EWG Risk Score:
What is it?
Potassium sorbate is the potassium salt of sorbic acid and is used as a preservative in cosmetic items as well as food.
What are its risks:
- Potassium sorbate can cause allergic reaction in repeated high amounts or in certain individuals. (Source)
- Can be a skin or eye irritant when used in high concentrations.
- Found to be genotoxic to human lymphocytes. In other words, it has been found to alter or destroy the DNA within human white blood cells. (Source)
- Derived from petroleum (Source) This itself doesn't make it harmful, unless there are impurities that are not filtered out in processing (polyaromatic hydrocarbons.)
Potassium sorbate has longbeen considered one of the "safer" options when it comes to preservatives, with the biggest risk it was thought to carry being potential for allergy. However, with new information shedding light on its genotoxicity, it is now on my "avoid" list.