Pentasodium Ethylenediamine Tetramethylene Phosphonate
What is Pentasodium Ethylenediamine Tetramethylene Phosphonate?
Pentasodium ethylenediamine tetramethylene phosphonate is a synthetic aminophosphonate compound, the pentasodium salt of ethylenediamine tetramethylene phosphonic acid. Developed for industrial and personal care applications, it appears in cosmetics like shampoos, body washes, and moisturizers. As a chelating agent, it sequesters divalent and trivalent metal ions such as calcium, magnesium, copper, and iron from water or ingredients. This action inhibits unwanted reactions like soap scum formation, oxidation, and microbial growth promotion, preserving product clarity, color, and performance. It also functions as a viscosity controller, modulating flow and thickness in emulsions and gels for optimal spreadability and suspension of particles. Its high solubility in water supports use across rinse-off and leave-on products, contributing to overall formulation integrity without altering skin feel.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Binds metal ions to boost product stability and prevent degradation.
Adjusts viscosity for smoother texture and easier application.
Supports consistent performance in hard water conditions.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Users in areas with hard water for better product efficacy. | Individuals with rare phosphonate sensitivities. |
| Those preferring stable, long-shelf-life skincare formulas. | Those avoiding synthetic chelators entirely. |
| People seeking improved texture in cleansers and lotions. | People with extremely sensitive skin prone to reactions. |
Safety Notes
- Low hazard rating from safety assessments.
- Minimal irritation potential in cosmetic use.
Frequently Asked Questions about Pentasodium Ethylenediamine Tetramethylene Phosphonate
What is pentasodium ethylenediamine tetramethylene phosphonate?
A synthetic phosphonate salt used as a chelator and viscosity adjuster in cosmetics.
Is it safe for skin?
Assessments indicate low hazard and irritation potential at typical levels.
What products contain it?
Common in shampoos, cleansers, and lotions for stability.