|A salon tip that really works for better color delivery.|
Therefore, pick up one of those inexpensive brushes (which are less than two dollars) at a beauty supply store before you next hair coloring.
What you do is start jabbing at the roots as you are coloring. This bit of force is opening up the cuticle layer in the process for better saturation.
I hope you try this because it is a fantastic solution for a frustrating problem of resistant grays!