Kertyol PSO Shampoo to remove scales and relieve redness and itching. Combat flakes on the scalp caused by dryness. Relieves redness and itching. Its formula contains Kertyol, Salicylic Acid and Micronized Sulfur. It is a shampoo to fight against the red plaques that form in the scalp area, this flaking problem aesthetically affects those who suffer from them and produces uncomfortable redness and itching. To do this, the formula of this shampoo contains salicylic acid, an asset that controls the proliferation of the bacteria causing this problem and other assets that relieve itching and redness, fighting severe dandruff. Indicated for hair suffering from severe flaking states. To control the appearance of dandruff, it is important to use a sebum-regulating and keratoreductive product that relieves itching and reduces the production of sebum that greases the hair, accompanied by a gentle brushing and heat protectors. Keep in a cool and dry place, protected from sunlight. It is applied to the wet scalp and left to act for three minutes, then it is rinsed off with plenty of water. Treatment indicated for use two to three times a week for a minimum of 6 weeks.