Here's why:
* Ash is a cool tone: Ash is a cool color that counteracts warm tones like red, orange, and yellow. It's often used in hair dye to neutralize brassiness and create a more neutral or cool blonde.
* Red is a warm tone: Red is a warm color that can be very noticeable, especially in blonde hair.
* Mixing ash with other colors: While ash can help neutralize unwanted red tones, it doesn't always completely eliminate them. If your hair dye contains a significant amount of red pigment, even with ash, you may still end up with a subtle red tint.
Here's a breakdown of how ash works in hair dye:
* Neutralizing: Ash tones are often used to neutralize brassiness (yellow/orange) in blonde hair.
* Cool tones: When combined with other colors, ash can create a cooler, more subtle blonde.
* Color correction: Ash can be used to correct unwanted warm tones, such as red or orange, in hair dye.
To avoid a red tint in your hair, consider these tips:
* Choose an ash blonde dye: Look for hair dye labeled "ash blonde," "platinum blonde," or "silver blonde."
* Avoid warm tones: Avoid hair dyes that contain warm tones like "golden blonde," "honey blonde," or "caramel blonde."
* Consult a professional: If you are unsure about which hair dye to choose, consult a professional hair stylist for expert advice.
Ultimately, the color of your hair dye depends on a combination of factors, including your natural hair color, the type of dye you use, and the developer.