
- Environmental note
- As a synthetic surfactant, it may not be fully biodegradable. Some formulations may contain ethoxylated compounds, which can raise environmental concerns.
Good to know
- PPG-3-Laureth-9 is often found in combination with other mild surfactants to reduce its potential for irritation.
- It is not typically used in sulfate-free formulas, but it is considered a milder alternative to sodium lauryl sulfate (SLS).
Common questions
What is PPG-3 Laureth-9 in beauty products?
PPG-3-Laureth-9 is a man-made ingredient that helps water and oil mix together in products like face washes and shampoos. It creates foam and lifts dirt and oil from your skin so they can be rinsed away. Because it's a surfactant (a kind of detergent), it can sometimes strip too much natural oil from the skin, leaving it feeling tight or dry, especially if you have sensitive or dry skin.
What does PPG-3 Laureth-9 do in a beauty product?
In a cosmetic product, PPG-3-Laureth-9 works by surrounding oil droplets and dirt particles, allowing them to be suspended in water so they can be washed away. It also helps create a stable mixture of oil and water in formulas, improving texture and cleansing performance.
Is PPG-3 Laureth-9 safe for most people?
PPG-3-Laureth-9 is generally considered safe for use in rinse-off cosmetics at typical concentrations. However, it can be drying or mildly irritating for sensitive or compromised skin. Avoid contact with eyes and prolonged skin contact.
Who should be careful with PPG-3 Laureth-9?
Individuals with dry, dehydrated, or sensitive skin Anyone with eczema or a compromised skin barrier
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.