Bioderma node ds anti dandruff intense shampoo an intensive shampoo that prevents recurrences of persistent dandruff and soothes itching the exclusive node ds formula offers increased efficacy against severe dandruff the dsactive174 patented complex guarantees dual efficacy thanks to its biological action on the cause of scales it limits the proliferation of malassezia yeasts responsible for dandruff it prevents recurrences by minimising sebum secretion which c