Introducing, the purple shampoo of your dreams! The new Olaplex N°.4P BLONDE ENHANCER™ TONING SHAMPOO! 💪REPAIRS with patented OLAPLEX technology 💧Cleanses & HYDRATES 💜Neutralizes brassiness & ✨BRIGHTENS blondes, Sulfate-free for #UnbreakableBlondes 3X BRIGHTER* *compared to top purple shampoos INSPIRED BY SALONS. PROVEN BY SCIENCE. CLINICALLY TESTED. STYLIST APPROVED. *100% of survey respondents stated they would recommend N°.4P to their clients.