Ingredient review
Poloxamer 123
INCI: Poloxamer 123
A mild synthetic emulsifier that helps mix oil and water in cleansers and lotions, with a low irritation profile.
In plain English
Poloxamer 123 is a synthetic ingredient that acts like a bridge between oil and water. In skincare, it helps blend ingredients that normally don't mix, like oils and water, so your cleanser or lotion stays smooth and doesn't separate. It also helps reduce surface tension, making it easier to rinse away dirt and makeup without stripping your 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
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Poloxamer 123 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 Poloxamer 123.
- 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
Poloxamer 123 is a nonionic surfactant and emulsifier made from ethylene oxide and propylene oxide. It belongs to the poloxamer family, known for their mildness and versatility in cosmetic formulations.
How it works
It works by lowering the surface tension between oil and water, allowing them to form a stable mixture. In cleansers, it helps lift dirt and oil from the skin so they can be rinsed away. In lotions, it keeps the formula uniform and prevents separation.
Pros
Gentle cleanser
Poloxamer 123 is known for being mild on the skin, making it suitable for daily use without causing irritation or stripping natural oils.
Formula stabilizer
It helps keep oil and water mixed together, so your product stays smooth and effective from first use to last.
Cons and cautions
Synthetic origin
It is made in a lab, which may be a turn-off for people who prefer naturally derived ingredients in their skincare.
Potential dryness at high levels
In very high concentrations, it can be slightly drying for those with already dry or compromised skin.
Best for
- Anyone using cleansers or lotions who wants a stable, effective formula
- People with normal to oily skin looking for a gentle cleanser
Use caution if
- Those who strictly avoid synthetic ingredients
- Very dry or sensitive skin may prefer even milder alternatives like coco-glucoside
Usage tips
Safety summary
Poloxamer 123 has a strong safety profile with low irritation and sensitization potential. It is widely used in personal care and pharmaceutical products, including eye drops and contact lens solutions.
Research notes
Studies show poloxamers are well-tolerated on skin and eyes. They are non-toxic at cosmetic concentrations and have been reviewed by safety panels like the Cosmetic Ingredient Review (CIR).
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. Generally recognized as safe when used as directed.
- Common uses
- Cleansers, Shampoos, Body washes, Lotions, Serums
- Environmental note
- Poloxamers are biodegradable under standard conditions, though their synthetic origin means they are not derived from renewable resources.
Good to know
- Poloxamer 123 is part of a family of ingredients often used in contact lens solutions due to their mildness
- It is biodegradable and considered safe for the environment at typical use levels
Common questions
What is Poloxamer 123 in beauty products?
Poloxamer 123 is a synthetic ingredient that acts like a bridge between oil and water. In skincare, it helps blend ingredients that normally don't mix, like oils and water, so your cleanser or lotion stays smooth and doesn't separate. It also helps reduce surface tension, making it easier to rinse away dirt and makeup without stripping your skin.
What does Poloxamer 123 do in a beauty product?
It works by lowering the surface tension between oil and water, allowing them to form a stable mixture. In cleansers, it helps lift dirt and oil from the skin so they can be rinsed away. In lotions, it keeps the formula uniform and prevents separation.
Is Poloxamer 123 safe for most people?
Poloxamer 123 has a strong safety profile with low irritation and sensitization potential. It is widely used in personal care and pharmaceutical products, including eye drops and contact lens solutions.
Who should be careful with Poloxamer 123?
Those who strictly avoid synthetic ingredients Very dry or sensitive skin may prefer even milder alternatives like coco-glucoside
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.