Time-Resolved X-ray Diffraction

Abstract

Based on the data provided, the SCCS is of the opinion that the use of hydroxyethyl-2-nitro-p-toluidine with a maximum on-head concentration of 1.0% in oxidative and non-oxidative hair dye formulations does not pose a risk to the health of the consumer. A possible sensitising potential of hydroxyethyl-2-nitro-p-toluidine cannot be excluded. Hydroxyethyl-2-nitro-p-toluidine is a secondary amine, and thus prone to nitrosation. It should not be used in combination with nitrosating substances. The nitrosamine content should be < 50ppb.