Olaplex N. 4P Blonde Enhancer Purple Toning Shampoo: Neutralizes Brassiness & Strengthen | Repairs Damages & Hydrates Hair| For Coily, Curly, Straight, and Wavy, 1000 mL / 33.8 Fl. Oz.

This ultra-concentrated purple shampoo reduces breakage and hydrates as it cleanses and tones from roots to ends. Use N.4P to neutralize brassy hair and yellow tones for brighter, softer, stronger blo...