Ingredient review
Laureth-7 Phosphate
INCI: LAURETH-7 PHOSPHATE
A gentle surfactant that helps cleanse without stripping the skin, but may not suit those avoiding ethoxylated ingredients.
In plain English
Laureth-7 Phosphate is a cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. It is considered milder than traditional sulfates, making it a common choice in gentle cleansers. The 'Laureth' part means it has been processed with ethylene oxide, which some people prefer to avoid due to potential trace impurities, though cosmetic-grade versions are highly purified.
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
Laureth-7 Phosphate 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 Laureth-7 Phosphate.
- 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
Laureth-7 Phosphate is a semi-synthetic surfactant and emulsifier. It is made by reacting lauryl alcohol (from coconut or palm oil) with ethylene oxide to create laureth-7, which is then phosphorylated. It helps reduce surface tension so that oils and water can mix, aiding in cleansing and product stability.
How it works
In a cosmetic product, Laureth-7 Phosphate works by surrounding oil and dirt particles, allowing them to be lifted away from the skin and rinsed off with water. As an emulsifier, it also helps keep oil and water phases blended in a formula, preventing separation.
Pros
Gentle on skin
Laureth-7 Phosphate is less stripping than traditional sulfates like SLS, making it a good choice for daily cleansing without disrupting the skin barrier.
Effective emulsifier
It helps keep oil and water mixed in a formula, ensuring a consistent texture and performance from first use to last.
Cons and cautions
Ethoxylation concerns
The manufacturing process can produce trace amounts of 1,4-dioxane, a potential carcinogen, though reputable brands purify their ingredients to meet safety standards.
Environmental persistence
Some ethoxylated surfactants may not break down quickly in the environment, which is a consideration for eco-conscious consumers.
Best for
- People with normal to dry skin looking for a gentle cleanser
- Those who prefer sulfate-free cleansing options
Use caution if
- Individuals who strictly avoid any ethoxylated ingredients due to personal preference or environmental concerns
Usage tips
Safety summary
Laureth-7 Phosphate is considered safe for use in cosmetics at typical concentrations. The main concern is potential trace contamination from the ethoxylation process, but cosmetic-grade ingredients are purified to minimize this risk. Regulatory bodies like the Cosmetic Ingredient Review (CIR) have evaluated similar ethoxylated ingredients and found them safe when formulated properly.
Research notes
Studies on ethoxylated surfactants indicate low acute toxicity and skin irritation at typical use levels. The CIR has reviewed related laureth compounds and concluded they are safe in rinse-off and leave-on products when used as intended. No specific long-term human studies are available for Laureth-7 Phosphate alone, but the class of ingredients is well-established.
Common label clues
- Typical concentration
- Typically 1–10% in rinse-off products, lower in leave-on formulas
- Regulatory status
- Approved for use in cosmetics globally, including by the FDA (US) and EU CosIng database, with concentration limits typically self-regulated by industry safety guidelines.
- Common uses
- Cleansers, Facial washes, Shampoos, Body washes
- Environmental note
- As a semi-synthetic surfactant, its biodegradability varies; some formulations may persist longer in aquatic environments compared to purely natural alternatives.
Good to know
- Laureth-7 Phosphate is often used in 'sulfate-free' formulas as a milder alternative.
- The '7' refers to the average number of ethylene oxide units, which influences its water solubility and mildness.
Common questions
What is Laureth-7 Phosphate in beauty products?
Laureth-7 Phosphate is a cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. It is considered milder than traditional sulfates, making it a common choice in gentle cleansers. The 'Laureth' part means it has been processed with ethylene oxide, which some people prefer to avoid due to potential trace impurities, though cosmetic-grade versions are highly purified.
What does Laureth-7 Phosphate do in a beauty product?
In a cosmetic product, Laureth-7 Phosphate works by surrounding oil and dirt particles, allowing them to be lifted away from the skin and rinsed off with water. As an emulsifier, it also helps keep oil and water phases blended in a formula, preventing separation.
Is Laureth-7 Phosphate safe for most people?
Laureth-7 Phosphate is considered safe for use in cosmetics at typical concentrations. The main concern is potential trace contamination from the ethoxylation process, but cosmetic-grade ingredients are purified to minimize this risk. Regulatory bodies like the Cosmetic Ingredient Review (CIR) have evaluated similar ethoxylated ingredients and found them safe when formulated properly.
Who should be careful with Laureth-7 Phosphate?
Individuals who strictly avoid any ethoxylated ingredients due to personal preference or environmental concerns
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.