Ingredient review
Borage Ethyl Esters
INCI: BORAGO OFFICINALIS ETHYL ESTER
A gentle, non-greasy emollient that delivers essential fatty acids to support skin barrier function and soothe dryness.
In plain English
Borage ethyl esters are a modified version of borage oil. The original oil is rich in gamma-linolenic acid (GLA), a type of omega-6 fatty acid that helps keep skin soft and healthy. By converting the oil into an ethyl ester form, it becomes lighter and absorbs more easily into the skin without leaving a heavy, greasy feel. This makes it a great choice for people with dry or sensitive skin who want deep moisture without clogging pores.
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
Borage Ethyl Esters 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 Borage Ethyl Esters.
- 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 made by reacting borage oil with ethanol to create ethyl esters. This process preserves the beneficial fatty acids while making the oil less viscous and more stable in formulations.
How it works
When applied to the skin, borage ethyl esters penetrate the outer layer and release GLA, which the skin can use to strengthen its natural barrier. This helps reduce water loss (transepidermal water loss, or TEWL) and keeps skin hydrated and plump. The ethyl ester form also allows the ingredient to spread easily and feel silky on the skin.
Pros
Lightweight moisture
Unlike many plant oils, borage ethyl esters absorb quickly without a greasy residue, making them ideal for daytime use or under makeup.
Barrier support
The GLA content helps reinforce the skin's natural barrier, which can reduce dryness and improve overall skin resilience over time.
Cons and cautions
Processing concerns
Because it's chemically modified from natural oil, some consumers who prefer entirely natural ingredients may avoid it.
Less studied form
Most research on GLA benefits uses natural borage oil; the ethyl ester version has fewer direct studies, though it's considered safe and effective.
Best for
- People with dry or dehydrated skin looking for lightweight moisture
- Those with sensitive or easily irritated skin who want a gentle emollient
Use caution if
- Anyone with a known allergy to borage or plants in the Boraginaceae family
Usage tips
Safety summary
Borage ethyl esters are considered safe for topical use with a low risk of irritation or clogged pores. As with any new ingredient, patch test if you have very sensitive skin or a history of plant allergies.
Research notes
While borage oil itself has moderate evidence supporting its use for dry skin and barrier repair, the ethyl ester form is less studied. However, its chemical similarity and improved absorption suggest comparable benefits. Most safety data comes from general use of fatty acid esters in cosmetics.
Common label clues
- Typical concentration
- 1–5% in leave-on products
- Regulatory status
- Approved for cosmetic use in the EU, US, and most major markets. Generally recognized as safe when used as directed.
- Common uses
- Moisturizers, Anti-aging creams, Serums, Body lotions
- Environmental note
- Borage is a hardy plant that can be grown with minimal pesticides, but the ethyl ester process requires chemical reagents and energy. Look for sustainably sourced borage if environmental impact is a concern.
Good to know
- Borage ethyl esters are often used in 'barrier repair' formulations alongside ceramides and niacinamide.
- The ethyl ester form is more stable and less prone to oxidation than natural borage oil.
Common questions
What is Borage Ethyl Esters in beauty products?
Borage ethyl esters are a modified version of borage oil. The original oil is rich in gamma-linolenic acid (GLA), a type of omega-6 fatty acid that helps keep skin soft and healthy. By converting the oil into an ethyl ester form, it becomes lighter and absorbs more easily into the skin without leaving a heavy, greasy feel. This makes it a great choice for people with dry or sensitive skin who want deep moisture without clogging pores.
What does Borage Ethyl Esters do in a beauty product?
When applied to the skin, borage ethyl esters penetrate the outer layer and release GLA, which the skin can use to strengthen its natural barrier. This helps reduce water loss (transepidermal water loss, or TEWL) and keeps skin hydrated and plump. The ethyl ester form also allows the ingredient to spread easily and feel silky on the skin.
Is Borage Ethyl Esters safe for most people?
Borage ethyl esters are considered safe for topical use with a low risk of irritation or clogged pores. As with any new ingredient, patch test if you have very sensitive skin or a history of plant allergies.
Who should be careful with Borage Ethyl Esters?
Anyone with a known allergy to borage or plants in the Boraginaceae family
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.