How we scored it
Lysed plant callus cells built from sucrose and mineral nutrients (n=1); growth regulators and medium additives leave 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
Leontopodium alpinum cells are grown as an undifferentiated callus on a sugar and mineral medium, then lysed and filtered. No synthetic route exists; growth regulators and medium additives leave no mass in the lysate.
In plain English
A skin-conditioning ingredient made by growing edelweiss (Leontopodium alpinum) cells as a callus in laboratory culture, then breaking the cells open and collecting the contents. It is a mixture of cell components, and its makeup depends on the culture and supplier.
CosIng definition: Leontopodium Alpinum Callus Lysate is a lysate of the cultured callus of Leontopodium alpinum, Asteraceae.
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.
- 2LEONTOPODIUM ALPINUM CALLUS LYSATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3LEONTOPODIUM ALPINUM CALLUS LYSATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=LEONTOPODIUM%20ALPINUM%20CALLUS%20LYSATE