Ducray Sensinol Soothing Physio-Protective Serum is an intensive, no-rinse treatment for sensitive and/or weakened scalps. With its well-tolerated and non-greasy texture, this serum instantly soothes itching and burning sensations for up to a week after the end of the treatment, in part due to the inclusion of polidocanol, a local anaesthetic and antipruritic that offers quick and effective relief. 70% of clinical trial volunteers reported an immediately soothing effect after just one application, while 80% confirmed a renewed feeling of comfort.