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Ingredient · Structural polymer

Sodium Polyacrylate (SAP, superabsorbent polymer)

Mixed · 6/10, higher is cleaner

How we reached this

Superabsorbent polymer that holds many times its weight in liquid. Inert at the dermal interface; FDA permits indirect food contact. End-of-life landfill concern.

Sources · 1

Also listed as

SAPsuper-absorbent polymer

Products containing this · 1

About this rating

Ratings run 1–10, higher is cleaner, and are set editorially against the sources above — see the methodology page for how an ingredient rating becomes part of a product score. Last reviewed 2026-05-25.