The rebalancing shampoo Kertyol PSO is the complementary care for scalps with thick and dry loose dandruff plaques sometimes accompanied by intense itching *. Its formula was developed with a dermatologist and patients suffering from Psoriasis. Its innovative formula is effective and pleasant to use: - 77% reduction in itching from the first application** - 78% Reduction of the thickness of the plates from 1 month** - Respects hair coloring - Pleasant odor - Facilitates styling