Ingredient review
PEG-14 Oleate
INCI: PEG-14 Oleate
PEG-14 Oleate is a safe, widely used emulsifier that helps mix oil and water in cleansers and creams, but may be best avoided by those with very sensitive or compromised skin.
In plain English
PEG-14 Oleate is a synthetic ingredient that acts like a bridge between oil and water. In a lotion or cleanser, it keeps the formula from separating into layers. It's made by combining a fatty acid from oils (oleic acid) with polyethylene glycol (PEG), a common emulsifier building block. While generally considered safe, some people prefer to avoid PEG compounds due to concerns about potential contamination during manufacturing.
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-14 Oleate 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-14 Oleate.
- 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-14 Oleate is a polyethylene glycol (PEG) derivative of oleic acid, a fatty acid found naturally in olive oil and other plant oils. It is a synthetic emulsifier created through a chemical reaction that attaches 14 units of ethylene glycol to oleic acid.
How it works
In a cosmetic product, PEG-14 Oleate reduces the surface tension between oil and water, allowing them to mix into a stable emulsion. This prevents the product from separating into an oily layer and a watery layer. It also helps cleansers and makeup removers dissolve and rinse away oils and dirt from the skin.
Pros
Effective emulsifier
PEG-14 Oleate reliably blends oil and water, giving creams and cleansers a smooth, uniform texture that doesn't separate on the shelf.
Low irritation risk
At typical concentrations, it is considered very low-irritating for most skin types, making it a common choice in gentle cleansers.
Cons and cautions
Potential contamination concern
Like all PEG compounds, PEG-14 Oleate can be contaminated with trace amounts of 1,4-dioxane during manufacturing. Reputable brands purify their ingredients to meet safety limits, but this is a known concern for some consumers.
Not ideal for compromised skin
If your skin barrier is damaged or you have active eczema, even mild surfactants can cause stinging or dryness. You may prefer a gentler, non-PEG emulsifier.
Best for
- People who use standard cleansers, lotions, or makeup removers
- Those looking for stable, well-mixed formulas without separation
Use caution if
- Individuals with very sensitive, eczema-prone, or broken skin who prefer minimal synthetic emulsifiers
Usage tips
Safety summary
PEG-14 Oleate is considered safe for use in cosmetics at typical concentrations. The main safety concern is potential contamination with 1,4-dioxane, a byproduct of PEG manufacturing. Reputable manufacturers purify the ingredient to meet strict regulatory limits (under 10 ppm). For most people, it poses a very low risk of irritation or clogged pores.
Research notes
Research on PEG-14 Oleate specifically is limited, but the broader class of PEG emulsifiers has been reviewed by the Cosmetic Ingredient Review (CIR) panel, which found them safe for cosmetic use when formulated properly. Studies show that PEG compounds can be mild irritants on damaged skin, but are well-tolerated on intact skin.
Common label clues
- Typical concentration
- Typically 1–5% of the formula
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other countries. The FDA and EU CosIng database list PEG compounds as safe when used as directed and when residual 1,4-dioxane is kept below 10 ppm (parts per million).
- Common uses
- Cleansers, Makeup removers, Lotions, Creams
- Environmental note
- PEG compounds are generally biodegradable, but their production relies on petrochemicals. Some consumers prefer plant-derived emulsifiers for environmental reasons.
Good to know
- PEG-14 Oleate is not a preservative; it is purely an emulsifier and surfactant.
- The number '14' refers to the average number of ethylene glycol units, which affects how water- or oil-loving the molecule is.
- It is not the same as pure oleic acid, which can be comedogenic in high amounts.
Common questions
What is PEG-14 Oleate in beauty products?
PEG-14 Oleate is a synthetic ingredient that acts like a bridge between oil and water. In a lotion or cleanser, it keeps the formula from separating into layers. It's made by combining a fatty acid from oils (oleic acid) with polyethylene glycol (PEG), a common emulsifier building block. While generally considered safe, some people prefer to avoid PEG compounds due to concerns about potential contamination during manufacturing.
What does PEG-14 Oleate do in a beauty product?
In a cosmetic product, PEG-14 Oleate reduces the surface tension between oil and water, allowing them to mix into a stable emulsion. This prevents the product from separating into an oily layer and a watery layer. It also helps cleansers and makeup removers dissolve and rinse away oils and dirt from the skin.
Is PEG-14 Oleate safe for most people?
PEG-14 Oleate is considered safe for use in cosmetics at typical concentrations. The main safety concern is potential contamination with 1,4-dioxane, a byproduct of PEG manufacturing. Reputable manufacturers purify the ingredient to meet strict regulatory limits (under 10 ppm). For most people, it poses a very low risk of irritation or clogged pores.
Who should be careful with PEG-14 Oleate?
Individuals with very sensitive, eczema-prone, or broken skin who prefer minimal synthetic emulsifiers
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.