Ingredient review
PPG-5 C9-15 Pareth-6
INCI: PPG-5 C9-15 Pareth-6
A gentle synthetic emulsifier that helps products rinse cleanly without stripping the skin.
In plain English
PPG-5 C9-15 Pareth-6 is a man-made ingredient that helps oil and water mix together in your cleansers and shampoos. It works like a gentle detergent, lifting dirt and makeup so they rinse away easily. Because it's designed to be mild, it's less likely to leave your skin feeling tight or dry compared to harsher cleansers.
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
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PPG-5 C9-15 Pareth-6 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 PPG-5 C9-15 Pareth-6.
- 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 synthetic polyethylene glycol (PEG) ether of a mixture of C9-15 alcohols, used primarily as a surfactant and emulsifier in personal care products.
How it works
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. This helps cleansers and shampoos effectively remove oils, dirt, and makeup while rinsing cleanly without leaving a heavy residue.
Pros
Gentle cleanser
Provides effective cleansing without stripping the skin's natural moisture barrier, making it suitable for daily use.
Improves product feel
Helps create a smooth, spreadable texture in cleansers and lotions, enhancing the user experience.
Cons and cautions
Synthetic origin
Derived from petrochemicals, which may be a concern for consumers seeking natural or organic formulations.
Potential irritation
At high concentrations, it may cause mild irritation in very sensitive or compromised skin.
Best for
- People with normal to combination skin looking for a gentle cleanser
- Anyone using rinse-off products like shampoos and body washes
Use caution if
- Those with known sensitivity to PEG compounds or synthetic surfactants
Usage tips
Safety summary
Generally recognized as safe for use in rinse-off cosmetics at typical concentrations. Low irritation and comedogenic potential. As with all surfactants, avoid contact with eyes.
Research notes
Limited peer-reviewed studies specific to this ingredient, but it belongs to a well-studied class of PEG ether surfactants with a long history of safe use in cosmetics. Safety assessments by industry panels support its use.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. No known restrictions at typical use levels.
- Common uses
- Cleansers, Shampoos, Conditioners, Body washes, Makeup removers
- Environmental note
- Synthetic surfactant; while biodegradable, its production relies on petrochemicals. Some manufacturers are moving toward bio-based alternatives.
Good to know
- PPG-5 C9-15 Pareth-6 is considered biodegradable under standard conditions
- It is often used in combination with other surfactants to balance cleansing power and mildness
Common questions
What is PPG-5 C9-15 Pareth-6 in beauty products?
PPG-5 C9-15 Pareth-6 is a man-made ingredient that helps oil and water mix together in your cleansers and shampoos. It works like a gentle detergent, lifting dirt and makeup so they rinse away easily. Because it's designed to be mild, it's less likely to leave your skin feeling tight or dry compared to harsher cleansers.
What does PPG-5 C9-15 Pareth-6 do in a beauty product?
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. This helps cleansers and shampoos effectively remove oils, dirt, and makeup while rinsing cleanly without leaving a heavy residue.
Is PPG-5 C9-15 Pareth-6 safe for most people?
Generally recognized as safe for use in rinse-off cosmetics at typical concentrations. Low irritation and comedogenic potential. As with all surfactants, avoid contact with eyes.
Who should be careful with PPG-5 C9-15 Pareth-6?
Those with known sensitivity to PEG compounds or synthetic surfactants
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.