How we scored it
Seed oil: glycerol, fatty acids (mainly calendic acid, a conjugated C18 triene) and minor lipids all plant-derived (n=1); pressing adds nothing. 1 / 1 = 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
Seeds of Calendula officinalis are mechanically pressed, usually cold-pressed, and the oil is filtered. No synthetic route exists; solvent-extracted seed oil is the same natural material.
In plain English
A plant oil pressed from pot marigold (calendula) seeds, used in skincare as a skin-conditioning ingredient. It is rich in a fatty acid called calendic acid and comes entirely from the seeds.
CosIng definition: Calendula Officinalis Seed Oil is the oil expressed from the seeds of the Calendula, Calendula officinalis L., Compositae
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.
- 2CALENDULA OFFICINALIS SEED OIL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3CALENDULA OFFICINALIS SEED OIL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CALENDULA%20OFFICINALIS%20SEED%20OIL