Shampoo For Grey Hair

I was growing my hair gray and now have gray roots 2 inches. I cut all her hair dyed black Friday so I will be completely gray, hence the need for a change of shampoo. Can anyone suggest a shampoo that will keep my shiney gray and not yellow?
Thank you

Matrix Essentials "blue shampoo is really good. It is purple and yellow to balance because it is opposite yellow on the color wheel.

I'm not entirely sure this guy is a good daily shampoo or conditioner, but if you lose one hair yellow, sterling silver AG use. It has a purple tint to neutralize the yellow and back to its normal gray / silver.

fresh

"Shimmering Lights" which is at any Sally's Beauty Supply.

puppet

Wig