How we scored it
Plant extract, no single molecule: all constituents are plant metabolites (n = 1), so natural fraction = 1.0. Extraction solvents and carriers leave no counted 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
Leaves of self-heal (Prunella vulgaris) are extracted with water, ethanol or a glycol-water solvent and filtered. No synthetic alternative route exists for a botanical extract.
In plain English
An extract of the leaves of self-heal (Prunella vulgaris), a small mint-family herb common in Europe and Asia. It is used in skin care as a skin-conditioning ingredient. It is made by soaking the leaves in a solvent and filtering the liquid.
CosIng definition: Prunella Vulgaris Leaf Extract is an extract of the leaves of the Self Heal, Prunella vulgaris L., Lamiaceae
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.
- 2PRUNELLA VULGARIS LEAF EXTRACT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3PRUNELLA VULGARIS LEAF EXTRACT. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PRUNELLA%20VULGARIS%20LEAF%20EXTRACT