Sodium Polyaspartate ●
TL;DR. This ingredient is primarily a chelating and water-conditioning agent, helping bind metal ions that can destabilize formulas or dull surfactant performance. It can also support humectancy and a smoother skin or hair feel.
What does Sodium Polyaspartate do in a cosmetic formula?
This ingredient is primarily a chelating and water-conditioning agent, helping bind metal ions that can destabilize formulas or dull surfactant performance. It can also support humectancy and a smoother skin or hair feel.
Is Sodium Polyaspartate clean?
From a clean-beauty perspective, it is generally well-tolerated, not a common allergen, and has little restricted-list friction. It is often used as a biodegradable alternative to older chelators in rinse-off and leave-on formulas.
Is Sodium Polyaspartate sustainable?
This material is a biodegradable polymeric amino-acid salt, usually made through controlled polymerization followed by neutralization. Feedstock can vary, but its strong biodegradation profile is the main sustainability advantage.
Is Sodium Polyaspartate COSMOS-approved?
It is generally compatible with COSMOS-natural frameworks when sourced and processed according to the standard, though organic certification depends on the full supply chain. Its fit with Green Chemistry is strong because it is water-soluble, biodegradable, and can replace less biodegradable metal-binding systems.
How does Sodium Polyaspartate work chemically?
The molecule is an anionic polyamide salt with repeating carboxylate groups that coordinate calcium, magnesium, and trace transition metals in water-based systems. It is typically stable across the mildly acidic to alkaline pH range used in cosmetics and is co-formulated at low levels with preservatives, surfactants, and antioxidants to improve formula robustness.
Last updated 2026-05-13