Ingredient review
Laureth-2
INCI: Laureth-2
A gentle surfactant that helps blend oil and water, making it a common but mild cleansing ingredient.
In plain English
Laureth-2 is a mild cleansing agent that helps mix oil and water so that products like cleansers and shampoos can remove dirt and oil without being harsh. It is less irritating than many other surfactants, making it suitable for sensitive 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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Laureth-2 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-2.
- 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-2 is a semi-synthetic surfactant made by reacting lauryl alcohol (from coconut or palm oil) with ethylene oxide. It belongs to the laureth family, known for their gentle cleansing properties.
How it works
It reduces the surface tension between oil and water, allowing them to mix. This helps lift dirt, oil, and makeup from the skin so they can be rinsed away. It also helps stabilize emulsions, keeping products smooth and consistent.
Pros
Gentle on skin
Laureth-2 is much milder than traditional sulfates, making it suitable for daily use without causing dryness or irritation.
Effective emulsifier
It helps blend oil and water phases, creating stable, creamy textures that feel luxurious on the skin.
Cons and cautions
Potential trace impurity
As an ethoxylated ingredient, it may contain trace amounts of 1,4-dioxane, a possible carcinogen, though reputable manufacturers purify it to safe levels.
Sustainability concerns
Often derived from palm oil, which can be linked to deforestation unless certified sustainable.
Best for
- People with normal to dry skin
- Those looking for a gentle, non-stripping cleanser
Use caution if
- Individuals with known sensitivity to ethoxylated ingredients
Usage tips
Safety summary
Laureth-2 is considered safe for use in cosmetics at typical concentrations. The main concern is trace 1,4-dioxane from the ethoxylation process, but reputable manufacturers purify the ingredient to meet safety standards. It is generally non-irritating and non-comedogenic.
Research notes
Studies show laureth-2 is a mild surfactant with low irritation potential. The Cosmetic Ingredient Review (CIR) panel has evaluated laureth compounds and found them safe for use in rinse-off and leave-on products at typical levels.
Common label clues
- Typical concentration
- 1% to 5% in rinse-off products; lower in leave-on formulas
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions, with concentration limits for leave-on products.
- Common uses
- Cleansers, Shampoos, Body washes, Emulsions
- Environmental note
- May be derived from palm oil; look for RSPO-certified or sustainably sourced versions to reduce environmental impact.
Good to know
- Laureth-2 is often used in combination with other surfactants to boost foam and mildness.
- It is considered safe by cosmetic safety panels at typical use levels.
Common questions
What is Laureth-2 in beauty products?
Laureth-2 is a mild cleansing agent that helps mix oil and water so that products like cleansers and shampoos can remove dirt and oil without being harsh. It is less irritating than many other surfactants, making it suitable for sensitive skin.
What does Laureth-2 do in a beauty product?
It reduces the surface tension between oil and water, allowing them to mix. This helps lift dirt, oil, and makeup from the skin so they can be rinsed away. It also helps stabilize emulsions, keeping products smooth and consistent.
Is Laureth-2 safe for most people?
Laureth-2 is considered safe for use in cosmetics at typical concentrations. The main concern is trace 1,4-dioxane from the ethoxylation process, but reputable manufacturers purify the ingredient to meet safety standards. It is generally non-irritating and non-comedogenic.
Who should be careful with Laureth-2?
Individuals with known sensitivity to ethoxylated ingredients
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.