1-Naphthol vs 2-Methylresorcinol2-Methyl-5-Hydroxyethylaminophenol
1-Naphthol and 2-Methylresorcinol2-Methyl-5-Hydroxyethylaminophenol are both added colour ingredients. 1-Naphthol is found in 1 product while 2-Methylresorcinol2-Methyl-5-Hydroxyethylaminophenol appears in 1, making 1-Naphthol the more widely used option.
1-Naphthol
Added colour
2-Methylresorcinol2-Methyl-5-Hydroxyethylaminophenol
Added colour