Ingredient review
PEG/PPG-18/18 Laurate
INCI: PEG/PPG-18/18 Laurate
A reliable synthetic emulsifier that helps mix water and oil in products, but may not suit those avoiding PEGs.
In plain English
PEG/PPG-18/18 Laurate is a man-made ingredient that acts like a bridge between water and oil. In a lotion or cleanser, it stops the formula from separating into layers, so you get a smooth, consistent texture every time you use it. Think of it as a helper that keeps your product stable and easy to apply.
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/PPG-18/18 Laurate 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/PPG-18/18 Laurate.
- 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
A synthetic polymer made from polyethylene glycol (PEG) and polypropylene glycol (PPG) chains attached to lauric acid, a fatty acid from coconut or palm oil. It belongs to a class of ingredients called emulsifiers.
How it works
Its molecular structure has one end that attracts water and another that attracts oil. When shaken or mixed into a formula, it surrounds oil droplets and suspends them in water, creating a stable emulsion. This prevents separation and gives products a uniform feel.
Pros
Effective stabilizer
Keeps water and oil mixed so your product stays smooth and doesn't separate, even after months on the shelf.
Gentle on skin
Generally non-irritating and non-comedogenic, making it suitable for most skin types including sensitive skin.
Cons and cautions
Synthetic origin
Made from petrochemicals, which may be a turn-off if you prefer plant-based or natural ingredients.
Manufacturing concerns
Production can involve ethylene oxide, a potential carcinogen, but finished products are purified to very low levels that are considered safe by regulators.
Best for
- Anyone using standard moisturizers, cleansers, or sunscreens
- People who prefer stable, non-separating formulas
Use caution if
- Those specifically avoiding PEGs or synthetic ethoxylated ingredients
Usage tips
Safety summary
PEG/PPG-18/18 Laurate is considered safe for cosmetic use at typical concentrations. Regulatory bodies have reviewed PEG compounds and set purity limits to minimize any potential contaminants. Skin irritation and allergy are rare.
Research notes
There is limited direct research on this specific ingredient, but the broader class of PEG/PPG emulsifiers has been reviewed by the Cosmetic Ingredient Review panel, which concluded they are safe when formulated to meet purity standards. No significant human or animal toxicity has been reported at cosmetic use levels.
Common label clues
- Typical concentration
- Typically 0.5% to 5% of a formula
- Regulatory status
- Approved for use in cosmetics by the FDA and EU CosIng database. The Cosmetic Ingredient Review (CIR) panel has evaluated similar PEG compounds and found them safe at typical use levels.
- Common uses
- Cleansers, Moisturizers, Sunscreens, Makeup removers
- Environmental note
- As a synthetic polymer, it is not biodegradable and may persist in water systems. However, it is used in small amounts and wastewater treatment can remove many such compounds.
Good to know
- PEG/PPG-18/18 Laurate is often used in combination with other emulsifiers to fine-tune texture.
- It is not a preservative, so it won't affect product shelf life on its own.
Common questions
What is PEG/PPG-18/18 Laurate in beauty products?
PEG/PPG-18/18 Laurate is a man-made ingredient that acts like a bridge between water and oil. In a lotion or cleanser, it stops the formula from separating into layers, so you get a smooth, consistent texture every time you use it. Think of it as a helper that keeps your product stable and easy to apply.
What does PEG/PPG-18/18 Laurate do in a beauty product?
Its molecular structure has one end that attracts water and another that attracts oil. When shaken or mixed into a formula, it surrounds oil droplets and suspends them in water, creating a stable emulsion. This prevents separation and gives products a uniform feel.
Is PEG/PPG-18/18 Laurate safe for most people?
PEG/PPG-18/18 Laurate is considered safe for cosmetic use at typical concentrations. Regulatory bodies have reviewed PEG compounds and set purity limits to minimize any potential contaminants. Skin irritation and allergy are rare.
Who should be careful with PEG/PPG-18/18 Laurate?
Those specifically avoiding PEGs or synthetic 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.