Ingredient review
PEG-2 Laurate SE
INCI: PEG-2 Laurate SE
PEG-2 Laurate SE helps mix oil and water in creams and cleansers, but may be slightly irritating or pore-clogging for sensitive or acne-prone skin.
In plain English
PEG-2 Laurate SE is a helper ingredient that allows oil and water to blend together smoothly in products like lotions and cleansers. The 'SE' stands for self-emulsifying, meaning it can form a stable mixture on its own without extra emulsifiers. It is a semi-synthetic ingredient made from lauric acid (a fatty acid from coconut or palm oil) and polyethylene glycol (PEG), a petroleum-derived compound. While effective, it can be mildly irritating for some skin types and has a moderate chance of clogging pores.
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 moderate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- moderate
Quick decision guide
Useful, but context matters
PEG-2 Laurate SE can be useful, but watch for some irritation potential and possible clogging concerns.
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 PEG-2 Laurate SE.
- 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
moderateMay be fine for many users but deserves caution if you are breakout-prone.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
PEG-2 Laurate SE is a self-emulsifying surfactant derived from lauric acid and PEG-2 (a short-chain polyethylene glycol). It is used to stabilize oil-in-water emulsions, giving creams and lotions a smooth, uniform texture.
How it works
It reduces the surface tension between oil and water molecules, allowing them to mix into a stable emulsion. The 'self-emulsifying' property means it can create a fine dispersion without needing a separate co-emulsifier, making formulations simpler and more consistent.
Pros
Effective emulsifier
Stabilizes oil and water mixtures well, giving creams a smooth, non-greasy feel.
Self-emulsifying
Does not require extra emulsifiers, simplifying product formulations and reducing ingredient lists.
Cons and cautions
Potential irritant
Can cause stinging or redness on sensitive or damaged skin, especially in leave-on products.
Moderate comedogenic risk
Rated around 2–3 on the comedogenic scale, meaning it may clog pores for acne-prone individuals.
Best for
- People with normal to oily skin looking for stable, affordable creams
- Those using rinse-off products like cleansers or makeup removers
Use caution if
- Individuals with very sensitive, reactive, or eczema-prone skin
- Those who avoid PEG-derived ingredients for personal reasons
Usage tips
Safety summary
PEG-2 Laurate SE is considered safe for most people in rinse-off products at low concentrations. However, it has moderate irritation and comedogenic potential, so those with sensitive or acne-prone skin should use caution, especially in leave-on formulations.
Research notes
Limited direct studies on PEG-2 Laurate SE, but PEG-based emulsifiers are well-studied and generally safe. The Cosmetic Ingredient Review (CIR) panel has reviewed similar PEG compounds and found them safe for cosmetic use when properly formulated. The moderate comedogenic rating comes from anecdotal and historical rabbit-ear testing.
Common label clues
- Typical concentration
- Usually 1–5% of the formula
- Regulatory status
- Approved for use in cosmetics in the US, EU, and most major markets. The EU restricts PEG compounds with certain impurities, but PEG-2 Laurate SE is generally considered safe at typical use levels.
- Common uses
- Creams, Lotions, Cleansers, Makeup removers
- Environmental note
- Derived from both plant-based lauric acid (often palm oil) and petroleum-based PEG. Palm oil sourcing can impact deforestation; look for RSPO-certified palm derivatives if concerned.
Good to know
- The 'SE' distinguishes this from regular PEG-2 Laurate, which is not self-emulsifying and requires additional emulsifiers.
- PEG compounds can be contaminated with ethylene oxide or 1,4-dioxane during manufacturing, but reputable brands purify them to safe levels.
Common questions
What is PEG-2 Laurate SE in beauty products?
PEG-2 Laurate SE is a helper ingredient that allows oil and water to blend together smoothly in products like lotions and cleansers. The 'SE' stands for self-emulsifying, meaning it can form a stable mixture on its own without extra emulsifiers. It is a semi-synthetic ingredient made from lauric acid (a fatty acid from coconut or palm oil) and polyethylene glycol (PEG), a petroleum-derived compound. While effective, it can be mildly irritating for some skin types and has a moderate chance of clogging pores.
What does PEG-2 Laurate SE do in a beauty product?
It reduces the surface tension between oil and water molecules, allowing them to mix into a stable emulsion. The 'self-emulsifying' property means it can create a fine dispersion without needing a separate co-emulsifier, making formulations simpler and more consistent.
Is PEG-2 Laurate SE safe for most people?
PEG-2 Laurate SE is considered safe for most people in rinse-off products at low concentrations. However, it has moderate irritation and comedogenic potential, so those with sensitive or acne-prone skin should use caution, especially in leave-on formulations.
Who should be careful with PEG-2 Laurate SE?
Individuals with very sensitive, reactive, or eczema-prone skin Those who avoid PEG-derived ingredients for personal reasons
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.