Ingredient review
PEG-20 Diricinoleate
INCI: PEG-20 Diricinoleate
A gentle synthetic emulsifier that helps mix oil and water in cleansers and creams, generally well-tolerated by most skin types.
In plain English
PEG-20 Diricinoleate is a man-made ingredient that helps oil and water stay mixed together in products like cleansers and lotions. It is a type of emulsifier, which means it prevents the product from separating into layers. It is considered mild and is often used in gentle cleansing formulas.
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-20 Diricinoleate 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-20 Diricinoleate.
- 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-20 Diricinoleate is a polyethylene glycol (PEG) derivative of diricinoleic acid, a fatty acid from castor oil. It is a synthetic emulsifier that reduces surface tension between oil and water, allowing them to blend into a stable, uniform mixture.
How it works
In a cosmetic product, PEG-20 Diricinoleate sits at the boundary between oil and water droplets, lowering the surface tension so they can mix without separating. This creates a smooth, consistent texture in creams, lotions, and cleansers, and helps the product spread evenly on the skin.
Pros
Effective emulsifier
It reliably blends oil and water, preventing separation and giving products a smooth, consistent feel.
Low irritation potential
Compared to some other emulsifiers, PEG-20 Diricinoleate is considered mild and is unlikely to cause stinging or redness for most users.
Cons and cautions
Synthetic origin
It is not a natural ingredient, which may be a drawback for those seeking plant-based or minimal-ingredient routines.
Manufacturing impurities
PEG compounds can contain trace impurities like 1,4-dioxane if not properly purified, though reputable manufacturers follow safety standards.
Best for
- People with normal to dry skin looking for gentle cleansers or moisturizers
- Anyone who wants stable, well-mixed skincare products
Use caution if
- Those with known sensitivity to PEG compounds or who prefer 100% natural ingredient lists
Usage tips
Safety summary
PEG-20 Diricinoleate is considered safe for use in cosmetics at typical concentrations. The main safety concern is potential contamination with 1,4-dioxane, but reputable manufacturers control for this. It is non-irritating and non-comedogenic for most people.
Research notes
There is limited direct research on PEG-20 Diricinoleate specifically, but PEG-based emulsifiers as a class are well-studied and considered safe by regulatory bodies like the Cosmetic Ingredient Review (CIR) panel. The CIR has reviewed PEG compounds and found them safe when formulated to meet purity standards.
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 regions, subject to purity standards for PEG compounds.
- Common uses
- Cleansers, Lotions, Creams, Makeup removers
- Environmental note
- PEG compounds are generally biodegradable, but their synthetic origin means they are not renewable. Manufacturing processes can have environmental impacts.
Good to know
- PEG-20 Diricinoleate is often found in 'micellar' water-type cleansers
- It is not the same as pure castor oil and has different properties
Common questions
What is PEG-20 Diricinoleate in beauty products?
PEG-20 Diricinoleate is a man-made ingredient that helps oil and water stay mixed together in products like cleansers and lotions. It is a type of emulsifier, which means it prevents the product from separating into layers. It is considered mild and is often used in gentle cleansing formulas.
What does PEG-20 Diricinoleate do in a beauty product?
In a cosmetic product, PEG-20 Diricinoleate sits at the boundary between oil and water droplets, lowering the surface tension so they can mix without separating. This creates a smooth, consistent texture in creams, lotions, and cleansers, and helps the product spread evenly on the skin.
Is PEG-20 Diricinoleate safe for most people?
PEG-20 Diricinoleate is considered safe for use in cosmetics at typical concentrations. The main safety concern is potential contamination with 1,4-dioxane, but reputable manufacturers control for this. It is non-irritating and non-comedogenic for most people.
Who should be careful with PEG-20 Diricinoleate?
Those with known sensitivity to PEG compounds or who prefer 100% natural ingredient lists
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.