Ingredient review
Trisodium Ethylenediamine Disuccinate
INCI: TRISODIUM ETHYLENEDIAMINE DISUCCINATE
A gentle, biodegradable alternative to traditional chelating agents that protects your skincare formulas from metal-induced degradation.
In plain English
Trisodium ethylenediamine disuccinate is a chelating agent, which means it grabs onto tiny metal particles (like iron or copper) that can be present in water or other ingredients. These metals can cause your skincare products to change color, smell off, or become less effective over time. By binding to them, this ingredient keeps your products stable and working as intended. It's also biodegradable, making it a more environmentally friendly choice compared to some older chelating agents.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
The evidence base is relatively strong for its common cosmetic role.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- strong
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
Trisodium Ethylenediamine Disuccinate 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 Trisodium Ethylenediamine Disuccinate.
- 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
strongThere is a stronger practical or research basis for the ingredient role described here.
What it is
A synthetic, biodegradable chelating agent derived from ethylenediamine and succinic acid. It is designed to sequester metal ions in cosmetic formulations.
How it works
It forms stable complexes with metal ions (such as calcium, magnesium, iron, and copper) in the product, preventing them from catalyzing unwanted reactions like oxidation, discoloration, or rancidity. This helps preserve the product's appearance, texture, and efficacy.
Pros
Eco-friendly choice
Unlike EDTA, trisodium ethylenediamine disuccinate is readily biodegradable, meaning it breaks down more easily in the environment after use.
Gentle on skin
It has a very low irritation and comedogenic risk, making it suitable for sensitive and acne-prone skin types.
Cons and cautions
Slightly less effective in hard water
In areas with very hard water, it may not chelate as efficiently as EDTA, potentially requiring a slightly higher concentration.
Synthetic origin
It is not a naturally occurring ingredient, which may be a consideration for those following a strict natural or organic skincare routine.
Best for
- Anyone using products that contain water and are stored for extended periods
- People with sensitive skin who want a gentle chelating agent
Use caution if
- Those specifically seeking 100% natural or plant-derived ingredients
Usage tips
Safety summary
Trisodium ethylenediamine disuccinate is considered safe for use in cosmetics at typical concentrations. It has low skin irritation and sensitization potential, and no significant toxicity concerns have been identified in topical applications.
Research notes
Research supports its efficacy as a chelating agent and its biodegradability. Studies show it is less toxic to aquatic life than EDTA, making it a preferred choice for environmentally conscious formulations.
Common label clues
- Typical concentration
- 0.01% to 0.1%
- Regulatory status
- Approved for use in cosmetics in the EU, USA, and many other countries. It is listed in the CosIng database and is generally recognized as safe for topical use.
- Common uses
- Cleansers, Toners, Serums, Moisturizers, Sunscreens
- Environmental note
- Trisodium ethylenediamine disuccinate is biodegradable, which reduces its environmental impact compared to non-biodegradable chelating agents like EDTA.
Good to know
- It is often used as a direct replacement for EDTA in 'green' or eco-conscious formulations.
- It is approved for use in cosmetics by major regulatory bodies including the EU and FDA.
Common questions
What is Trisodium Ethylenediamine Disuccinate in beauty products?
Trisodium ethylenediamine disuccinate is a chelating agent, which means it grabs onto tiny metal particles (like iron or copper) that can be present in water or other ingredients. These metals can cause your skincare products to change color, smell off, or become less effective over time. By binding to them, this ingredient keeps your products stable and working as intended. It's also biodegradable, making it a more environmentally friendly choice compared to some older chelating agents.
What does Trisodium Ethylenediamine Disuccinate do in a beauty product?
It forms stable complexes with metal ions (such as calcium, magnesium, iron, and copper) in the product, preventing them from catalyzing unwanted reactions like oxidation, discoloration, or rancidity. This helps preserve the product's appearance, texture, and efficacy.
Is Trisodium Ethylenediamine Disuccinate safe for most people?
Trisodium ethylenediamine disuccinate is considered safe for use in cosmetics at typical concentrations. It has low skin irritation and sensitization potential, and no significant toxicity concerns have been identified in topical applications.
Who should be careful with Trisodium Ethylenediamine Disuccinate?
Those specifically seeking 100% natural or plant-derived ingredients
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.