This phytolisse express smoothing mask instantly detangles straightens and nourishes hair it shields each hair strand from humidity and smoothes the cuticle down for longlasting antifrizz result hair is left shiny supple and silky softup to 72 hours antifrizz effectiveness clinically proven smoother controlled hair under all weather conditionsstudy carried out by an independent laboratory on 22 women consumer findings in a 4 week product testdirections for use after shampooing apply a