Database/Skin Conditioning/Castanea Sativa Shell Extract
100% natural origin · ISO 16128

Is Castanea Sativa Shell Extract natural?

Yes. Entire extract is plant material from chestnut shells; no synthetic fragment is present.

INCI nameCastanea Sativa Shell Extract
CAS84695-99-8
FunctionSkin Conditioning
FeedstockProduced by extracting chestnut inner shells with solvent.…

How we scored it

Inner shell extract of chestnut; fully botanical, no synthetic fragment.
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

Produced by extracting chestnut inner shells with solvent. No alternative synthetic route exists.

In plain English

An extract from chestnut shells used to condition skin in cosmetic products.

CosIng definition: Castanea Sativa Shell Extract is an extract of the inner shell of the Chestnut, Castanea sativa, Fagaceae

References

  1. 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.
  2. 2CASTANEA SATIVA SHELL EXTRACT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3CASTANEA SATIVA SHELL EXTRACT. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CASTANEA%20SATIVA%20SHELL%20EXTRACT