~Sulphate Free Purple Toner Shampoo?~

Can anyone recommend a purple toner shampoo that can help to combat brassiness in lightened blonde hair that is also sulfate free? 

Here are two that I found. Back to Basics Blue Lavendar Color Protect Shampoo and Conditioner and Kenra Platinum Shampoo they are both Sulfate Free. I have Platinum hair and my Hair dresser who is a color speacialist since 1986 told me if you need to brighten up your hair use a mixture of 1 part bleach 1 part peroxide and 2 parts shampoo and it does work. I hope this helps you.

Thanks so much!