If you're blonde or going blonde, you may have been instructed to try out purple shampoo. Keeping it looking pretty, super bright and free from brass is not easy. That’s to use purple shampoo to cancel out unwanted brassiness. There are a handful of clean color shampoos available, but I chose Kavella because their products are a step above other natural purple shampoo … Using a purple toning shampoo is a key step in keeping your hair color looking fresh, vibrant, and like you just left the salon. I first tried Kavella a few years ago, and recently discovered that they had launched color shampoos. Check out this guide to purple shampoo and learn exactly what it is, how it works, and how you can use it at home to neutralize and tone yellow hair! There is an age old fix. To get why the tinted product is so crucial to hair … Kavella’s color shampoos have the best and cleanest purple shampoos that REALLY work (before and after photos are proof)!. Ahead, everything you need to know about how to use purple shampoo.. What is purple shampoo good for? Let’s be honest about blonde hair for a sec. But … Yes, it's actually purple, and it's that color for a reason!