ISO 16128-2:2017 describes approaches to calculate natural, natural origin, organic and organic origin indexes that apply to the ingredient categories defined in ISO 16128‑1. This document also offers a framework to determine the natural, natural origin, organic and organic origin content of products based on the ingredient characterization. Neither ISO 16128‑1 nor this document addresses product communication (e.g. claims and labelling), human safety, environmental safety, socio-economic considerations (e.g. fair trade), characteristics of packaging materials or regulatory requirements applicable for cosmetics. ISO 16128-2:2017 builds on and enhances ISO 16128‑1. It is intended to be used in conjunction with ISO 16128‑1.