How we scored it
Plant extract: all constituents derive from plant biomass (n=1); extraction solvent leaves no mass. 1.00 / 1.00 = 1.00.
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
Harvested Luffa cylindrica fruits, leaves and stems are extracted with water, ethanol or glycerin-type solvents, then filtered. No synthetic route exists; a carrier such as propylene glycol is a separate INCI line and is not scored here.
In plain English
A skin-conditioning ingredient extracted from the fruits, leaves and stems of the sponge gourd or loofah (Luffa cylindrica), a vine in the cucumber family. It is a mixture of plant compounds, and its makeup depends on the solvent and supplier.
CosIng definition: Luffa Cylindrica Fruit/Leaf/Stem Extract is an extract of the fruits, leaves and stems of the Sponge Loofah, Luffa cylindrica, Cucurbitaceae
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.
- 2LUFFA CYLINDRICA FRUIT/LEAF/STEM EXTRACT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3LUFFA CYLINDRICA FRUIT/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=LUFFA%20CYLINDRICA%20FRUIT/LEAF/STEM%20EXTRACT