Here's why:
* Lifting: Developer helps lift the natural pigment of your hair, allowing the dye to penetrate and deposit color.
* Color Development: It activates the color molecules in the hair dye, allowing them to bind to your hair strands and create the desired shade.
* Durability: Developer contributes to the longevity and vibrancy of the dye, ensuring the color stays longer.
Important Note: Always use the developer specifically recommended for the hair dye you are using. Different developers have different strengths (volumes), which affect how much lifting and color development they achieve. Using the wrong developer can result in unpredictable color results, damage to your hair, or even allergic reactions.
Always follow the instructions provided with your hair dye and developer carefully. If you have any doubts, it's best to consult a professional stylist.