If you wish to maintain your hair toned and brass free, you need to use Oligo Blue Shampoo. The skilled method of this shampoo consists of 11 amino acids and argan oil to fight brassiness. It helps restore and tone thinning, light, or boring hair. The sulfate-free, paraben-free shampoo is appropriate for natural blondes and folks with coloured hair. It is splendid to be used a couple of times per week or at any time when brassiness returns.