Ingredient review
PEG-24 Hydrogenated Lanolin
INCI: PEG-24 Hydrogenated Lanolin
A gentle, water-soluble lanolin derivative that helps blend oil and water in formulas while softening skin, but may not suit those with wool-wax allergies.
In plain English
PEG-24 Hydrogenated Lanolin is a modified version of lanolin (the natural oil from sheep's wool) that has been treated to make it dissolve in water. In skincare, it acts like a bridge between oil and water, helping ingredients mix smoothly and leaving skin feeling soft and hydrated without a greasy residue.
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-24 Hydrogenated Lanolin 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-24 Hydrogenated Lanolin.
- 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 ingredient created by reacting hydrogenated lanolin with ethylene oxide (PEG-24). This process makes the originally waxy lanolin water-soluble and easier to rinse off, while retaining its skin-softening properties.
How it works
It works as an emulsifier, meaning it helps oil and water blend into a stable cream or lotion. It also forms a thin, non-occlusive film on the skin that reduces water loss (transepidermal water loss, or TEWL) and leaves a smooth, conditioned feel.
Pros
Water-soluble softener
Unlike plain lanolin, this version rinses off easily and won't leave a heavy, sticky film, making it more pleasant in lotions and cleansers.
Gentle emulsifier
It helps create stable, smooth creams without requiring high heat or complex processing, which benefits both formulators and the final product feel.
Cons and cautions
Allergy risk for some
People with wool-wax or lanolin allergies may still react to this derivative, so patch testing is recommended before widespread use.
Ethoxylation concerns
The manufacturing process can generate trace amounts of 1,4-dioxane, a potential contaminant. Reputable suppliers purify the ingredient to safe levels, but it's a consideration for sensitive consumers.
Best for
- People with normal to dry skin looking for a gentle emulsifier
- Those who want a water-soluble alternative to plain lanolin
Use caution if
- Individuals with known allergies to lanolin or wool alcohols
- Those seeking strictly natural or non-ethoxylated ingredients
Usage tips
Safety summary
PEG-24 Hydrogenated Lanolin is generally recognized as safe for topical use at typical concentrations. The main risk is allergic reaction in individuals sensitive to lanolin. Purified grades minimize potential impurities from ethoxylation.
Research notes
Studies on PEGylated lanolin derivatives show they are effective emulsifiers with low irritation potential. The CIR panel reviewed data and concluded these ingredients are safe when formulated to meet purity standards.
Common label clues
- Typical concentration
- 1–10%
- Regulatory status
- Approved for use in cosmetics in the US (FDA), EU (CosIng), and many other regions. The Cosmetic Ingredient Review (CIR) panel has deemed PEGylated lanolin derivatives safe as used in cosmetics.
- Common uses
- Moisturizers, Cleansers, Hair conditioners, Makeup removers
- Environmental note
- Lanolin is a byproduct of wool production, making it a renewable resource. However, the ethoxylation process involves synthetic chemistry and energy use, so it is not fully natural.
Good to know
- PEG-24 Hydrogenated Lanolin is considered non-comedogenic for most skin types
- It is often used in hypoallergenic formulas because it is less irritating than plain lanolin
Common questions
What is PEG-24 Hydrogenated Lanolin in beauty products?
PEG-24 Hydrogenated Lanolin is a modified version of lanolin (the natural oil from sheep's wool) that has been treated to make it dissolve in water. In skincare, it acts like a bridge between oil and water, helping ingredients mix smoothly and leaving skin feeling soft and hydrated without a greasy residue.
What does PEG-24 Hydrogenated Lanolin do in a beauty product?
It works as an emulsifier, meaning it helps oil and water blend into a stable cream or lotion. It also forms a thin, non-occlusive film on the skin that reduces water loss (transepidermal water loss, or TEWL) and leaves a smooth, conditioned feel.
Is PEG-24 Hydrogenated Lanolin safe for most people?
PEG-24 Hydrogenated Lanolin is generally recognized as safe for topical use at typical concentrations. The main risk is allergic reaction in individuals sensitive to lanolin. Purified grades minimize potential impurities from ethoxylation.
Who should be careful with PEG-24 Hydrogenated Lanolin?
Individuals with known allergies to lanolin or wool alcohols Those seeking strictly natural or non-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.