How we scored it
Botanical extract of witch hazel bark and leaves: whole substance plant-derived; solvents leave no mass. 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
Dominant route is water or hydro-alcoholic extraction of witch hazel bark and leaves, followed by filtration and concentration. No common alternative route.
In plain English
A witch hazel extract from the bark and leaves of the North American shrub, rich in tannins. It is used as an astringent and skin-conditioning ingredient and is made by extracting the plant material with water or alcohol.
CosIng definition: Hamamelis Virginiana Bark/Leaf Extract is the extract of the bark and leaves of the Witch hazel, Hamamelis virginiana L., Hamamelidaceae
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.
- 2HAMAMELIS VIRGINIANA BARK/LEAF EXTRACT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3HAMAMELIS VIRGINIANA BARK/LEAF EXTRACT. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HAMAMELIS%20VIRGINIANA%20BARK/LEAF%20EXTRACT