No, purple shampoo and toner are not the same thing, although they serve similar purposes.

Purple shampoo is a specialized shampoo that contains purple pigments. It is primarily used to neutralize and counteract unwanted brassy or yellow tones in blonde or gray hair. The purple pigments in the shampoo help to cancel out the warm tones, leaving the hair looking cooler and more ash-toned.

On the other hand, toner is a product that is typically applied after shampooing and before conditioning. It is used to adjust the color of the hair, whether it's blonde, brunette, or any other shade. Toner can be used to enhance the desired hair color, neutralize unwanted tones, or add depth and dimension.

While both purple shampoo and toner can be used to combat brassy tones, the main difference lies in their application. Purple shampoo is used during the regular shampooing process, while toner is a separate product applied after shampooing.

It's worth noting that toners can also come in various colors, not just purple. Different toners are used to achieve different results, such as adding warmth or coolness to the hair color. So, while purple shampoo specifically targets brassy tones, toners can have a broader range of color-correcting effects.