Amika Bust Your Brass Cool Blonde Shampoo and Conditioner Liter Duo
Stop brassiness in its tracks with this ultra-violet shampoo and conditioner that keeps blonde color light and bright.
- Wild Cherry Bark Extract – brings out color, shine, and softness in all shades of natural and color-treated hair. Helps keep hair manageable, smooth, and silky.
- Hydrolyzed Keratin – restores moisture, elasticity, luster, and smoothness.
- Avocado Oil – provides nourishment from protein, vitamin A, D, E, B6, amino acids, folic acid, and minerals.
| Key Features | Free of sulfates, parabens, phthalates, gluten, mineral oil, and petrochemicals |
|---|---|
| Safe For | Color-treated, Brazilian-treated, and keratin-treated hair |
| Cruelty-Free | Yes |
FAQ
Does this shampoo help maintain the brightness of blonde hair over time?
Yes, the ultra-violet formula helps keep blonde color light and bright by reducing brassiness and enhancing natural shine.
Is this product suitable for chemically treated hair?
Yes, it is safe for color-treated, Brazilian-treated, and keratin-treated hair.
What makes the Wild Cherry Bark Extract beneficial?
It enhances color, shine, and softness in all shades of natural and color-treated hair, improving manageability and smoothness.

Molly Arnold –
I’ve used this duo for three months now and my blonde hair stays bright without turning yellow. The conditioner leaves my hair soft and manageable. I love the avocado oil blend—it feels rich without being greasy.
Chloe Mills –
My hair has been color-treated for years, and this shampoo finally stops the brassiness I used to get. The texture is light, and it doesn’t weigh my hair down. Great for daily use.
Caroline Powell –
The shampoo works well for keeping my blonde tones fresh. I noticed a difference in shine after just one use. The conditioner is a bit thicker than I expected, but it’s nourishing.
Adrian Sutherland –
I switched from a sulfate-based product and this has made a noticeable difference. My hair feels smoother and more vibrant. No greasiness, and it’s gentle on color-treated strands.