Ingredient review
PEG-80 Hydrogenated Castor Oil
INCI: PEG-80 Hydrogenated Castor Oil
A gentle, plant-based emulsifier that helps rinse away oil and makeup without stripping the skin.
In plain English
PEG-80 Hydrogenated Castor Oil is a semi-synthetic ingredient made from castor oil. It acts like a bridge between oil and water, allowing cleansers to remove makeup, sunscreen, and excess sebum without leaving a greasy film. The 'PEG-80' part means it has been processed with ethylene oxide to make it water-friendly, but it remains very mild on skin.
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-80 Hydrogenated Castor Oil 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-80 Hydrogenated Castor Oil.
- 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 polyethylene glycol (PEG) derivative of hydrogenated castor oil, used as a non-ionic surfactant and emulsifier in personal care products.
How it works
It reduces the surface tension between oil and water, allowing them to mix into a stable emulsion. In cleansers, it helps lift and suspend oils and dirt so they can be rinsed away easily.
Pros
Gentle cleanser
Removes oil and makeup effectively without stripping the skin's natural moisture barrier.
Plant-derived base
Made from castor oil, a renewable plant source, making it a more natural-feeling option among emulsifiers.
Cons and cautions
PEG processing concerns
The manufacturing process can create trace impurities like 1,4-dioxane, though reputable brands ensure purification to safe levels.
Not for PEG-free routines
If you specifically avoid PEG ingredients, this won't fit your preferences.
Best for
- People with normal to oily skin looking for a gentle cleanser
- Anyone who wears makeup or sunscreen and wants effective removal without harshness
Use caution if
- Those with known sensitivity to PEG compounds or castor oil derivatives
Usage tips
Safety summary
PEG-80 Hydrogenated Castor Oil is considered safe for cosmetic use. The main concern is potential trace contamination with 1,4-dioxane, but regulatory limits and purification steps keep levels well below safety thresholds. It is non-irritating and non-comedogenic for most skin types.
Research notes
The Cosmetic Ingredient Review (CIR) panel has evaluated PEG derivatives of hydrogenated castor oil and concluded they are safe as used in cosmetics. No significant human or animal studies indicate irritation or sensitization at typical concentrations.
Common label clues
- Typical concentration
- 1–10% in rinse-off products; lower in leave-on formulas
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. The CIR panel has deemed it safe as used in rinse-off and leave-on products.
- Common uses
- Cleansers, Makeup removers, Facial washes, Shampoos, Body washes
- Environmental note
- Castor oil is a renewable resource, but the PEG processing involves ethylene oxide, which has environmental considerations. Overall, it is considered biodegradable.
Good to know
- PEG-80 Hydrogenated Castor Oil is considered safe by the Cosmetic Ingredient Review (CIR) panel at typical use concentrations.
- It is often used in 'oil cleansers' that turn milky when mixed with water.
Common questions
What is PEG-80 Hydrogenated Castor Oil in beauty products?
PEG-80 Hydrogenated Castor Oil is a semi-synthetic ingredient made from castor oil. It acts like a bridge between oil and water, allowing cleansers to remove makeup, sunscreen, and excess sebum without leaving a greasy film. The 'PEG-80' part means it has been processed with ethylene oxide to make it water-friendly, but it remains very mild on skin.
What does PEG-80 Hydrogenated Castor Oil do in a beauty product?
It reduces the surface tension between oil and water, allowing them to mix into a stable emulsion. In cleansers, it helps lift and suspend oils and dirt so they can be rinsed away easily.
Is PEG-80 Hydrogenated Castor Oil safe for most people?
PEG-80 Hydrogenated Castor Oil is considered safe for cosmetic use. The main concern is potential trace contamination with 1,4-dioxane, but regulatory limits and purification steps keep levels well below safety thresholds. It is non-irritating and non-comedogenic for most skin types.
Who should be careful with PEG-80 Hydrogenated Castor Oil?
Those with known sensitivity to PEG compounds or castor oil derivatives
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.