I recently discovered this shampoo at Sephora at a few months ago. Amika Bust Your Brass Cool Blonde Shampoo: rated 4 out of 5 on MakeupAlley. I was looking forward to using this shampoo even after I switched back to brown hair. Rated 5 out of 5 by Kenzie from Amika purple shampoo I love how pigmented the purple is and isn’t drying at all! Bust Your Brass Cool Blonde Shampoo is rated 4.8 out of 5 by 57. Find helpful customer reviews and review ratings for amika Bust Your Brass Cool Blonde Shampoo, 10.1 Fl oz at Amazon.com. Needless to say I fell in love, This is now my go too shampoo to help keep my blonde … Find helpful customer reviews and review ratings for amika Bust Your Brass Shampoo, 10.1 Fl oz at Amazon.com. 5/5 stars from me. Read honest and unbiased product reviews from our users. Read honest and unbiased product reviews from our users. Aside from the great scent, this shampoo … Amika Bust Your Brass Cool Blonde Shampoo Review: I’m not big on scents usually, but this one smells amazing! See 1 member reviews and photos. amika Bust Your Brass Cool Blonde Shampoo I would highly recommend this product to anyone. Yes, I kept using it just for the scent alone.