How we scored it
Pearl = calcium carbonate + conchiolin protein, biologically secreted; mineral/protein mass, no synthetic fragment. 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 from freshwater pearls secreted by Pinctada martensii mollusks, composed mainly of calcium carbonate and conchiolin protein. No petrochemical alternative route exists.
In plain English
An extract from natural pearls, used as an antioxidant in skincare. It's made from the calcium carbonate and protein that molluscs secrete to form pearls.
CosIng definition: Pearl Extract is the extract of the freshwater pearl, Pinctada martensii
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.
- 2PEARL EXTRACT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3PEARL EXTRACT. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PEARL%20EXTRACT