How we scored it
Copper-containing enzyme: protein of amino acids plus Cu ion (mineral); biological origin. 1.00.
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
Tyrosinase is extracted from mushrooms (Agaricus bisporus) or made by microbial fermentation, then purified. No synthetic route applies.
In plain English
An enzyme that acts on the amino acid tyrosine, used as a skin-conditioning ingredient. It is a protein containing copper, usually obtained from mushrooms or made by fermentation.
CosIng definition: Tyrosinase is a copper-containing enzyme that catalyzes the hydrolysis of tyrosine
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.
- 2TYROSINASE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3TYROSINASE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TYROSINASE