Purple shampoo and conditioner serve different purposes and are used for different reasons.

Purple shampoo is typically used to neutralize brassy or yellow tones in blonde or gray hair. It contains purple pigments that counteract the warm tones in the hair, helping to maintain a cool, ashy color. It is often recommended for individuals with blonde, silver, or highlighted hair who want to keep their color looking fresh and vibrant.

On the other hand, purple conditioner is less common than purple shampoo. While purple shampoo is used primarily for toning and color correction, purple conditioner is designed to provide nourishment and hydration to the hair. It may contain conditioning agents, oils, and other ingredients that help to moisturize and soften the hair.

Ultimately, whether purple shampoo or conditioner is better for you depends on your specific needs. If you are looking to combat brassy tones and maintain a cool hair color, purple shampoo would be the better choice. If you are seeking hydration and conditioning benefits, then purple conditioner would be more suitable. It's also worth noting that using both purple shampoo and conditioner in combination can provide comprehensive color correction and nourishment for your hair.