How we scored it
Plant-cell biomass is built from sucrose and mineral salts in the medium (n = 1), so natural fraction = 1.0. Trace synthetic growth regulators and vitamins in the medium leave no counted mass.
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
Pomegranate leaf cells are grown in flasks or bioreactors on a sucrose and mineral medium, then extracted and filtered. The medium usually holds small amounts of synthetic plant hormones, which contribute only trace mass.
In plain English
An extract of pomegranate (Punica granatum) leaf cells grown in a laboratory culture instead of being picked from trees. It is listed as an antioxidant and skin-protecting ingredient. The cells grow on a sugar-and-mineral nutrient medium and are then extracted and filtered.
CosIng definition: Punica Granatum Leaf Cell Extract is the extract of a culture of the leaf cells of Punica granatum, Punicaceae.
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.
- 2PUNICA GRANATUM LEAF CELL EXTRACT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3PUNICA GRANATUM LEAF CELL EXTRACT. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PUNICA%20GRANATUM%20LEAF%20CELL%20EXTRACT