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Ingredient · Adhesive / resin

Pentaerythrityl rosinates

Cleaner · 7/10, higher is cleaner

How we reached this

Pentaerythritol esters of rosin (pine-resin) acids. Adhesive/binder used in pressure-sensitive tape on diaper closures + sanitary products. High molecular weight = not dermally absorbed. EWG Skin Deep low-hazard. Plant-source (pine) feedstock.

Sources · 1

Products containing this · 2

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.