Tetrasodium Iminodisuccinate

Tetrasodium iminodisuccinate is a biodegradable, water-soluble chelating agent used in cosmetics and cleansers to bind metal ions. It improves product stability and compatibility, supporting clarity, preservative efficacy, and rinse performance.
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Ingredient Snapshot

Overview
Binds trace metals to help cleansers and lotions stay stable and clear.
Category
Preservative
Type
Chelating Agent

Ingredient Ratings

Overall Rating

Great

Comedogenic Risk

None

Skin Benefits

Helps keep formulas performing reliably by binding trace metals that can degrade quality, and can improve rinse-off feel, especially in hard water.

Uses In Skincare & Cosmetics

Often included in face washes, shampoos, body washes, and makeup removers to support consistent results across different water conditions.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally regarded as low risk for irritation at typical cosmetic levels. Suitable for sensitive skin in most formulas, including leave-on. No widely cited cosmetic regulatory restrictions.

Is Tetrasodium Iminodisuccinate a Good Ingredient?

It rates Great as a highly effective, biodegradable chelator that stays stable across typical formulation pH ranges and improves preservative performance with a low irritation profile. Its track record in both rinse-off and leave-on products backs up reliable performance, with no notable sensitization reports.

Products with Tetrasodium Iminodisuccinate

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