Ingredient review

PEG-5 Lanolate

INCI: PEG-5 Lanolate

PEG-5 Lanolate is a gentle, water-friendly emollient that helps soften skin and stabilize formulas, but may be moderately clogging for acne-prone skin.

beautyskincareemollientemulsifier

In plain English

PEG-5 Lanolate is a modified version of lanolin, a natural oil from sheep's wool. The modification makes it mix with water, so it spreads easily in lotions and cleansers without feeling greasy. It helps keep skin soft and smooth by reducing water loss, but because it's still related to lanolin, it can be comedogenic (pore-clogging) for some people.

Review score

Safety, usefulness, and evidence

3.5Good
3.5/ 5

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
How reviews are scored

Quick decision guide

Useful, but context matters

PEG-5 Lanolate 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.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging PEG-5 Lanolate.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. 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

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

moderate

May be fine for many users but deserves caution if you are breakout-prone.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

PEG-5 Lanolate is a semi-synthetic ingredient made by reacting lanolin with ethylene oxide. This process creates a water-soluble emollient that retains the moisturizing properties of lanolin while improving its texture and compatibility with water-based formulas.

How it works

In a cosmetic product, PEG-5 Lanolate acts as both an emollient and an emulsifier. As an emollient, it fills in gaps between skin cells, making the skin feel smoother and softer. As an emulsifier, it helps blend oil and water ingredients together, creating stable creams and lotions. It also helps other ingredients spread evenly on the skin.

Pros

Water-friendly emollient

Unlike plain lanolin, PEG-5 Lanolate mixes easily with water, making it ideal for lightweight lotions and cleansers that feel non-greasy.

Stabilizes formulas

It helps keep oil and water blended together, improving the texture and shelf life of creams and lotions.

Cons and cautions

Moderate comedogenic risk

This ingredient can clog pores for some people, especially those with acne-prone or oily skin, leading to breakouts.

Potential lanolin sensitivity

If you are allergic or sensitive to lanolin, you may also react to PEG-5 Lanolate, causing redness or irritation.

Best for

  • People with dry or normal skin looking for gentle emollients
  • Those who tolerate lanolin-based ingredients well

Use caution if

  • Individuals with known lanolin allergy or sensitivity
  • Acne-prone or oily skin types concerned about clogged pores

Usage tips

If you have acne-prone skin, patch test on a small area before using products containing PEG-5 Lanolate.
Look for it in rinse-off products like cleansers or shampoos to minimize pore-clogging risk.
Combine with non-comedogenic moisturizers if you are concerned about breakouts.

Safety summary

PEG-5 Lanolate is generally safe for most people when used as directed. The main concerns are its moderate comedogenic potential and possible irritation for those with lanolin sensitivity. Regulatory bodies consider it safe at typical cosmetic concentrations.

Research notes

Research on PEG-5 Lanolate is limited, but it is closely related to lanolin and other PEG derivatives, which have been extensively studied. The Cosmetic Ingredient Review panel has reviewed PEG lanolin derivatives and found them safe for cosmetic use. No significant toxicity or irritation has been reported in standard tests.

Common label clues

Typical concentration
1% to 10% in rinse-off products; lower in leave-on products
Regulatory status
Approved for use in cosmetics in the US, EU, and many other regions. The Cosmetic Ingredient Review (CIR) panel has deemed it safe at typical concentrations.
Common uses
Moisturizers, Cleansers, Hair conditioners, Makeup removers, Soaps
Environmental note
The ethoxylation process may produce trace amounts of 1,4-dioxane, a potential contaminant, but levels are regulated and typically very low in finished products.

Good to know

  • PEG-5 Lanolate is often listed near the end of ingredient lists, indicating low concentrations.
  • The 'PEG-5' refers to the number of ethylene oxide units added, which affects water solubility.
  • It is considered safe by the Cosmetic Ingredient Review (CIR) panel at typical use levels.

Common questions

What is PEG-5 Lanolate in beauty products?

PEG-5 Lanolate is a modified version of lanolin, a natural oil from sheep's wool. The modification makes it mix with water, so it spreads easily in lotions and cleansers without feeling greasy. It helps keep skin soft and smooth by reducing water loss, but because it's still related to lanolin, it can be comedogenic (pore-clogging) for some people.

What does PEG-5 Lanolate do in a beauty product?

In a cosmetic product, PEG-5 Lanolate acts as both an emollient and an emulsifier. As an emollient, it fills in gaps between skin cells, making the skin feel smoother and softer. As an emulsifier, it helps blend oil and water ingredients together, creating stable creams and lotions. It also helps other ingredients spread evenly on the skin.

Is PEG-5 Lanolate safe for most people?

PEG-5 Lanolate is generally safe for most people when used as directed. The main concerns are its moderate comedogenic potential and possible irritation for those with lanolin sensitivity. Regulatory bodies consider it safe at typical cosmetic concentrations.

Who should be careful with PEG-5 Lanolate?

Individuals with known lanolin allergy or sensitivity Acne-prone or oily skin types concerned about clogged pores

Research sources

Cosmetic Ingredient Review (CIR) - Safety Assessment of PEG Lanolin DerivativesOpenPubMed - Lanolin and its derivatives in dermatologyOpenEuropean Chemicals Agency (ECHA) - PEG-5 LanolateOpen

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.