Ingredient glossary
Trisodium EDDS
On your shelf ✓What Trisodium EDDS does for your skin, who it suits, and what to watch for.
INCI: Trisodium Ethylenediamine Disuccinate · Also: EDDS
In short: Trisodium EDDS delivers chelation and oxidative stability, plays a broad, supporting role, and the evidence behind it is strong.
- What it does
- Chelation, oxidative stability
- Best for
- A broad, supporting role
- Evidence
- Strong
The molecule
The Glow take
Nice to have, and nothing to overthink.
Trisodium EDDS plays a quiet supporting role, rounding out a formula rather than being the reason you buy it.
— Maya
What it does
- chelation
- oxidative stability
- preservation
strong evidenceThe CIR panel reviewed it together with tetrasodium iminodisuccinate in 2023 and found it safe at reported use levels up to 0.64 percent with no clinically relevant irritation or sensitization.
Who it's for, and who should skip it
Tends to suit
No specific skin type. It is a broadly used ingredient.
Approach with care
- rare allergy
- Irritation riskLow
How it fits each skin type
- DryNeutral
- CombinationNeutral
- OilyNeutral
- SensitiveNeutral
Take extra care if any of these apply to you: rare allergy.
Where it fits in your routine
Plays well with
- preservatives
Trisodium EDDS, answered
Is Trisodium EDDS safe during pregnancy?
Yes. Trisodium EDDS 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 Trisodium EDDS?
Approach Trisodium EDDS with care if any of these apply to you: rare allergy.
What concentration of Trisodium EDDS actually works?
Its concentration is rarely printed on the label, so use the ingredient list as your clue: near the top third it is likely doing real work, near the bottom it is more of a sprinkle.
Does it clog pores?
No comedogenicity studies exist for this water-soluble chelator; rated 0 here.
- This rating comes from old lab tests on the isolated ingredient, not the finished product.
- The full formula, how much is used, and your own skin all matter more than one number.
- If you are acne-prone it is worth noticing, not a reason to avoid it on sight.
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Sources & how we reviewed this
- CIR safety review EDDS and iminodisuccinate 2023summary page only, the document itself was not read