Ingredient review
PEG-70 Hydrogenated Lanolin
INCI: PEG-70 Hydrogenated Lanolin
A gentle, water-friendly lanolin derivative that hydrates and softens skin without the heavy feel of traditional lanolin.
In plain English
PEG-70 Hydrogenated Lanolin is a modified version of lanolin, a natural oil from sheep's wool. The modification makes it mix easily with water, so it can be used in rinse-off products like cleansers and conditioners without leaving a greasy residue. It helps skin feel smooth and soft by holding in moisture.
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-70 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-70 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 lanolin with ethylene oxide (PEG) and hydrogenating it to improve stability and water solubility. It appears as a waxy solid or thick liquid.
How it works
It forms a thin, breathable film on the skin that reduces water loss (transepidermal water loss, or TEWL) while also helping other ingredients blend together in a formula. Its PEG component allows it to dissolve in water, making it easy to rinse off.
Pros
Lightweight hydration
Unlike traditional lanolin, PEG-70 Hydrogenated Lanolin is water-soluble and rinses off easily, making it ideal for daily use without a heavy feel.
Gentle on skin
It has a low irritation and comedogenic risk, so it's unlikely to clog pores or cause breakouts for most people.
Cons and cautions
Potential allergen for some
Because it's derived from lanolin, people with wool allergies or lanolin sensitivity may still react to this modified version.
Processing concerns
The PEG (polyethylene glycol) part can contain trace impurities like ethylene oxide or 1,4-dioxane if not properly purified, though reputable manufacturers control this.
Best for
- People with dry or normal skin looking for light hydration
- Those who want a non-greasy emollient in cleansers or lotions
Use caution if
- Individuals with a known allergy to lanolin or wool alcohols
Usage tips
Safety summary
PEG-70 Hydrogenated Lanolin is considered safe for cosmetic use at typical concentrations. The main concern is potential allergy in lanolin-sensitive individuals, and the theoretical risk of PEG impurities, which is well-controlled in modern manufacturing.
Research notes
Lanolin derivatives have been studied for decades as effective skin moisturizers. The PEG modification is well-documented in cosmetic chemistry literature for improving water solubility. No recent high-quality studies specifically on PEG-70 Hydrogenated Lanolin were found, but its safety profile is supported by broader lanolin and PEG safety data.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no specific concentration restrictions, though good manufacturing practices are recommended to minimize impurities.
- Common uses
- Moisturizers, Cleansers, Hair conditioners, Soaps
- Environmental note
- PEG compounds are generally biodegradable, but their production relies on petrochemicals. Lanolin is a byproduct of wool production, making it a renewable resource.
Good to know
- The 'PEG-70' number indicates the length of the polyethylene glycol chain, which affects water solubility and texture.
- Hydrogenation makes the ingredient more stable and less likely to oxidize over time.
Common questions
What is PEG-70 Hydrogenated Lanolin in beauty products?
PEG-70 Hydrogenated Lanolin is a modified version of lanolin, a natural oil from sheep's wool. The modification makes it mix easily with water, so it can be used in rinse-off products like cleansers and conditioners without leaving a greasy residue. It helps skin feel smooth and soft by holding in moisture.
What does PEG-70 Hydrogenated Lanolin do in a beauty product?
It forms a thin, breathable film on the skin that reduces water loss (transepidermal water loss, or TEWL) while also helping other ingredients blend together in a formula. Its PEG component allows it to dissolve in water, making it easy to rinse off.
Is PEG-70 Hydrogenated Lanolin safe for most people?
PEG-70 Hydrogenated Lanolin is considered safe for cosmetic use at typical concentrations. The main concern is potential allergy in lanolin-sensitive individuals, and the theoretical risk of PEG impurities, which is well-controlled in modern manufacturing.
Who should be careful with PEG-70 Hydrogenated Lanolin?
Individuals with a known allergy to lanolin or wool alcohols
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.