Ingredient review

Ethyl Hydroxy Methylfuranone

INCI: 5-ETHYL-4-HYDROXY-2-METHYLFURAN-3(2H)-ONE

A synthetic fragrance ingredient that adds a sweet, caramel-like scent to products; generally considered safe at low concentrations but offers no skincare benefits.

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In plain English

This is a man-made chemical that smells like caramel or burnt sugar. It is added to skincare and beauty products purely for its pleasant scent. It does not moisturize, treat, or improve your skin in any way. Because it is a fragrance ingredient, it can sometimes cause irritation for people with sensitive skin, but at the very low levels used in cosmetics, it is generally well-tolerated.

Quick decision guide

Useful, but context matters

Ethyl Hydroxy Methylfuranone 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.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Ethyl Hydroxy Methylfuranone.
  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

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

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

What it is

A synthetic organic compound from the furanone family, known for its strong, sweet, caramel-like aroma. It is used as a flavoring agent in food and as a fragrance ingredient in cosmetics.

How it works

It works solely as a fragrance ingredient. It evaporates from the skin's surface, releasing its scent molecules into the air. It does not interact with the skin's biology or provide any functional benefit beyond smell.

Pros

Pleasant scent

Adds a warm, sweet caramel note that many people find appealing in lotions, cleansers, and perfumes.

Low irritation potential

When used at typical low concentrations, it has a low risk of causing skin irritation for most people.

Cons and cautions

No skin benefit

This ingredient is purely for scent. It does not hydrate, soothe, or protect the skin in any way.

Potential allergen

As a fragrance ingredient, it can trigger contact dermatitis or allergic reactions in people with sensitive skin or fragrance allergies.

Best for

  • Anyone who enjoys sweet-scented skincare products
  • Users without fragrance sensitivities

Use caution if

  • Individuals with known fragrance allergies or very sensitive skin

Usage tips

Patch test any new product containing this ingredient if you have sensitive skin.
If you prefer fragrance-free skincare, look for products labeled 'fragrance-free' or 'unscented'.

Safety summary

Considered safe for use in cosmetics at low concentrations by expert panels like the Research Institute for Fragrance Materials (RIFM). However, like all fragrance ingredients, it can cause allergic reactions in susceptible individuals.

Research notes

Research primarily focuses on its sensory properties and safety as a fragrance ingredient. Studies show low acute toxicity and skin irritation at typical use levels, but it is a recognized contact allergen in some people.

Common label clues

Typical concentration
Typically used at very low levels (less than 1%) for scent
Regulatory status
Approved for use as a fragrance ingredient in cosmetics by major regulatory bodies including the FDA and the European Commission, subject to concentration limits.
Common uses
Fragranced products, Perfumes, Body lotions, Cleansers
Environmental note
As a synthetic compound, its environmental impact depends on manufacturing practices and disposal. It is not known to be bioaccumulative.

Good to know

  • This ingredient is also used as a flavoring agent in foods like strawberries and pineapple.
  • It is often listed simply as 'fragrance' or 'parfum' on ingredient labels.

Common questions

What is Ethyl Hydroxy Methylfuranone in beauty products?

This is a man-made chemical that smells like caramel or burnt sugar. It is added to skincare and beauty products purely for its pleasant scent. It does not moisturize, treat, or improve your skin in any way. Because it is a fragrance ingredient, it can sometimes cause irritation for people with sensitive skin, but at the very low levels used in cosmetics, it is generally well-tolerated.

What does Ethyl Hydroxy Methylfuranone do in a beauty product?

It works solely as a fragrance ingredient. It evaporates from the skin's surface, releasing its scent molecules into the air. It does not interact with the skin's biology or provide any functional benefit beyond smell.

Is Ethyl Hydroxy Methylfuranone safe for most people?

Considered safe for use in cosmetics at low concentrations by expert panels like the Research Institute for Fragrance Materials (RIFM). However, like all fragrance ingredients, it can cause allergic reactions in susceptible individuals.

Who should be careful with Ethyl Hydroxy Methylfuranone?

Individuals with known fragrance allergies or very sensitive skin

Research sources

RIFM Fragrance Ingredient Safety AssessmentOpenPubChem Compound SummaryOpenEuropean Commission CosIng DatabaseOpen

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.