The exclusive Nodé DS+ formula offers increased effectiveness against severe and persistent dandruff problems thanks to three complementary actions: - Thanks to the DSactiv™ patent, it acts on the cause of scalp flaking. It limits the proliferation of Malassezia yeast responsible for dandruff and prevents its return by minimizing sebum secretion. - Keratolytic action, thanks to salicylic acid and citric acid, which loosens scales and gets rid of stubborn dandruff. - Soothing action, thanks to palmitamide MEA, which immediately reduces the sensation of itching and redness of the scalp with long-lasting results. Detergent-free: like all Nodé shampoos, the Nodé DS+ formula contains only gentle, non-destructive washing bases that preserve the hair's protective film, thus respecting the physiology and balance of the hair and scalp.