Ingredient review
PEG-75 Lanolin Oil
INCI: PEG-75 Lanolin Oil
A gentle, water-friendly emollient derived from lanolin that helps soften skin and blend oil and water in formulas.
In plain English
PEG-75 Lanolin Oil is a modified version of lanolin, a natural oil from sheep's wool. The 'PEG-75' part means it has been processed to become water-soluble, so it rinses off easily and doesn't feel greasy. It helps moisturize by forming a light film on the skin that reduces water loss, and it also helps mix oil and water ingredients together in a product. It's considered very gentle and unlikely to clog pores, making it a good choice for sensitive or dry 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-75 Lanolin 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-75 Lanolin 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 semi-synthetic ingredient created by reacting lanolin oil with ethylene oxide (PEG), resulting in a water-soluble emollient that retains the moisturizing properties of natural lanolin without the heavy, sticky feel.
How it works
It works by coating the skin with a thin, breathable film that slows water evaporation, keeping skin hydrated. As an emulsifier, it helps oil and water blend into a stable, creamy texture, improving product feel and spreadability.
Pros
Non-greasy hydration
Unlike traditional lanolin, PEG-75 Lanolin Oil rinses off easily and leaves skin soft without a heavy, oily residue.
Gentle for sensitive skin
It has a low irritation and comedogenic risk, making it suitable for most skin types, including those prone to redness or breakouts.
Cons and cautions
Potential allergen for some
People with wool or lanolin allergies may experience contact dermatitis, so patch testing is recommended before use.
Processing concerns
As a PEG derivative, it may contain trace amounts of 1,4-dioxane (a potential carcinogen) if not properly purified, though reputable brands ensure low levels.
Best for
- People with dry or normal skin looking for a non-greasy moisturizer
- Those who prefer water-soluble cleansers that still feel nourishing
Use caution if
- Individuals with known wool or lanolin allergies
- Those who strictly avoid PEG-derived ingredients due to ethical or purity concerns
Usage tips
Safety summary
PEG-75 Lanolin Oil is considered safe for most people when used in properly formulated cosmetics. The main concerns are potential lanolin allergy and trace impurities from PEG processing, which are regulated in many regions. Overall, it has a low risk of irritation and clogging pores.
Research notes
Studies on PEGylated lanolin derivatives show they are effective emollients with low irritation potential. The CIR panel has reviewed PEG lanolin and found it safe for cosmetic use. Research on 1,4-dioxane indicates that levels in well-purified PEG ingredients are below safety thresholds.
Common label clues
- Typical concentration
- 1% to 10% in rinse-off products; 0.5% to 5% in leave-on products
- Regulatory status
- Approved for use in cosmetics by the FDA and the European Commission. The Cosmetic Ingredient Review (CIR) panel has deemed PEGylated lanolin derivatives safe when formulated to minimize impurities.
- Common uses
- Moisturizers, Cleansers, Makeup removers, Hair conditioners, Body lotions
- Environmental note
- Lanolin is a byproduct of wool production, making it a renewable resource. However, PEG processing involves ethylene oxide, which is derived from fossil fuels and has environmental concerns. Biodegradability is moderate.
Good to know
- PEG-75 Lanolin Oil is often listed near the end of ingredient lists, meaning it's used in small amounts.
- It is not the same as pure lanolin—it's much lighter and water-friendly.
- The number '75' indicates the average length of the PEG chain, which determines its water solubility.
Common questions
What is PEG-75 Lanolin Oil in beauty products?
PEG-75 Lanolin Oil is a modified version of lanolin, a natural oil from sheep's wool. The 'PEG-75' part means it has been processed to become water-soluble, so it rinses off easily and doesn't feel greasy. It helps moisturize by forming a light film on the skin that reduces water loss, and it also helps mix oil and water ingredients together in a product. It's considered very gentle and unlikely to clog pores, making it a good choice for sensitive or dry skin.
What does PEG-75 Lanolin Oil do in a beauty product?
It works by coating the skin with a thin, breathable film that slows water evaporation, keeping skin hydrated. As an emulsifier, it helps oil and water blend into a stable, creamy texture, improving product feel and spreadability.
Is PEG-75 Lanolin Oil safe for most people?
PEG-75 Lanolin Oil is considered safe for most people when used in properly formulated cosmetics. The main concerns are potential lanolin allergy and trace impurities from PEG processing, which are regulated in many regions. Overall, it has a low risk of irritation and clogging pores.
Who should be careful with PEG-75 Lanolin Oil?
Individuals with known wool or lanolin allergies Those who strictly avoid PEG-derived ingredients due to ethical or purity concerns
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.