For blondes who usually have yellow in their brassy tones, the best color to use to neutralize those shades is purple. When lightened, color-treated hair is exposed to heat, certain hair products, or environmental factors (like pollution or the sun), you'll eventually start to see the hair color change—most often revealing brassy tones. What Sunil says: "I was recommended this product by a beauty editor with many years of industry experience, so naturally I had to give it a go.

So when you wash with this particular shade of shampoo, it deposits purple pigment into blonde hair, to counteract any yellowy tones that start to shine through. To get my hair blonde, it needs some serious bleaching, and suffice to say, it needs all the help and conditioning it can get. Whether you want to instantly knock out brassiness, banish yellow tones or preserve a salon-fresh platinum colour wash after wash, our Clean Blonde collection allows YOU to take control of your tone and flaunt your coolest blonde ever! She graduated from the University of Calcutta, West Bengal, and did her post-graduation from the University of Kalyani, West Bengal.What Katie says:I used to see this in my granny's bathroom all the time when I was a child and I would wonder why on earth she use a shampoo that was that colour. However, it is recommended not to leave the shampoo for longer than 10-12 minutes, depending on the hair type. And Shannon has naturally straight, brunette hair but has bleached balayage which needs constant management. And while we love Marge Simpson, that’s not the look most of us are going for when we reach for blue shampoo.

It contains conditioning and nourishing ingredients like coconut oil and cocoa butter that help in making your hair shinier, healthier, and stronger.If you remember the color wheel, purple cancels out gold while blue cancels out orange,” she explains.