How we scored it
Stem extract: all mass is plant-derived compounds; extraction solvent leaves no mass. Natural 1.0 / total 1.0 = 1.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.
Where it comes from
Stems of Indian madder are extracted with water or an alcohol/glycol solvent and concentrated. No synthetic route exists, and any carrier solvent is declared separately on the label.
In plain English
An extract of the stems of Indian madder, a climbing plant of Asia, listed as a humectant, meaning it helps skin hold water. It is made by extracting the stems with a solvent and keeping the dissolved plant compounds.
CosIng definition: Rubia Cordifolia Stem Extract is an extract of the stems of the Indian Madder, Rubia cordifolia L., Rubiaceae
References
- 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
- 2RUBIA CORDIFOLIA STEM EXTRACT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3RUBIA CORDIFOLIA STEM EXTRACT. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=RUBIA%20CORDIFOLIA%20STEM%20EXTRACT