Blue shampoo is a haircare product designed specifically for brunettes to neutralize unwanted warm tones such as orange, red, and copper that can make brown hair look brassy. It contains blue pigments that deposit onto the hair to counteract these warm hues because blue is opposite orange on the color wheel, effectively canceling out orange and red undertones and leaving hair looking cooler and more ashy
. It works well for natural and dyed brunette hair, including those with highlights, balayage, or lightened brown hair, helping maintain a rich, balanced, and vibrant cool tone. Blue shampoo is typically used once or twice a week by lathering it into wet hair for a few minutes before rinsing
. In summary, blue shampoo:
- Neutralizes orange, red, and copper tones in brown hair
- Keeps brunette hair cool, ashy, and vibrant
- Is ideal for brunettes with or without highlights or lightened sections
- Helps extend the life of hair color and reduce brassiness between salon visits
This makes blue shampoo a key product for brunettes who want to maintain a fresh, cool-toned hair color and avoid warm, brassy hues.
