Bioderma Node P Shampooing Normalisant is a normalizing anti-dandruff shampoo suitable for all hair types. It effectively eliminates and prevents dandruff recurrence. How does Bioderma Node P Shampooing normalizing anti-dandruff shampoo work?Gently cleanses the hair and scalp.Biologically eliminates moderate dandruff (dry or oily) and prevents its recurrence.Relieves itching. Bioderma Nodé shampoos with NOn-DEtergence formulas are based on gentle, non-invasive cleansing agents that preserve the biological balance of the scalp and hair, ensuring optimal tolerance. Node P Shampooing Normalisant preserves scalp balance through the biological action of climbazole . It inhibits the growth of Malassezia , a group of yeasts that cause dandruff. This action is enhanced by piroctone olamine and complemented by the keratolytic properties of salicylic acid .