BRAND NEW OLAPLEX - No. 4P. Sealed - see picture. What it is: A purple toning shampoo that strengthens, hydrates, and neutralizes brassiness while keeping hair hydrated from roots to ends. Hair Type: Fine, Medium, and Thick Hair Texture: Coily, Curly, Straight, and Wavy y Hair Concerns: - Brassiness - Color Safe - Color Fading