Ingredient review
Hazelnut Ethyl Ester
INCI: Corylus Avellana Ethyl Ester
A silky, non-greasy emollient derived from hazelnut oil that hydrates and softens skin without clogging pores.
In plain English
Hazelnut Ethyl Ester is a modified version of hazelnut oil. It's a lightweight, silky-feeling ingredient that spreads easily on the skin and helps keep it soft and hydrated. Unlike some heavy oils, it doesn't leave a sticky or greasy residue, making it a favorite for people with oily or combination skin.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
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
Easy yes for most routines
Hazelnut Ethyl Ester 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 Hazelnut Ethyl Ester.
- 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 ester created by reacting hazelnut oil with ethanol. This process transforms the natural oil into a more stable, lighter-textured ingredient that still retains the skin-conditioning benefits of the original oil.
How it works
It sits on the surface of the skin to form a thin, breathable film that reduces water loss (transepidermal water loss, or TEWL — the moisture that evaporates from your skin). This helps keep the skin barrier healthy and supple. Its small molecular size allows it to absorb quickly without feeling heavy.
Pros
Lightweight feel
Unlike many natural oils, Hazelnut Ethyl Ester absorbs quickly and leaves a silky, non-greasy finish — ideal for daytime wear or under makeup.
Low clog risk
With a low comedogenic rating, it's unlikely to clog pores, making it a safe choice for acne-prone or sensitive skin types.
Cons and cautions
Not for very dry skin
Its lightweight nature means it may not provide enough moisture for severely dry or compromised skin barriers, which often need richer occlusives.
Less studied than alternatives
Compared to classic emollients like squalane or jojoba oil, there is less published research on Hazelnut Ethyl Ester's long-term skin benefits.
Best for
- People with oily or combination skin who want hydration without shine
- Anyone looking for a lightweight, non-comedogenic moisturizer ingredient
Use caution if
- Those with extremely dry or flaky skin may prefer a richer emollient
Usage tips
Safety summary
Hazelnut Ethyl Ester is considered safe for cosmetic use. It has low irritation and comedogenic potential. As with any ingredient, patch test if you have known nut allergies, though the esterification process may reduce allergenic proteins.
Research notes
Research on this specific ester is limited, but it is chemically similar to other well-studied emollient esters. Its safety profile is supported by general cosmetic ingredient safety assessments.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and most major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Moisturizers, Serums, Facial oils, Makeup removers
- Environmental note
- Derived from hazelnut oil, a renewable plant source. The esterification process is standard and generally considered low-impact.
Good to know
- This ingredient is often used in 'skin-like' formulations because its texture closely mimics the skin's natural sebum.
- It is vegan-friendly and not derived from animals.
Common questions
What is Hazelnut Ethyl Ester in beauty products?
Hazelnut Ethyl Ester is a modified version of hazelnut oil. It's a lightweight, silky-feeling ingredient that spreads easily on the skin and helps keep it soft and hydrated. Unlike some heavy oils, it doesn't leave a sticky or greasy residue, making it a favorite for people with oily or combination skin.
What does Hazelnut Ethyl Ester do in a beauty product?
It sits on the surface of the skin to form a thin, breathable film that reduces water loss (transepidermal water loss, or TEWL — the moisture that evaporates from your skin). This helps keep the skin barrier healthy and supple. Its small molecular size allows it to absorb quickly without feeling heavy.
Is Hazelnut Ethyl Ester safe for most people?
Hazelnut Ethyl Ester is considered safe for cosmetic use. It has low irritation and comedogenic potential. As with any ingredient, patch test if you have known nut allergies, though the esterification process may reduce allergenic proteins.
Who should be careful with Hazelnut Ethyl Ester?
Those with extremely dry or flaky skin may prefer a richer emollient
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.