High concernColour
E127Erythrosine
A synthetic red dye. The US FDA revoked its use in food in 2025 because it caused thyroid tumours in male rats.
What the evidence says
- 1Caused thyroid tumours in animal studies
- 2Authorisation for food use revoked in the US in 2025
Sources
In a PureScan score
An ingredient of high concern removes 40 points from the additives and ingredients part of the score, and caps a product’s whole score at 30. How we score