How we scored it
Watercress flower, leaf and stem extract: every constituent is plant-derived (n=1); extraction solvent leaves no mass. 1.0 x 100% = 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
Dominant feedstock is the flowering aerial parts of Nasturtium officinale extracted with water or water-alcohol. No alternative route exists; any carrier solvent is declared as its own ingredient.
In plain English
An extract of the flowers, leaves and stems of watercress, made by soaking the plant in a solvent. It is listed as a skin-conditioning and perfuming ingredient. It comes entirely from the plant.
CosIng definition: Nasturtium Officinale Flower/Leaf/Stem Extract is an extract of the flowers, leaves and stems of the Watercress, Nasturtium officinale, Brassicaceae
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.
- 2NASTURTIUM OFFICINALE FLOWER/LEAF/STEM EXTRACT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3NASTURTIUM OFFICINALE FLOWER/LEAF/STEM EXTRACT. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=NASTURTIUM%20OFFICINALE%20FLOWER/LEAF/STEM%20EXTRACT