Ingredient glossary
Ethyl Ascorbic Acid
On your shelf ✓What Ethyl Ascorbic Acid does for your skin, who it suits, and what to watch for.
INCI: 3-O-Ethyl Ascorbic Acid · Also: EA, EAA
In short: Ethyl Ascorbic Acid delivers brightening and antioxidant, suits most skin types, and the evidence behind it is moderate. One thing to know: introduce it gently; needs the right pH to work.
- What it does
- Brightening, antioxidant
- Best for
- Most skin types
- Watch out
- Introduce it gently; needs the right pH to work
- Evidence
- Moderate
The molecule
The Glow take
Genuinely worth a spot in your routine.
When your goal is fading dark spots and evening out tone, Ethyl Ascorbic Acid pulls genuine weight, with a solid amount of evidence behind it. Introduce it gently, and pair it with something soothing if your skin runs sensitive.
— Maya
What it does
- brightening
- antioxidant
- anti aging
moderate evidenceIn vitro and ex vivo work plus early clinical studies show tyrosinase inhibition and pigment reduction yet long term photoaging outcomes are not well defined.
On a label: usually effective at 0.5-3%.
Who it's for, and who should skip it
Tends to suit
- normal
- combo
- oily
- pigmentation
Approach with care
- very sensitive
- compromised barrier
- Clogs poresLow
- Irritation riskModerate
- pH-dependentIts effect depends on the product's pH
How it fits each skin type
- DrySuits
- CombinationSuits
- OilySuits
- SensitiveTake care
Often chosen for pigmentation. Take extra care if any of these apply to you: compromised barrier.
Where it fits in your routine
Plays well with
- niacinamide
- green tea
- other brighteners
Ethyl Ascorbic Acid, answered
Is Ethyl Ascorbic Acid safe during pregnancy?
Yes. Ethyl Ascorbic Acid is considered safe to use during pregnancy and breastfeeding. As with anything, if you are unsure it is worth a quick word with your doctor or midwife.
Who should avoid Ethyl Ascorbic Acid?
Approach Ethyl Ascorbic Acid with care if any of these apply to you: very sensitive and compromised barrier. Its irritation risk is moderate, so introduce it slowly and patch test first.
What concentration of Ethyl Ascorbic Acid actually works?
Ethyl Ascorbic Acid tends to do its job in the 0.5 to 3% range. Much lower and it is likely underdosed.
Compare Ethyl Ascorbic Acid with
Can you mix Ethyl Ascorbic Acid with
This, for every label you own
One ingredient is easy. A full label is where it gets confusing. The Ingredient Decoder reads any product and tells you the honest truth, ingredient by ingredient.