[How I treat … dandruff using a shampoo with a sulfate-free tensio-active].

A new formulation of an anti-dandruff shampoo containing a surfactant devoid of a sulfate-type anionic part has been assessed in vivo in 41 subjects. Introducing a welltried agent, the 0.5 % piroctone olamine confers to this shampoo a high anti-dandruff efficacy, a reduction in the density in Malassezia spp, as well as a good remanence after shampoo. In addition, piroctone olamine appears to influence the sebum rheology by reducing the hair greasing.