Ingredient review
PEG-5 Trilauryl Citrate
INCI: PEG-5 TRILAURYL CITRATE
A gentle emulsifier that helps mix water and oil in skincare formulas, with a low risk of irritation.
In plain English
PEG-5 Trilauryl Citrate is a helper ingredient that allows water and oil to blend together smoothly in creams and lotions. It is made by combining citric acid (found in citrus fruits) with lauryl alcohol (from coconut or palm oil) and adding a small PEG chain to improve its mixing ability. In your skincare, it ensures the product stays stable and feels creamy rather than separating into watery and oily layers.
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
PEG-5 Trilauryl Citrate 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-5 Trilauryl Citrate.
- 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 semi-synthetic emulsifier created by esterifying citric acid with lauryl alcohol and then reacting it with ethylene oxide to add a short PEG chain. It belongs to the citrate ester family and is known for being mild on skin.
How it works
It reduces the surface tension between oil and water molecules, allowing them to form a stable emulsion. This means your lotion or cream stays mixed and delivers both water-soluble and oil-soluble ingredients evenly to your skin.
Pros
Gentle on skin
PEG-5 Trilauryl Citrate has a very low irritation risk, making it a good choice for sensitive skin formulas.
Effective emulsifier
It reliably blends oil and water, giving creams and lotions a smooth, stable texture that feels pleasant on the skin.
Cons and cautions
Potential trace impurities
As a PEG compound, it may contain tiny amounts of ethylene oxide or 1,4-dioxane, though reputable brands keep these below safety limits.
Not fully natural
It is semi-synthetic, so it may not appeal to those seeking 100% natural or biodegradable ingredients.
Best for
- Anyone looking for a gentle, non-irritating moisturizer or cleanser
- People with sensitive or reactive skin who tolerate mild emulsifiers well
Use caution if
- Individuals with a known allergy or sensitivity to PEG compounds (rare)
Usage tips
Safety summary
PEG-5 Trilauryl Citrate is considered safe for use in cosmetics at typical concentrations. The main concern is potential trace impurities from PEG manufacturing, but these are tightly regulated and kept to very low levels in quality products. It is non-irritating and non-comedogenic for most people.
Research notes
Safety assessments of PEG citrate esters generally find them to be mild and low-risk. The Cosmetic Ingredient Review (CIR) panel has reviewed similar PEG compounds and found them safe as used. Specific studies on PEG-5 Trilauryl Citrate are limited, but its chemical relatives are well-tolerated.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions. The PEG chain length (5) is short, which generally reduces the risk of contamination compared to longer PEGs.
- Common uses
- Cleansers, Moisturizers, Lotions, Creams
- Environmental note
- The PEG component may not be fully biodegradable in all environments, but the citrate and lauryl parts are derived from renewable sources.
Good to know
- PEG-5 Trilauryl Citrate is often used in combination with other emulsifiers to create a more stable emulsion.
- It is considered a mild alternative to harsher surfactants like sodium lauryl sulfate.
Common questions
What is PEG-5 Trilauryl Citrate in beauty products?
PEG-5 Trilauryl Citrate is a helper ingredient that allows water and oil to blend together smoothly in creams and lotions. It is made by combining citric acid (found in citrus fruits) with lauryl alcohol (from coconut or palm oil) and adding a small PEG chain to improve its mixing ability. In your skincare, it ensures the product stays stable and feels creamy rather than separating into watery and oily layers.
What does PEG-5 Trilauryl Citrate do in a beauty product?
It reduces the surface tension between oil and water molecules, allowing them to form a stable emulsion. This means your lotion or cream stays mixed and delivers both water-soluble and oil-soluble ingredients evenly to your skin.
Is PEG-5 Trilauryl Citrate safe for most people?
PEG-5 Trilauryl Citrate is considered safe for use in cosmetics at typical concentrations. The main concern is potential trace impurities from PEG manufacturing, but these are tightly regulated and kept to very low levels in quality products. It is non-irritating and non-comedogenic for most people.
Who should be careful with PEG-5 Trilauryl Citrate?
Individuals with a known allergy or sensitivity to PEG compounds (rare)
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.