How we scored it
Saponin mixture extracted intact from horse-chestnut seed; no petrochemical fragment introduced = 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
Extracted and purified from horse chestnut (Aesculus hippocastanum) seeds. No synthetic route is used commercially.
In plain English
A group of plant compounds extracted from horse chestnut seeds, used as a skin tonic. Comes directly from the seed, not made synthetically.
CosIng definition: Escin
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.
- 2ESCIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3ESCIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ESCIN