Sodium Polyitaconate

Sodium polyitaconate is a synthetic chelating agent derived from itaconic acid, a naturally occurring organic compound. In skincare formulations, it binds to trace metal ions (such as iron, copper and magnesium) that may be present in water or other ingredients, preventing them from interfering with product stability and efficacy.As a chelator, it works behind the scenes to preserve the integrity of skincare products rather than directly affecting skin. It is commonly used in formulations alongside other actives to ensure they remain potent and stable throughout the product's shelf life.

Sodium polyitaconate functions as a chelating agent by binding tightly to metal ions that exist in trace amounts within skincare formulations. These metal ions, though present in tiny quantities, can catalyse unwanted chemical reactions—particularly oxidation—which can degrade active ingredients and alter product appearance or texture.By sequestering these metals, sodium polyitaconate prevents them from triggering degradation reactions. This extends product stability and ensures that actives like vitamins, peptides and antioxidants remain effective for as long as possible, delivering more r…

Sodium polyitaconate is not an active ingredient you need to use strategically; it works continuously within the formula. Simply use your product as directed. Its presence is particularly valuable in formulations containing easily oxidised ingredients (such as vitamin C, retinoids or plant extracts), where it helps ensure you receive the full potency of these actives throughout the product's lifespan.

Sodium polyitaconate is generally well-tolerated and is considered safe for use in cosmetic formulations. As a chelating agent present in low concentrations, it is unlikely to cause irritation or sensitivity in most skin types.