Everyone Can Use Purple Shampoo, Not Just Blondes

Summary: K18 has a new purple shampoo foam that works for everyone, not just blondes! Hard water and well water leave metal and mineral buildup in your hair, making it look dull and brassy. This new foam uses special ingredients to clean out those minerals. Because it is a foam, it goes on evenly without leaving splotches. A celebrity stylist says it can brighten red and brown hair, too. It is strong, so you only need to use it once or twice a month to keep your hair looking fresh and vibrant.

For more details, see Cosmopolitan at cosmopolitan.com/style-beauty/beauty/a70850257/k18-purple-shampoo-review/ (opens in new tab)