Database/Light Stabilizer/Esculin
100% natural origin · ISO 16128

Is Esculin natural?

Yes. Coumarin aglycone and the glucose unit both originate from horse chestnut bark and leaves; extraction adds no petrochemical fragment.

INCI nameEsculin
CAS531-75-9
FormulaC15H16O9 · 340.28 Da
FunctionLight Stabilizer · Tonic
FeedstockExtracted from the bark and leaves of horse…

How we scored it

Esculetin (coumarin) + glucose, glycosidically linked; both natural plant building blocks, extraction adds no petrochemical mass.
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 from the bark and leaves of horse chestnut (Aesculus hippocastanum) using aqueous or alcoholic solvents. No commercial synthetic route exists.

In plain English

A natural coumarin glycoside from horse chestnut bark and leaves, used to help protect skin from light damage. Obtained by extracting the tree bark and leaves.

CosIng definition: Esculin is a glucoside compound originally obtained from the leaves and bark of the horse chestnut tree, Aesculus hippocastanum. It conforms to the formula

Structure

2D structure of Esculin

7-hydroxy-6-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-2-one

PubChem CID 5281417 ↗

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. 2Esculin. PubChem CID 5281417. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3ESCULIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4ESCULIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ESCULIN