Ingredient review
PEG-150 Dilaurate
INCI: PEG-150 Dilaurate
A safe, widely used synthetic thickener and emulsifier that helps products feel smooth and spread evenly, but may be too heavy for very oily or acne-prone skin in high concentrations.
In plain English
PEG-150 Dilaurate is a man-made ingredient that helps mix oil and water in your skincare products so they don't separate. It also makes the product thicker and more spreadable, so you get a nice, creamy texture. Think of it as the ingredient that keeps your lotion or cleanser from being watery or greasy.
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
PEG-150 Dilaurate 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 PEG-150 Dilaurate.
- 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
PEG-150 Dilaurate is a synthetic polymer made from polyethylene glycol (PEG) and lauric acid (a fatty acid from coconut or palm oil). It belongs to a class of ingredients called PEGs, which are widely used in cosmetics as emulsifiers, thickeners, and surfactants.
How it works
In a cosmetic formula, PEG-150 Dilaurate acts as an emulsifier, meaning it helps oil and water blend together into a stable, uniform mixture. It also increases the viscosity (thickness) of the product, giving it a rich, creamy feel that spreads easily on the skin or hair.
Pros
Stable emulsions
PEG-150 Dilaurate keeps oil and water mixed together, so your product stays smooth and doesn't separate over time.
Pleasant texture
It gives products a thick, creamy feel that glides onto skin without being sticky or greasy.
Cons and cautions
May feel heavy for oily skin
In leave-on products, high levels can feel too rich or occlusive for people with very oily or acne-prone skin.
Synthetic origin
As a PEG compound, it is not natural, which may be a concern for those seeking plant-based or minimal-ingredient routines.
Best for
- Anyone looking for a stable, creamy cleanser or lotion
- People with normal to dry skin who enjoy rich textures
Use caution if
- Those with very oily or acne-prone skin may want to avoid high concentrations in leave-on products
Usage tips
Safety summary
PEG-150 Dilaurate has a strong safety profile in cosmetics. It is not a known irritant, sensitizer, or comedogen at typical use levels. However, as with any ingredient, individuals with very sensitive skin should patch test new products.
Research notes
Research on PEG compounds supports their safety in cosmetics. The Cosmetic Ingredient Review (CIR) has evaluated PEGs and concluded they are safe when formulated to meet purity standards. No significant toxicity or irritation concerns have been identified for PEG-150 Dilaurate specifically.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics by the FDA and the European Commission. The Cosmetic Ingredient Review (CIR) panel has reviewed PEG compounds and found them safe at typical use levels.
- Common uses
- Cleansers, Shampoos, Body washes, Lotions, Creams
- Environmental note
- PEG-150 Dilaurate is synthetic and not readily biodegradable, though it is used in low concentrations and is generally considered low risk in aquatic environments.
Good to know
- PEG-150 Dilaurate is considered safe by major regulatory bodies when used as directed in cosmetics.
- The '150' refers to the number of ethylene glycol units in the polymer chain, which affects its thickening ability.
Common questions
What is PEG-150 Dilaurate in beauty products?
PEG-150 Dilaurate is a man-made ingredient that helps mix oil and water in your skincare products so they don't separate. It also makes the product thicker and more spreadable, so you get a nice, creamy texture. Think of it as the ingredient that keeps your lotion or cleanser from being watery or greasy.
What does PEG-150 Dilaurate do in a beauty product?
In a cosmetic formula, PEG-150 Dilaurate acts as an emulsifier, meaning it helps oil and water blend together into a stable, uniform mixture. It also increases the viscosity (thickness) of the product, giving it a rich, creamy feel that spreads easily on the skin or hair.
Is PEG-150 Dilaurate safe for most people?
PEG-150 Dilaurate has a strong safety profile in cosmetics. It is not a known irritant, sensitizer, or comedogen at typical use levels. However, as with any ingredient, individuals with very sensitive skin should patch test new products.
Who should be careful with PEG-150 Dilaurate?
Those with very oily or acne-prone skin may want to avoid high concentrations in leave-on products
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.