One of the frequently asked questions I get from blondes is always how can I keep my hair looking bright and non-brassy. So many people struggle when it comes to maintaining that freshly colored or highlighted just-out-of-the-salon look, and end up with their hair looking dull and brassy after just a few weeks. The reason for this is from the toner that was used after your highlighting or coloring has started to fade, or it could be from mineral deposits from your water which can leave hair looking faded.
My number one most important must-have product for any blonde to help bust brass and keep hair looking bright would absolutely be to invest in a good purple shampoo.
A purple shampoo is (quite literally) shampoo that is purple. The shampoo contains a hint of purple dye in the formula (which is why the shampoo is that somewhat intimidating dark purple color) so when you wash your hair the purple dye tones down any yellow or brassy color leaving your hair looking bright.
It's best to use the purple shampoo 2-3 times a week, leaving it on your hair for 2-3 minutes each time, until brassiness is gone, then once a week or so to maintain the color.Most salon haircare brands have a purple shampoo in their line of products, there are even some drugstore brands that now carry one as well. Having tried dozens of different ones, my tried and true favorites are Unite Blonda Shampoo, Fudge Violet Toning Shampoo and Clairol Shimmer Lights.
A few tips:
*If your hair is extra brassy and orange looking, you can apply purple shampoo to dry hair and leave it on for 5 minutes before going in the shower. This way it is less diluted and your hair really grabs on to the violet color to tone brassiness away.
*Purple shampoo tends to be somewhat drying, so make sure you follow up with a good moisturizing conditioner.
*Be careful not to use the purple shampoo too often or you might notice your hair getting a slight purple tinge to it--but no worries if your hair does turn slightly purple, it should go away after a wash or 2.