Ingredient review
PEG-30 Lanolin
INCI: PEG-30 Lanolin
PEG-30 Lanolin is a water-friendly version of lanolin that softens skin and helps blend oil and water in formulas, but it may clog pores for some people.
In plain English
PEG-30 Lanolin is a modified form of lanolin, the natural oil from sheep's wool. By adding PEG (polyethylene glycol) chains, manufacturers make lanolin water-soluble so it rinses off easily and mixes well in creams and cleansers. It works as an emollient, meaning it softens and smooths the skin by filling in gaps between skin cells, and as an emulsifier, helping oil and water ingredients stay blended. Because it's derived from lanolin, it carries a moderate risk of clogging pores (comedogenicity) and may cause reactions in people with wool allergies.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is low; clogging risk is moderate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- moderate
Quick decision guide
Useful, but context matters
PEG-30 Lanolin can be useful, but watch for possible clogging concerns.
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-30 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
moderateMay be fine for many users but deserves caution if you are breakout-prone.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
PEG-30 Lanolin is a semi-synthetic ingredient created by reacting lanolin (a waxy substance from sheep's wool) with ethylene oxide to add 30 units of PEG. This process makes the normally water-repellent lanolin water-soluble and easier to formulate into rinse-off and leave-on products.
How it works
In a cosmetic product, PEG-30 Lanolin acts as both an emollient and an emulsifier. As an emollient, it deposits a thin, non-greasy film on the skin that reduces water loss and leaves skin feeling soft. As an emulsifier, it helps stabilize mixtures of oil and water, preventing separation and ensuring a smooth, uniform texture.
Pros
Water-soluble emollient
Unlike natural lanolin, PEG-30 Lanolin dissolves in water, making it easy to rinse off and ideal for cleansers and makeup removers without leaving a heavy residue.
Stabilizes formulas
As an emulsifier, it helps keep oil and water mixed together, preventing your lotion or cream from separating and ensuring a consistent texture every time you use it.
Cons and cautions
May clog pores
With a moderate comedogenic rating, PEG-30 Lanolin can block pores for some people, especially those with acne-prone or oily skin, leading to breakouts.
Allergy risk
Because it's derived from lanolin, it can trigger allergic reactions in individuals with wool allergies or lanolin sensitivity, causing redness, itching, or irritation.
Best for
- People with dry or normal skin looking for a lightweight emollient
- Those who want a water-soluble lanolin alternative that rinses off easily
Use caution if
- Individuals with known wool or lanolin allergies
- Acne-prone or oily skin types concerned about pore clogging
Usage tips
Safety summary
PEG-30 Lanolin is considered safe for most people when used in cosmetics at typical concentrations. The main concerns are potential comedogenicity (moderate risk) and allergic reactions in those with lanolin sensitivity. Trace impurities like 1,4-dioxane are regulated and kept low in quality products.
Research notes
Research on PEG-30 Lanolin is limited, but it is generally recognized as safe by cosmetic ingredient review panels. Studies on lanolin derivatives show low acute toxicity and skin irritation potential, though individual sensitivity varies. The comedogenic rating is based on historical rabbit ear tests and clinical observations.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics by the U.S. FDA and the European Commission under the EU Cosmetics Regulation. Manufacturers must ensure low levels of impurities like 1,4-dioxane.
- Common uses
- Moisturizers, Cleansers, Hair conditioners, Makeup removers, Body lotions
- Environmental note
- PEG compounds are generally biodegradable, but the ethoxylation process uses ethylene oxide, which is derived from fossil fuels. Lanolin is a byproduct of wool production, making it a renewable resource.
Good to know
- PEG-30 Lanolin is often listed under INCI as 'PEG-30 Lanolin' and may appear in both leave-on and rinse-off products.
- The 'PEG-30' indicates 30 ethylene oxide units were added; higher numbers generally mean better water solubility.
- Some consumers prefer PEG-free alternatives due to concerns about 1,4-dioxane contamination, though reputable brands test for purity.
Common questions
What is PEG-30 Lanolin in beauty products?
PEG-30 Lanolin is a modified form of lanolin, the natural oil from sheep's wool. By adding PEG (polyethylene glycol) chains, manufacturers make lanolin water-soluble so it rinses off easily and mixes well in creams and cleansers. It works as an emollient, meaning it softens and smooths the skin by filling in gaps between skin cells, and as an emulsifier, helping oil and water ingredients stay blended. Because it's derived from lanolin, it carries a moderate risk of clogging pores (comedogenicity) and may cause reactions in people with wool allergies.
What does PEG-30 Lanolin do in a beauty product?
In a cosmetic product, PEG-30 Lanolin acts as both an emollient and an emulsifier. As an emollient, it deposits a thin, non-greasy film on the skin that reduces water loss and leaves skin feeling soft. As an emulsifier, it helps stabilize mixtures of oil and water, preventing separation and ensuring a smooth, uniform texture.
Is PEG-30 Lanolin safe for most people?
PEG-30 Lanolin is considered safe for most people when used in cosmetics at typical concentrations. The main concerns are potential comedogenicity (moderate risk) and allergic reactions in those with lanolin sensitivity. Trace impurities like 1,4-dioxane are regulated and kept low in quality products.
Who should be careful with PEG-30 Lanolin?
Individuals with known wool or lanolin allergies Acne-prone or oily skin types concerned about pore clogging
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.