4-Diaminophenoxyethanolhcl vs 6-Hydroxyindole
4-Diaminophenoxyethanolhcl and 6-Hydroxyindole are both added colour ingredients. 4-Diaminophenoxyethanolhcl is found in 1 product while 6-Hydroxyindole appears in 4, making 6-Hydroxyindole the more widely used option.
4-Diaminophenoxyethanolhcl
Added colour
6-Hydroxyindole
Added colour