Ingredient review

Acetylated Lanolin Ricinoleate

INCI: ACETYLATED LANOLIN RICINOLEATE

A rich emollient that softens skin but may clog pores for some, especially those prone to breakouts.

beautyskincareemollient

In plain English

This ingredient is a chemically modified version of lanolin (a natural oil from sheep's wool) combined with ricinoleic acid (from castor oil). It helps moisturize by forming a protective film on the skin that reduces water loss, making it feel softer and smoother. However, because it is oil-based, it can be heavy and may clog pores in people with oily or acne-prone skin.

Quick decision guide

Useful, but context matters

Acetylated Lanolin Ricinoleate 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 Acetylated Lanolin Ricinoleate.
  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

A semi-synthetic ester created by reacting lanolin alcohols with ricinoleic acid and then acetylating the result. It is a waxy, yellow-brown substance that is more spreadable and less sticky than raw lanolin.

How it works

It sits on the skin's surface as an occlusive layer, slowing down water evaporation (transepidermal water loss). This helps maintain hydration and gives a smooth, lubricated feel. It also helps other ingredients spread evenly and can improve the texture of lip products.

Pros

Excellent emollient for dry skin

Forms a protective film that locks in moisture, making it ideal for chapped lips or rough patches.

Improves product texture

Helps lipsticks and balms glide on smoothly without being sticky, enhancing the user experience.

Cons and cautions

Moderate comedogenic risk

Can clog pores and trigger breakouts in those with oily or acne-prone skin, especially on the face.

Heavy feel for some

May feel greasy or overly rich on normal to oily skin types, making it less suitable for lightweight formulas.

Best for

  • People with dry or very dry skin looking for rich moisture
  • Anyone using lip products that need a smooth, non-drying finish

Use caution if

  • Individuals with oily or acne-prone skin, especially on the face

Usage tips

Use in lip balms or heavy hand creams rather than facial moisturizers if you have oily skin.
Patch test on a small area before using on acne-prone areas to check for breakouts.

Safety summary

Generally safe for most people when used in cosmetics, but those with sensitive or acne-prone skin should use with caution due to its comedogenic potential.

Research notes

Limited modern clinical studies, but lanolin derivatives have a long history of safe use in cosmetics. The acetylation reduces allergenicity compared to raw lanolin.

Common label clues

Typical concentration
1–10%
Regulatory status
Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no specific restrictions at typical concentrations.
Common uses
Lipsticks, Lip balms, Moisturizers, Makeup removers
Environmental note
Lanolin is a byproduct of wool production, making it a renewable resource, but its processing involves chemical modification.

Good to know

  • Acetylation makes lanolin less sticky and more spreadable than raw lanolin.
  • It is often used in waterproof makeup removers because it helps dissolve long-wear formulas.

Common questions

What is Acetylated Lanolin Ricinoleate in beauty products?

This ingredient is a chemically modified version of lanolin (a natural oil from sheep's wool) combined with ricinoleic acid (from castor oil). It helps moisturize by forming a protective film on the skin that reduces water loss, making it feel softer and smoother. However, because it is oil-based, it can be heavy and may clog pores in people with oily or acne-prone skin.

What does Acetylated Lanolin Ricinoleate do in a beauty product?

It sits on the skin's surface as an occlusive layer, slowing down water evaporation (transepidermal water loss). This helps maintain hydration and gives a smooth, lubricated feel. It also helps other ingredients spread evenly and can improve the texture of lip products.

Is Acetylated Lanolin Ricinoleate safe for most people?

Generally safe for most people when used in cosmetics, but those with sensitive or acne-prone skin should use with caution due to its comedogenic potential.

Who should be careful with Acetylated Lanolin Ricinoleate?

Individuals with oily or acne-prone skin, especially on the face

Research sources

CosIng - European Commission databaseOpenFDA - Generally Recognized as Safe (GRAS) for lanolin derivativesOpenPubMed - Safety of lanolin derivatives in cosmeticsOpen

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.